Carbon dioxide emission calculation system, method, and program

Abstract

To provide a carbon dioxide exhaustion amount calculating system, a method thereof, and a program therefor which can properly obtain a carbon dioxide exhaustion amount as compared with that obtained when a plurality of processes for manufacturing a product are carried out over a plurality of periods.SOLUTION: The present invention is directed to a carbon dioxide exhaustion amount calculating system for calculating a CO2 exhaustion amount relating to a product manufactured through a plurality of processes in a factory capable of manufacturing products of plural kinds with respect to each predetermined period. According to the system, a second unit CO2 exhaustion amount per unit in the main facility during each period for predetermined periods is calculated based on an unadjusted second unit CO2 exhaustion amount per unit in the main facility during a period prior to the period with respect to each of the plurality of main facilities corresponding to the respective plurality of processes used in manufacturing a target product of the target kind. A process CO2 exhaustion amount relating to the process carried out in the main facility is calculated based on a total amount of the calculated second unit CO2 exhaustion amount and manufacturing load of the main facility, with respect to the period in which the processes corresponding to the main facility are carried out.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a carbon dioxide emission calculation program for determining the amount of carbon dioxide emitted in connection with a predetermined type of product. [Background technology]

[0002] In recent years, there has been growing interest in carbon dioxide emissions from the perspective of protecting the global environment. Technologies related to such carbon dioxide emissions are disclosed, for example, in Patent Document 1. The carbon traceability management system disclosed in Patent Document 1 includes a utility management means for recording and managing power received from external sources, the amount of cooling and heating received, the operating performance of the private power generation equipment, and the operating performance of the cooling and heating equipment; a material management means for recording and managing the usage of materials and raw materials; a facility management means for managing and recording the energy used by facility equipment during the manufacturing period; a manufacturing execution management means for managing the production performance of products; an emission calculation means for calculating greenhouse gas emissions from the records recorded and managed by the utility management means, material management means, facility management means, and manufacturing execution management means; and the greenhouse gas emissions calculated by the emission calculation means as the manufacturing amount per unit of product. The system includes an emission allocation means for allocating emissions to lots, classifying primary power equipment such as boilers, power receiving equipment, private power generation equipment, and water supply equipment as primary power equipment, power equipment that operates by receiving energy from the primary power equipment as secondary power equipment, and non-power equipment that operates by receiving energy from the primary and secondary power equipment as tertiary equipment. The emission allocation means allocates greenhouse gas emissions for product lots based on the usage status of tertiary equipment corresponding to product lots and the usage status of secondary equipment corresponding to product lots, and includes an emission management means for managing the greenhouse gas emissions allocated to the manufacturing lots as unique data for the manufacturing lots. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Patent No. 5097728 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] Incidentally, the carbon traceability management system disclosed in Patent Document 1 can determine greenhouse gas emissions for each manufacturing lot as a single unit of product. When determining greenhouse gas emissions, a predetermined period is usually set, and the emissions for that period are determined based on the actual values ​​during that period. However, there may be multiple processes for manufacturing a product that span multiple periods, and the carbon traceability management system disclosed in Patent Document 1 cannot properly determine greenhouse gas emissions in such cases.

[0005] This invention was made in view of the above circumstances, and its purpose is to provide a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a carbon dioxide emission calculation program that can more appropriately determine carbon dioxide emissions even when multiple processes for manufacturing a product span multiple periods of time. [Means for solving the problem]

[0006] As a result of various studies, the inventors have found that the above objective can be achieved by the present invention as follows. That is, a carbon dioxide emission calculation system according to one aspect of the present invention is a system for determining the CO2 emissions related to a product at predetermined intervals in a factory capable of manufacturing products of multiple types that are manufactured through multiple processes, and comprises: a raw material emission calculation unit that determines the total amount of raw material CO2 emissions related to the manufacture of a target product of a target type based on a given first unit CO2 emission per unit of raw material used in the manufacture of a target product of a target type and the total amount of raw material used in the manufacture of a target product of a target type; a main equipment unit emission calculation unit that determines the second unit CO2 emission per unit of the main equipment for each predetermined period, based on the unadjusted second unit CO2 emission per unit of the main equipment for each of the multiple processes used in the manufacture of a target product of a target type; and the target product of a target type The system includes a process emission calculation unit that calculates the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in manufacturing, based on the second unit CO2 emissions per unit of the main equipment calculated by the main equipment unit emission calculation unit during the period in which the process corresponding to the main equipment is performed, and the total amount of manufacturing load on the main equipment for the manufacture of the target product of the target type, wherein the target product of the target type is a product whose manufacture is completed during the target period which is the calculation period, and for which CO2 emissions are to be calculated, the main equipment is equipment that corresponds to the process and is used to carry out the process, and the main equipment unit emission calculation unit calculates the unadjusted second unit CO2 emissions per unit based on the total amount of manufacturing load on the main equipment during manufacturing over the predetermined period and the total amount of CO2 emissions related to the main equipment relative to the total amount of manufacturing load.Preferably, in the carbon dioxide emission calculation system described above, the process emission calculation unit calculates the process CO2 emissions for the processes performed on the main equipment during the implementation period for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the unit CO2 emissions per second unit of CO2 per unit of the main equipment during the implementation period, as determined by the main equipment unit emission calculation unit, and the total amount of manufacturing load on the main equipment during the implementation period for the manufacture of the target product of the target type. Preferably, in the carbon dioxide emission calculation system described above, the main equipment unit emission calculation unit calculates the unit CO2 emissions per second unit of CO2 per unit of the main equipment during the implementation period for by weighting the unit CO2 emissions per second unit of CO2 per unit of the main equipment during multiple periods prior to the implementation period.

[0007] This carbon dioxide emission calculation system first determines, for each predetermined period, the unit-per-unit CO2 emission at the main equipment for that period, for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type. Since the unit-per-unit CO2 emission at the main equipment for that period is known, the carbon dioxide emission calculation system can then determine the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the unit-per-unit CO2 emission at the main equipment for that period determined as described above, and the total manufacturing load on the main equipment for the manufacture of the target product of the target type. Therefore, the carbon dioxide emission calculation system can more accurately determine carbon dioxide emissions even when the multiple processes for manufacturing the above-mentioned product span multiple periods.

[0008] In another embodiment, the carbon dioxide emission calculation system further includes a target product emission calculation unit that calculates the total amount of target product CO2 emissions for the target product of the target type, which is the sum of the total process CO2 emissions for each process performed by the main equipment, as determined by the process emission calculation unit for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type, and the total amount of raw material CO2 emissions for the raw materials related to the manufacture of the target product of the target type, as determined by the raw material emission calculation unit.

[0009] Such a carbon dioxide emission calculation system can determine the total amount of CO2 emissions for the target products of the target type (i.e., the amount of carbon dioxide emissions for each product).

[0010] In another embodiment, the carbon dioxide emission calculation system further comprises an emission allocation calculation unit which, for each predetermined period, allocates the total amount of CO2 emissions from the auxiliary equipment used for a plurality of facilities that are indirectly involved in the manufacture of the product via the main equipment to each of the plurality of facilities in which the auxiliary equipment is used, at a predetermined rate (first rate), thereby determining the amount of CO2 emissions allocated to each of the plurality of facilities in which the auxiliary equipment is used for that period, and the main equipment unit emission calculation unit is the main equipment When determining the second unit CO2 emission per unit of equipment, if the auxiliary equipment is present in relation to the main equipment, the CO2 emission allocation amount for the equipment corresponding to the main equipment during that period, as determined by the emission allocation calculation unit, is added to the total amount of CO2 emissions for the main equipment relative to the total amount of the manufacturing load to determine a new total amount of CO2 emissions for the main equipment relative to the total amount of the manufacturing load. Based on this newly determined total amount of CO2 emissions for the main equipment relative to the total amount of the manufacturing load, the unadjusted second unit CO2 emission per unit of the main equipment during that period is determined. Preferably, in the carbon dioxide emission calculation system described above, the emission allocation calculation unit determines the total amount of auxiliary equipment CO2 emissions during the predetermined period based on the total amount of consumption associated with the operation of the auxiliary equipment, which involves carbon dioxide emissions, and the fifth unit CO2 emission per unit of the consumption. Preferably, in the carbon dioxide emission calculation system described above, the first ratio is the usage ratio of the products manufactured by the auxiliary equipment in each of the plurality of equipment in which the auxiliary equipment is used. Preferably, in the carbon dioxide emission calculation system described above, the first ratio is the ratio of the production volume of each product manufactured in each of the plurality of facilities in which the auxiliary equipment is used.

[0011] The total amount of CO2 emissions from auxiliary equipment during a predetermined period cannot be directly allocated to the target products of the target type because the auxiliary equipment is used in multiple facilities. The carbon dioxide emission calculation system allocates the total amount of CO2 emissions from auxiliary equipment during each predetermined period to each of the multiple facilities in which the auxiliary equipment is used, at a predetermined first ratio, so that it can be allocated to the target products of the target type.

[0012] In another embodiment, the carbon dioxide emission calculation system further comprises an auxiliary processing emission calculation unit that calculates the total amount of auxiliary processing CO2 emissions related to the predetermined processing on a given product of a given type, based on the amount of CO2 emissions per unit of a predetermined processing performed on the product between the time of manufacture and delivery to the customer, and the total amount of the product of the target type. Preferably, in the carbon dioxide emission calculation system described above, the predetermined processing is an inspection processing to inspect the product. Preferably, in the carbon dioxide emission calculation system described above, the predetermined processing is a packaging processing to package the product. Preferably, in the carbon dioxide emission calculation system described above, the predetermined processing is a transportation processing to transport the product from the factory to the customer.

[0013] Such a carbon dioxide emission calculation system makes it possible to take into account the total amount of incidental CO2 emissions from predetermined treatments performed on the product from the time of manufacture to delivery to the customer, in addition to the carbon dioxide emissions for each product of the target type.

[0014] In another embodiment, the carbon dioxide emission calculation system described above comprises a first residual emission calculation unit that determines a fourth unit CO2 emission per unit product from the residual emission source based on the total amount of residual CO2 emissions per unit product from the residual emission source and the total amount of products manufactured during the target period, and a second residual emission calculation unit that determines a total amount of second residual CO2 emissions from the residual emission source for the manufacture of the target product of the target type based on the fourth unit CO2 emission per unit product from the residual emission source determined by the first residual emission calculation unit and the total amount of target products of the target type manufactured during the target period. Preferably, in the carbon dioxide emission calculation system described above, the CO2 emission sources that emit CO2 in the factory are the main equipment, the auxiliary equipment if there is one, the predetermined process if there is one, and the residual emission sources if there are residual emission sources, the auxiliary equipment is equipment used for multiple pieces of equipment that are indirectly involved in the manufacture of the product through the main equipment, the predetermined process is a process performed on the product from after the product is manufactured until it is delivered to the customer, and the residual emission sources are the remaining CO2 emission sources in the factory that emit CO2, excluding the main equipment, the auxiliary equipment if there is one, and the predetermined process if there is one. Preferably, in the carbon dioxide emission calculation system described above, the first residual emission calculation unit calculates the total amount of residual CO2 emissions related to the residual emission sources during the target period based on the total amount of consumption associated with the operation of the residual emission sources that emits carbon dioxide and the fifth unit CO2 emission per unit of the consumption. Preferably, in the carbon dioxide emission calculation system described above, the residual emission source includes at least one of a crane, truck, and forklift used to transport goods within the factory.Preferably, in the carbon dioxide emission calculation system described above, the residual emission sources include equipment that emits CO2 in a shared facility that may be shared and is not directly involved in the manufacture of the product. Preferably, in the carbon dioxide emission calculation system described above, the residual emission sources include an industrial waste treatment facility that processes industrial waste within the factory.

[0015] Such a carbon dioxide emission calculation system makes it possible to take the total amount of residual CO2 emissions from the residual emission sources into account for the carbon dioxide emissions of each target product of the target type.

[0016] In another embodiment, in the carbon dioxide emission calculation systems described above, a lotted product discarded after the completion of any of the plurality of processes, the completion of which is within the target period, is considered a target product of the target type, and one or more processes performed up to the disposal of the lotted product from among the plurality of processes used to manufacture the lotted product is considered a plurality of processes used to manufacture the target product of the target type, the raw material emission calculation unit determines the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the target product of the target type as the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the lotted product, the main equipment unit emission calculation unit determines the second unit CO2 emissions per unit of the lotted product at the main equipment for the period, the process emission calculation unit determines the process CO2 emissions related to the processes performed at the main equipment for the manufacture of the target product of the target type as the process CO2 emissions related to the processes performed at the main equipment for the manufacture of the lotted product, and the target product emission calculation unit determines the total amount of target product CO2 emissions related to the target product of the target type as the total amount of lotted product CO2 emissions related to the lotted product.

[0017] Such a carbon dioxide emission calculation system makes it possible to determine the carbon dioxide emissions from lot-out materials that are discarded after the completion of any one of several processes.

[0018] In another aspect, in these above-described carbon dioxide emission calculation systems, when there are lot-out products of the same type as the target product of the target type, a discharge amount addition calculation unit is further provided that adds, to the total amount of the target product CO2 emissions obtained by the target product emissions calculation unit, only a predetermined addition amount out of the total amount of the lot-out product CO2 emissions obtained by the target product emissions calculation unit. The type of the lot-out product is the type of the product when the lot-out product is hypothetically completed in manufacturing and becomes a product. The predetermined addition amount is a predetermined ratio (second ratio) of the total amount of the target product CO2 emissions. The predetermined ratio (second ratio) is, in the same type, the ratio of the second number of lot-out products whose end is in the previous period 1 period before the target period to the sum of the first number of products completed in manufacturing in the previous period 1 period before the target period and the second number of lot-out products (second ratio = second number / (first number + second number)).

[0019] Such a carbon dioxide emission calculation system can allocate the lot-out product CO2 emissions to the target product CO2 emissions by a predetermined second ratio.

[0020] In another aspect, in these above-described carbon dioxide emission calculation systems, a cumulative unallocated amount calculation unit is further provided that calculates a cumulative unallocated amount by accumulating, for each predetermined period, the remaining amount that was not added to the total amount of the target product CO2 emissions by the discharge amount addition calculation unit out of the total amount of the lot-out product CO2 emissions.

[0021] Such a carbon dioxide emission calculation system can calculate the cumulative unallocated amount of the total amount of the lot-out product CO2 emissions.

[0022] Another embodiment of the present invention relates to a carbon dioxide emission calculation method for a factory capable of manufacturing products of multiple types through multiple processes, and is a method for determining the CO2 emissions related to a product at predetermined intervals, comprising: a raw material emission calculation step of determining the total amount of raw material CO2 emissions related to the manufacture of a target product of a target type, based on a given first unit CO2 emission per unit of raw material used in the manufacture of a target product of a target type and the total amount of raw material used in the manufacture of a target product of a target type; a main equipment unit emission calculation step of determining the second unit CO2 emission per unit of the main equipment for each predetermined period, based on the unadjusted second unit CO2 emission per unit of the main equipment for periods prior to the period, for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of a target type; and The system includes a process emission calculation step for each of the multiple main equipment units corresponding to each of the multiple processes, and for each of the multiple main equipment units corresponding to each of the multiple processes, during the period in which the process corresponding to the main equipment is performed, the process CO2 emissions related to the process performed by the main equipment unit emission calculation step are determined based on the second unit CO2 emissions per unit of the main equipment unit obtained in the main equipment unit emission calculation step and the total amount of manufacturing load on the main equipment for the manufacture of the target product of the target type, wherein the target product of the target type is a product whose manufacture is completed during the target period which is the calculation period and for which CO2 emissions are to be determined, the main equipment is equipment that corresponds to the process and is used to carry out the process, and the main equipment unit emission calculation step determines the unadjusted second unit CO2 emissions per unit based on the total amount of manufacturing load on the main equipment for manufacturing during the predetermined period and the total amount of CO2 emissions related to the main equipment relative to the total amount of manufacturing load.

[0023] This method of calculating carbon dioxide emissions makes it possible to determine carbon dioxide emissions more accurately, even when the manufacturing process for the aforementioned products spans multiple periods.

[0024] In another embodiment, in the carbon dioxide emission calculation method described above, a lot of waste that is discarded after the completion of any of the plurality of processes, and the completion of the lot of waste is within the target period, is considered a target product of the target type, and one or more processes performed up to the time of disposal from among the plurality of processes used to manufacture the lot of waste are considered a plurality of processes used to manufacture the target product of the target type, the raw material emission calculation step determines the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the target product of the target type as the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the lot of waste, the main equipment unit emission calculation step determines the second unit CO2 emissions per unit of the main equipment for the lot of waste during that period, and the process emission calculation step determines the amount of CO2 emissions per unit for the manufacture of the target product of the target type The process CO2 emissions related to the processes carried out by the main equipment are determined as the process CO2 emissions related to the processes carried out by the main equipment for the manufacture of the lotted products. The target product emission calculation step determines the total amount of target product CO2 emissions related to the target products of the target type as the total amount of lotted product CO2 emissions related to the lotted products. The lotted product emission calculation step further includes determining the sum of the process CO2 emissions related to the processes carried out by the main equipment, as determined in the process emission calculation step, for each of the multiple main equipment corresponding to each of the one or more processes carried out up to the disposal, among the multiple processes used in the manufacture of the lotted products, and the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the lotted products, as determined in the raw material emission calculation step, as the total amount of lotted product CO2 emissions related to the lotted products.

[0025] This method of calculating carbon dioxide emissions can determine the amount of carbon dioxide emitted from lot-out waste discarded after the completion of any one of several processes.

[0026] Another embodiment of the present invention is a carbon dioxide emission calculation program that determines the CO2 emissions related to a product at predetermined intervals in a factory capable of manufacturing products of multiple types through multiple processes, and is a program that causes a computer to function as either of the above-described carbon dioxide emission calculation systems.

[0027] According to this, a carbon dioxide emission calculation program can be provided, and this carbon dioxide emission calculation program will have the same effects as the carbon dioxide emission calculation systems described above. [Effects of the Invention]

[0028] The carbon dioxide emission calculation system, carbon dioxide emission calculation method, and carbon dioxide emission calculation program according to the present invention make it possible to more accurately determine carbon dioxide emissions even when multiple processes for manufacturing a product span multiple periods. [Brief explanation of the drawing]

[0029] [Figure 1] This figure shows the configuration of the carbon dioxide emission calculation system in the embodiment. [Figure 2] As an example, this is a diagram showing a manufacturing process information table. [Figure 3] As an example, this is a diagram showing a product manufacturing performance information table for a product. [Figure 4] As an example, this is a diagram showing a product manufacturing history information table related to product lots. [Figure 5] As an example, this is a diagram used to explain the progress (implementation status) of a process at predetermined intervals. [Figure 6] As an example, this is a diagram showing a table of equipment-related performance information. [Figure 7] As an example, this is a diagram showing a table of performance information related to residual emission sources. [Figure 8] As an example, the diagram shows a table of unit emissions information. [Figure 9]As an example, this is a diagram showing a matrix of related information for auxiliary equipment. [Figure 10] As an example, this diagram illustrates the calculation methods for the total amount of process CO2 emissions related to processes carried out by the main equipment and the total amount of auxiliary equipment CO2 emissions related to auxiliary equipment. [Figure 11] As an example, this diagram illustrates the method for calculating the CO2 emission allocation amount for a main facility that uses auxiliary equipment. [Figure 12] As an example, this diagram illustrates the calculation method for the unadjusted second unit CO2 emissions per unit in the main facility. [Figure 13] As an example, this is a diagram illustrating the calculation method for the second unit CO2 emission per unit in the main facility. [Figure 14] As an example, this is a diagram illustrating the amount of CO2 emissions per unit in the main facility for a predetermined period. [Figure 15] As an example, this is a diagram illustrating the calculation method for the fourth unit CO2 emission per unit product in the residual emission source. [Figure 16] As an example, the figure shows examples of the output of each calculation result related to lot-out items. [Figure 17] As an example, the following figure shows an example of the output of each calculation result. [Figure 18] To include the operation of the carbon dioxide emission calculation system. [Modes for carrying out the invention]

[0030] Hereinafter, one or more embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the disclosed embodiments. In each figure, components denoted by the same reference numerals are identified as identical components, and their descriptions are omitted where appropriate. In this specification, general reference numerals are used without subscripts, while individual components are indicated by subscripts.

[0031] The carbon dioxide emission calculation system in this embodiment is a system that determines the carbon dioxide emissions (CO2 emissions) related to products at predetermined intervals in a factory (plant) capable of manufacturing products of multiple types through multiple processes. This carbon dioxide emission calculation system comprises a raw material emission calculation unit, a main equipment unit emission calculation unit, and a process emission calculation unit. The raw material emission calculation unit determines the total amount of raw material CO2 emissions related to the manufacture of a target product of a target type, based on a given first unit CO2 emission per unit of raw material used in the manufacture of a target product of a target type, and the total amount of raw material used in the manufacture of the target product of the target type. The main equipment unit emission calculation unit determines, at predetermined intervals, the second unit CO2 emission per unit of the main equipment for that period, based on the unadjusted second unit CO2 emission per unit of the main equipment for periods prior to that period, for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type. The main equipment unit emission calculation unit determines the unadjusted second unit CO2 emission per unit based on the total amount of manufacturing load on the main equipment during manufacturing over a predetermined period and the total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load. The process emission calculation unit determines the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the second unit CO2 emission per unit at the main equipment determined by the main equipment unit emission calculation unit and the total amount of manufacturing load on the main equipment for the manufacture of the target product of the target type, for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type.

[0032] The following provides a more detailed explanation of such a carbon dioxide emission calculation system, as well as the carbon dioxide emission calculation method and carbon dioxide emission calculation program implemented therein. Here, as an example, we will use a factory (plant) capable of manufacturing various types of rolled steel sheets, but the factory (plant) can be any type as long as it is capable of manufacturing products of multiple types through multiple processes. The carbon dioxide emission calculation system may be configured by connecting an input / output terminal device for inputting and outputting data, one or more processing units (e.g., a server device) that perform various calculation processes, and one or more database devices that store (manage) various data in a way that allows them to communicate with each other. At least some of these input / output terminal devices, one or more processing units, and one or more database devices may be configured as a single unit and connected to the rest in a way that allows them to communicate with each other. Here, however, we will explain the carbon dioxide emission calculation system using a carbon dioxide emission calculation device that integrates all of these components as an example.

[0033] Figure 1 shows the configuration of a carbon dioxide emission calculation system (a carbon dioxide emission calculation device as an example) in an embodiment.

[0034] The carbon dioxide emission calculation system (carbon dioxide emission calculation device as an example) S in this embodiment includes, for example, an input unit 1, an output unit 2, an interface unit (IF unit) 3, a control processing unit 4, and a storage unit 6, as shown in Figure 1.

[0035] The input unit 1 is connected to the control processing unit 4 and is a device that inputs various commands to the carbon dioxide emission calculation device S, such as a command to start the calculation of CO2 emissions, and various data necessary for operating the carbon dioxide emission calculation device S, such as the product manufacturing process, product manufacturing results, and target period. For example, it may be a plurality of input switches assigned to predetermined functions, a keyboard, a mouse, etc. The output unit 2 is connected to the control processing unit 4 and is a device that outputs commands, data, and calculation results input from the input unit 1 according to the control of the control processing unit 4. For example, it may be a display device such as a CRT display, LCD (liquid crystal display device), or organic EL display, or a printing device such as a printer.

[0036] The input unit 1 and output unit 2 may be configured as touch panels. In this configuration, the input unit 1 is a position input device that detects and inputs the operating position, such as a resistive or capacitive touchscreen, and the output unit 2 is a display device. In this touch panel, the position input device is provided on the display surface of the display device, and one or more candidate input contents that can be input to the display device are displayed. When the user touches the display position that displays the input content they want to input, the position input device detects that position, and the display content displayed at the detected position is input to the carbon dioxide emission calculation device S as the user's operation input. With such a touch panel, the user can easily understand the input operation intuitively, thus providing a carbon dioxide emission calculation device S that is easy for the user to use.

[0037] The IF unit 3 is connected to the control processing unit 4 and, in accordance with the control of the control processing unit 4, is a circuit that inputs and outputs data to and from external devices, for example. Examples include an RS-232C serial communication interface circuit, an interface circuit using the Bluetooth® standard, and an interface circuit using the USB standard. Alternatively, the IF unit 3 may be a communication interface circuit that sends and receives communication signals to and from external devices, such as a data communication card or a communication interface circuit conforming to the IEEE 802.11 standard.

[0038] The memory unit 6 is connected to the control processing unit 4 and is a circuit that stores various predetermined programs and various predetermined data in accordance with the control of the control processing unit 4.

[0039] The various predetermined programs mentioned above include, for example, a control processing program, which includes, for example, a control program, a raw material emission calculation program, a main equipment unit emission calculation program, a process emission calculation program, an emission allocation calculation program, an auxiliary processing emission calculation program, a first residual emission calculation program, a second residual emission calculation program, a target product emission calculation program, an emission addition calculation program, and a cumulative unallocated amount calculation program. The control program controls each of the parts 1 to 3 and 6 of the carbon dioxide emission calculation device S according to the function of each part. The raw material emission calculation program is a program that calculates the total amount of raw material CO2 emissions related to the manufacture of a target product of a target type, based on a given first unit CO2 emission per unit of raw material used in the manufacture of a target product of a target type and the total amount of raw material used in the target product of the target type. The target product of the target type is a product whose manufacture is completed during the target period, which is the calculation period, and for which CO2 emissions are calculated. The main equipment unit emission calculation program calculates, for each predetermined period, the unit amount of second unit CO2 emissions per unit of the main equipment for that period, based on the unit amount of unadjusted second unit CO2 emissions per unit of the main equipment for periods prior to that period, for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type. The main equipment unit emission calculation program calculates the unit amount of unadjusted second unit CO2 emissions per unit based on the total amount of manufacturing load on the main equipment during the predetermined period and the total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load. The main equipment corresponds to the process and is used to carry out the process.The process emission calculation program calculates the process CO2 emissions for each of the multiple main pieces of equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the second unit CO2 emissions per unit of the main piece of equipment obtained by the main piece of equipment unit emission calculation program and the total amount of manufacturing load on the main piece of equipment for the manufacture of the target product of the target type. The emission allocation calculation program calculates the amount of CO2 emissions for each of the multiple pieces of equipment using the auxiliary equipment for each predetermined period, by allocating the total amount of auxiliary equipment CO2 emissions for the auxiliary equipment during that period to each of the multiple pieces of equipment using the auxiliary equipment at a predetermined rate (first rate). The auxiliary equipment is equipment used for multiple pieces of equipment that are indirectly involved in the manufacture of the product through the main equipment. The aforementioned auxiliary processing emission calculation program is a program that calculates the total amount of auxiliary processing CO2 emissions for the target product of the target type related to the predetermined processing, based on a given third unit CO2 emission per unit in a predetermined processing and the total amount of the target product of the target type whose manufacture was completed during the target period. The predetermined processing is a processing performed on the product between the time of manufacture and delivery to the customer. The first residual emission calculation program is a program that calculates the fourth unit CO2 emission per unit product in the residual emission source based on the total amount of residual CO2 emissions related to the residual emission source during the target period and the total amount of products whose manufacture was completed during the target period. The residual emission source will be described later. The second residual emission calculation program is a program that calculates the total amount of second residual CO2 emissions related to the residual emission source for the manufacture of the target product of the target type, based on the fourth unit CO2 emission per unit product in the residual emission source calculated by the first residual emission calculation program and the total amount of the target product of the target type whose manufacture was completed during the target period.The aforementioned target product emission calculation program calculates the total amount of target product CO2 emissions for the target product of the aforementioned type by summing the total amount of CO2 emissions for each process performed by the main equipment, as determined by the process emission calculation program, for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the aforementioned type, and the total amount of CO2 emissions for raw materials related to the manufacture of the target product of the aforementioned type, as determined by the raw material emission calculation program. In this embodiment, a lotted product discarded after the completion of any of the plurality of processes, the completion of which is within the target period, is considered a target product of the target type, and one or more processes performed up to the time of disposal among the plurality of processes used to manufacture the lotted product is considered a plurality of processes used to manufacture the target product of the target type, the raw material emission calculation program determines the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the target product of the target type as the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the lotted product, the main equipment unit emission calculation program determines the second unit CO2 emissions per unit of the lotted product at the main equipment for the period, the process emission calculation program determines the process CO2 emissions related to the processes performed at the main equipment for the manufacture of the target product of the target type as the process CO2 emissions related to the processes performed at the main equipment for the manufacture of the lotted product, and the target product emission calculation program determines the total amount of target product CO2 emissions related to the target product of the target type as the total amount of lotted product CO2 emissions related to the lotted product. The aforementioned target product emission calculation program is a program that, if there are lot-out items of the same type as the target product, adds a predetermined additional amount from the total amount of CO2 emissions of the lot-out items, which is calculated by the target product emission calculation unit, to the total amount of CO2 emissions of the target product, which is calculated by the target product emission calculation unit.In other words, the target product emission calculation program functions as a lot-out product emission calculation program, and calculates the total amount of lot-out product CO2 emissions for the lot-out product by summing the total amount of CO2 emissions for each process performed by the main equipment, which is determined by the process emission calculation program, for each of the multiple main equipment corresponding to one or more processes performed up to the time of disposal, among the multiple processes used in the manufacture of the lot-out product, and the total amount of raw material CO2 emissions for the raw materials for the manufacture of the lot-out product, which is determined by the raw material emission calculation program. The type of lot-out product is the type of product if the lot-out product were to be manufactured and become a product. The predetermined additional amount is a predetermined percentage (second percentage) of the total amount of target product CO2 emissions determined by the target product emission calculation program. The predetermined ratio (second ratio) is the ratio of the second number to the sum of the first number of products of the same type whose manufacture was completed in the previous period and the second number of lot-out products whose completion was in the previous period (second ratio = second number / (first number + second number)). The previous period is the period one period prior to the target period. The cumulative unallocated amount calculation program is a program that calculates the cumulative unallocated amount by accumulating the remaining amount from the total amount of CO2 emissions from the lot-out products that were not added to the total amount of CO2 emissions from the target products by the emission addition calculation program for each predetermined period (remaining amount = total amount of CO2 emissions from the lot-out products - added amount).

[0040] The aforementioned various predetermined data include, for example, manufacturing process information, product manufacturing performance information, equipment-related performance information, residual emission source-related performance information, unit emission information, auxiliary equipment-related information, various calculation results during the calculation process, and final calculation results, as these are all data necessary for executing each of these programs.

[0041] Such a storage unit 6 may include, for example, a non-volatile memory element such as ROM (Read Only Memory) or a rewritable non-volatile memory element such as EEPROM (Electrically Erasable Programmable Read Only Memory). Furthermore, the storage unit 6 includes RAM (Random Access Memory) which serves as the working memory of the control processing unit 4, storing data generated during the execution of the predetermined program. The storage unit 6 may also be configured to include a hard disk drive with a relatively large storage capacity.

[0042] The memory unit 6 functionally includes a manufacturing process information storage unit 61, a product manufacturing performance information storage unit 62, an equipment-related performance information storage unit 63, a residual emission source-related performance information storage unit 64, a unit emission information storage unit 65, and an auxiliary equipment-related information storage unit 66, respectively, for storing manufacturing process information, product manufacturing performance information, equipment-related performance information, residual emission source-related performance information, unit emission information, and auxiliary equipment-related information.

[0043] Figure 2 shows an example of a manufacturing process information table. Figure 2A shows the manufacturing process information table for product No. "P001", and Figure 2B shows the manufacturing process information table for product No. "P002". The product No. is an identifier used to identify and distinguish a product. Figure 3 shows an example of a product manufacturing performance information table for a product. Figure 4 shows an example of a product manufacturing performance information table for a product lot. Figure 5 is an example of a diagram used to explain the implementation status (progress) of a process for each predetermined period. Figure 6 shows an example of an equipment-related performance information table. Figure 7 shows an example of a residual emission source-related performance information table. Figure 8 shows an example of a unit emission information table. Figure 8A shows a unit emission information table for the first unit CO2 emission per unit in raw materials, Figure 8B shows a unit emission information table for each unit CO2 emission per unit related to the main equipment, sub-equipment and residual emission sources, and Figure 8C shows a unit emission information table for the third unit CO2 emission per unit in a predetermined process. Figure 9 shows an example of a matrix illustrating the relationship information for sub-equipment.

[0044] The manufacturing process information storage unit 61 stores manufacturing process information. This manufacturing process information is data that represents the manufacturing process for each type of product.

[0045] In this embodiment, this manufacturing process information is stored in a table format in the manufacturing process information storage unit 61. The manufacturing process information table 100 (100a, 100b) for registering this manufacturing process information includes, for example, as shown in Figure 2, a process sequence field 101 (101a, 101b (101b-1, 101b-2)) for registering the order of the processes, and an equipment field 102 (102a, 102b (102b-1, 102b-2)) for registering the main equipment used to carry out the processes in the order registered in the process sequence field 101, and has a record for each process. The main equipment corresponds to a process and is used to carry out the process, and is appropriately determined according to the products manufactured in the factory. In this embodiment, as described above, the factory is capable of manufacturing a wide variety of rolled steel sheets, so the main equipment is, for example, melting and casting equipment, rolling equipment, heat treatment equipment, cutting equipment, etc. Note that there may be one or more main pieces of equipment of the same type.

[0046] Figure 2 shows manufacturing process information tables 100a and 100b for two types of products, product No. "P001" and product No. "P002". Of course, a manufacturing process information table is prepared in advance for each type of product and stored in the manufacturing process information storage unit 61.

[0047] Furthermore, if the same type of product can be manufactured using different processes, a manufacturing process information table 100 is created for each of the different processes and stored in the manufacturing process information storage unit 61. For example, product No. "P002" can be manufactured using a first manufacturing process pattern and a second manufacturing process pattern that differs from the first manufacturing process pattern, as shown in Figure 2B. The first manufacturing process pattern is a pattern in which each of the following processes is carried out sequentially: a first process carried out using the main equipment named "melting and casting 2", a second process carried out using the main equipment named "rolling 2", a third process carried out using the main equipment named "rolling 2", a fourth process carried out using the main equipment named "rolling 3", a fifth process carried out using the main equipment named "heat treatment", a sixth process carried out using the main equipment named "plating", and a seventh process carried out using the main equipment named "cutting 2". The second manufacturing process pattern is a pattern in which each of the following processes is carried out sequentially: the first process carried out using the main equipment named "Smelting and Casting 1", the second process carried out using the main equipment named "Rolling 2", the third process carried out using the main equipment named "Rolling 3", the fourth process carried out using the main equipment named "Rolling 3", the fifth process carried out using the main equipment named "Heat Treatment", the sixth process carried out using the main equipment named "Plating", and the seventh process carried out using the main equipment named "Cutting 2". The manufacturing process information table 102b for product No. "P002" comprises a table 102b-1 for registering the manufacturing process information of the first manufacturing process pattern and a table 102b-2 for registering the manufacturing process information of the second manufacturing process pattern.

[0048] The product manufacturing performance information storage unit 62 stores product manufacturing performance information. The product manufacturing performance information is information (data) representing the amount of product manufactured (production volume) during a predetermined period. In this embodiment, for each predetermined period, it includes product manufacturing performance information for each type of product during that period, and product manufacturing performance information relating to the breakdown by type during that period. In this embodiment, the breakdown is grouped by lot, for example, and the product manufacturing performance information relating to the breakdown by type is product manufacturing performance information relating to lot. A lot is the quantity of products manufactured under the same conditions, and a lot number (lot ID), which is an identifier for identifying and distinguishing a lot, is assigned, for example, to each order. Note that one lot number may be assigned to multiple orders. The predetermined period is set in advance by the user (operator) as appropriate, for example, 10 days, 1 month, or 6 months. In this embodiment, this product manufacturing performance information is stored in the product manufacturing performance information storage unit 62 in a table format.

[0049] The product manufacturing performance information table 200a, which registers product manufacturing performance information for each product type, includes, for example, a product No. field 201a for registering the product No., a type field 202a for registering the product type of the product No. registered in the product No. field 201a, a production volume field 203a for registering the production volume of the product No. registered in the product No. field 201a during the predetermined period, and a lot-out rate field 204a for registering the lot-out rate of the product No. registered in the product No. field 201a during the predetermined period, and has a record for each product No. (product type). The product No. (product number) is an identifier (product ID) for identifying the product type and distinguishing the product type. In this embodiment, as an example, the product types are divided according to the product specifications, and therefore, the product No. is assigned according to the product type (product specifications). In this embodiment, the specifications of the product are divided by type and customer (orderer). Even if multiple orders are received at different times, if the type and customer are the same, the same product number is assigned to the multiple orders, and the products manufactured by the multiple orders are combined into one. For this reason, the target product in the target type may be one or multiple units. The type is the name of the steel sheet classified and assigned according to the composition of the steel sheet. The type may also be further classified from the viewpoint of product strength and product dimensions, which depend on the manufacturing process. For this reason, in this embodiment, the type field 202 includes a type field (type subfield) 2021a for registering the type and a customer field (customer subfield) 2022a for registering the customer. The aforementioned lot-out rate is the ratio of the second number of lot-out items to the sum of the first number of products whose manufacturing was completed within the predetermined period and the second number of lot-out items whose process ended within the predetermined period, when the products and lot-out items are of the same type (second ratio = second number / (first number + second number)).

[0050] By calculating the sum of each production quantity (each production quantity) registered in the production quantity field 203a of each record, the total quantity of each type of product manufactured at the factory during the predetermined period can be determined. In the example shown in Figure 3, some of the production quantities are omitted, but the total is 1500 [tons].

[0051] The product manufacturing performance information table 200b, which registers product manufacturing performance information for a product lot, for example, as shown in Figure 4, includes a process sequence field 211b (211b-1 to 211b-3) for registering the order of processes, an equipment field 212b (212b-1 to 212b-3) for registering the main equipment used to carry out the processes in the order registered in the process sequence field 211b, and the total amount of products manufactured during the predetermined period using the main equipment used to carry out the processes in the order registered in the process sequence field 111b (actual weight). The system includes a weight field 213b (213b-1 to 213b-3) for registering the quantity, a time field 214b (214b-1 to 214b-3) for registering the total usage time (total operating time, actual time) for manufacturing during the predetermined period for the main equipment used to carry out the processes in the order registered in the process sequence field 211b, and a process implementation period field 215b (215b-1 to 215b-3) for registering the period during which the processes in the order registered in the process sequence field 211b were carried out, with a record for each process. A product manufacturing performance information table 201b for such a product lot is provided for each lot, associated with the lot number, and further associated with the product number. Figure 4 illustrates product manufacturing performance information tables 201b-1 for the product lot associated with lot number "Lot 01" which is associated with product number "P001", product manufacturing performance information tables 201b-2 for the product lot associated with lot number "Lot 02" which is associated with product number "P001", and product manufacturing performance information tables 201b-3 for the product lot associated with lot number "Lot 03" which is associated with product number "P001".

[0052] In this embodiment, since the processes for manufacturing a product may span multiple periods, as shown in Figure 5, the product manufacturing performance information table 200b is provided with a process implementation period field 215b. Figure 5 illustrates the target period (current period), which is the period used for calculating CO2 emissions, the period one period prior to the target period (1 period prior, previous period), the period two periods prior to the target period (2 periods prior), and the period one period after the target period (next period). For example, the processes for manufacturing lot No. "Lot 01" span the 2 periods prior and 1 period prior, and the processes for manufacturing lot No. "Lot 04" span the 1 period prior and the target period. Furthermore, lot No. "Lot 04" has been completed with the execution of process 1 and process 2 respectively, and is a lot-out product. An integer value is registered in the process implementation period field 215b as information representing the period during which the process was implemented (process implementation period information). In this embodiment, the target period (current period) is represented by the integer value "0", the period one period prior is represented by the integer value "-1", the period two periods prior is represented by the integer value "-2", the period three periods prior to the target period (the period three periods prior) is represented by the integer value "-3", and so on, with each period being represented in the same manner.

[0053] In this embodiment, shipping (transportation processing) is also considered as one of the processes, and the product manufacturing performance information table 201b for a product lot has a record in the weight field 213b in which the shipment quantity (actual shipment quantity, production quantity (actual production quantity)) of the product for that lot is registered.

[0054] In this embodiment, the actual value registered in the weight field 213b in the first step is also the total amount of raw materials used to manufacture that lot of the product over the predetermined period. In this embodiment, the manufacturing load of the main equipment is represented by at least one of the amount of products manufactured by the main equipment and the operating time of the main equipment. Therefore, the manufacturing load in terms of the amount of products manufactured is registered in the weight field 213b, and the manufacturing load in terms of the operating time is registered in the time field 214b.

[0055] Each of these product manufacturing performance information tables 200a and 200b is stored in the product manufacturing performance information storage unit 62, associated with each predetermined period.

[0056] The equipment-related performance information storage unit 63 stores equipment-related performance information. The equipment-related performance information is data that, for each predetermined period, represents the total amount of each manufacturing load applied to the main equipment and each of the sub-equipment during that predetermined period, as well as the amount of each of the consumables that are consumed in connection with the operation of the main equipment and each of the sub-equipment, and which include carbon dioxide emissions. As can be seen from the example described later, the amount of consumption includes monetary consumption (expenses). The sub-equipment is equipment that is indirectly involved in the manufacturing of the product through the main equipment and is used for multiple pieces of equipment (including main equipment and sub-equipment), and is determined appropriately according to the multiple pieces of equipment. In one example, the sub-equipment is a roll polishing machine that polishes the rolls of a rolling mill, or a boiler machine that supplies steam to various pieces of equipment.

[0057] In this embodiment, this equipment-related performance information is stored in the equipment-related performance information storage unit 63 in table format. The equipment-related performance information table 300 for registering this equipment-related performance information includes, for example, as shown in Figure 6, an equipment name field 302 for registering the equipment name (name of the equipment) which is an identifier that identifies and distinguishes the equipment (main equipment and sub-equipment), an equipment classification field 301 for registering whether the equipment registered in the equipment name field 302 is main equipment or sub-equipment, a manufacturing load field 303 for registering the total amount of manufacturing load for the equipment registered in the equipment name field 302 during the predetermined period, and a consumption field 304 for registering the amount of consumption of consumables for the equipment registered in the equipment name field 302, and has a record for each piece of equipment (equipment name). The manufacturing load field 303 includes subfields for each unit of manufacturing load, and includes a weight field (weight subfield) 3031 for registering the total amount of manufacturing load expressed in weight [tons] (total amount of products manufactured by the main equipment), and a time field (time subfield) 3032 for registering the total amount of manufacturing load expressed in usage time [hrs] (total usage time by the main equipment). The consumption field 304 includes subfields for each type of consumption, and includes an energy field (energy subfield) 3041 for registering the amount of energy consumed by the operation of the equipment, and a consumables field (consumables subfield) 3042 for registering the amount of consumables used in the equipment. The energy field 3041 further comprises subfields for each type of energy, including an electricity field (electricity subfield) 30411 for registering electricity consumption [kWh], an LNG field (LNG subfield) 30412 for registering liquefied natural gas (LNG) consumption [kg], and a steam field (steam subfield) 30413 for registering steam consumption [kg]. The consumables field 3042 further comprises subfields for each type of consumable, including a chemicals field (chemicals subfield) 30421 for registering chemical consumption and a lubricating oil field (lubricating oil subfield) 30422 for registering lubricating oil consumption.

[0058] In addition, while the consumables mentioned above were energy and consumables, these are merely examples, and the appropriate items will vary depending on the type of factory and equipment. Other examples include kerosene, refractory materials, maintenance work, and industrial water.

[0059] Such equipment-related performance information tables 300 are stored in the equipment-related performance information storage unit 63, associated with each predetermined period, at predetermined intervals.

[0060] The residual emission source-related performance information storage unit 64 stores residual emission source-related performance information. The residual emission source is a CO2 emission source in the factory that emits CO2, excluding the main equipment, the auxiliary equipment if there is one, and the predetermined processing if there is one. Examples include in-plant transport equipment (e.g., cranes, trucks, forklifts, etc.) that transport items such as raw materials, manufactured goods, and finished products within the factory, equipment that emits CO2 in shared facilities that are not directly involved in the manufacture of products but can be shared (e.g., offices, welfare facilities, experimental facilities, etc.) (e.g., indoor lighting equipment, hot water supply equipment, experimental equipment, etc.), and industrial waste treatment facilities (industrial waste treatment) that process industrial waste within the factory. The predetermined processing is a process performed on the product between the time of manufacture and delivery to the customer. Examples include inspection processing to check the product (e.g., inspection processing to check whether the product meets the shipping standards), packaging processing to pack the product, and transportation processing to transport the product from the factory to the customer. The residual emission source-related performance information is data representing the amount of consumption of a residual emission source that is associated with the operation of that residual emission source and which emits carbon dioxide, for each residual emission source during a predetermined period.

[0061] In this embodiment, residual emission source-related performance information is stored in a table format in the residual emission source-related performance information storage unit 64. The residual emission source-related performance information table 400, which registers this residual emission source-related performance information, includes, for example, a name field 401 for registering the name of the residual emission source, and a consumption field 402 for registering the amount of consumption of the consumables at the residual emission source with the name registered in the name field 401, as shown in Figure 7, and has a record for each residual emission source. The consumption field 402 includes subfields for each type of consumable, and includes a power field (power subfield) 4021 for registering the amount of electricity consumption [kWh], a diesel fuel field (diesel fuel subfield) 4022 for registering the amount of diesel fuel consumption [kL], and an expense field (expense subfield) 4023 for registering expenses [thousand yen]. In this embodiment, an expense field 4023 is provided because the CO2 emissions associated with the processing of industrial waste at an industrial waste treatment facility are calculated from expenses.

[0062] Such residual emission source-related performance information tables 400 are stored in the residual emission source-related performance information storage unit 64, associated with each predetermined period.

[0063] The unit emission information storage unit 65 stores unit emission information. The unit emission information is data representing the CO2 emissions per unit (unit CO2 emissions, emission coefficient), which is a coefficient for converting actual values ​​such as the product manufacturing performance information, equipment-related performance information, and residual emission source-related performance information mentioned above into CO2 emissions.

[0064] In this embodiment, this unit emission information is stored in a unit emission information storage unit 65 in table format. The unit emission information table for registering this unit emission information is configured to include three first to third unit emission information tables 500a to 500c, as shown in Figures 8A to 8C. The unit emission information tables may be combined into one table, or there may be two or four or more tables; the number of tables is arbitrary.

[0065] The first unit emission information table 500a is a table that registers the CO2 emissions per unit of raw material (first unit CO2 emissions per unit). In this embodiment, the raw material is determined by the variety produced from the raw material, so in the first unit emission information table 500a, the first unit CO2 emissions per unit are associated with the variety. For this reason, the first unit emission information table 500a includes, for example, a variety field 501a for registering the variety and an emission coefficient field 502a for registering the first unit CO2 emissions per unit corresponding to the variety registered in the variety field 501a, and has a record for each variety. Note that associating the first unit CO2 emissions per unit with the variety is merely an example and is not limited to this; of course, the first unit CO2 emissions per unit may also be associated with the raw material (raw material name).

[0066] The second unit emission information table 500b is a table that registers various unit-based CO2 emissions (unit CO2 emissions), and in this embodiment, for example, these include unit-based CO2 emissions from consumer goods (consumer goods unit CO2 emissions) and unit-based CO2 emissions from industrial waste treatment at industrial waste treatment facilities (industrial waste treatment unit CO2 emissions). The second unit emission information table 500b includes, for example, a name field 501b for registering names (such as consumer goods names and industrial waste treatments), an emission coefficient field 503b for registering unit CO2 emissions for the names registered in the name field 501b, and a unit field 502b for registering the units of unit CO2 emissions registered in the emission coefficient field 503b, and has a record for each name.

[0067] The third unit emission information table 500c is a table that registers the CO2 emissions per unit in the predetermined processing (third unit CO2 emissions per unit), and in this embodiment, it is a table that registers the CO2 emissions per unit in the transportation processing among the predetermined processing (transportation processing unit CO2 emissions). In this embodiment, the CO2 emissions in the transportation processing are generally determined according to the transportation distance, the total weight of the products being transported, and the means of transportation, etc., but in this embodiment, these are determined by the customer, and in the third unit emission information table 500c, the transportation processing unit CO2 emissions are associated with the customer. For this reason, the third unit emission information table 500a includes, for example, a customer field 501c for registering customers and an emission coefficient field 502c for registering the transportation processing unit CO2 emissions corresponding to the customer registered in the customer field 501c, and has a record for each customer. Note that associating the transportation processing unit CO2 emissions with customers is merely an example and is not limited to this.

[0068] The auxiliary equipment correspondence information storage unit 66 stores auxiliary equipment correspondence information. As described above, auxiliary equipment is equipment that is indirectly involved in the manufacturing of the product via the main equipment and is used for multiple pieces of equipment (including the main equipment and other auxiliary equipment for the said auxiliary equipment). Therefore, the auxiliary equipment correspondence information is data that represents the equipment that uses the said auxiliary equipment.

[0069] This auxiliary equipment correspondence information is stored in the auxiliary equipment correspondence information storage unit 66 in a two-dimensional matrix format. The auxiliary equipment correspondence information matrix 600 for registering this auxiliary equipment correspondence information includes, for example, columns 601-1 to 601-11 for registering the names of the equipment that share the auxiliary equipment, and rows 602-1 and 602-2 for registering the names of the auxiliary equipment, as shown in Figure 9. In each column where the columns 601-1 to 601-11 of the equipment and the rows 602-1 and 602- of the auxiliary equipment intersect, a flag "1" is registered to indicate that the equipment uses the auxiliary equipment, and the column is left blank to indicate that the equipment does not use the auxiliary equipment. Alternatively, a flag "0" may be registered to indicate that the equipment does not use the auxiliary equipment. In the example shown in Figure 9, the three rolling mills 1, 2, and 3 share the roll polishing equipment of the auxiliary equipment.

[0070] Various actual values ​​for determining the CO2 emissions of target products of a target type are stored in the storage unit 6 in advance before the calculation of CO2 emissions for target products of a target type over a predetermined period begins. The actual values ​​may be input from the input unit 1, input via the IF unit 3 from a storage medium that stores the actual values ​​(e.g., a USB memory stick or SD card (registered trademark), etc.), input via the drive device and IF unit 3 from a recording medium that records the actual values ​​(e.g., a CD-R or DVD-R, etc.), input via the communication network and IF unit 3 from a management server device that manages the actual values, or collected and input via the communication network and IF unit 3 from the main equipment or sub-equipment.

[0071] In this embodiment, the CO2 emissions per unit in the main equipment (second unit CO2 emissions per unit) and the CO2 emissions per unit product in the residual emission source (fourth unit CO2 emissions per unit product) are calculated as described later, but other various unit CO2 emissions are given and stored in the unit emission information storage unit 65 in advance. Note that the CO2 emissions per unit in the main equipment include the CO2 emissions from the auxiliary equipment, as described later.

[0072] Figure 10 is a diagram illustrating, as an example, the calculation methods for the total process CO2 emissions related to the process carried out in the main equipment and the total auxiliary equipment CO2 emissions related to the auxiliary equipment. Figure 11 is a diagram illustrating, as an example, the calculation method for the CO2 emission allocation related to the main equipment in which the auxiliary equipment is used. Figure 12 is a diagram illustrating, as an example, the calculation method for the unadjusted second unit CO2 emissions per unit in the main equipment. Figure 13 is a diagram illustrating, as an example, the calculation method for the second unit CO2 emissions per unit in the main equipment. Figure 14 is a diagram illustrating, as an example, the second unit CO2 emissions per unit in the main equipment for a predetermined period. Figure 15 is a diagram illustrating, as an example, the calculation method for the fourth unit CO2 emissions per unit product in the residual emission source. Figure 16 is a diagram illustrating, as an example, an example of the output of each calculation result related to lot-out items. Figure 17 is a diagram illustrating, as an example, an example of the output of each calculation result.

[0073] Returning to Figure 1, the control processing unit 4 is a circuit for determining the CO2 emissions for a target product of a target type by controlling each of the parts 1 to 3 and 6 of the carbon dioxide emission calculation device S according to the function of each part. The control processing unit 4 is configured, for example, with a CPU (Central Processing Unit) and its peripheral circuits. When the control processing program is executed, the control processing unit 4 is functionally configured to include the control unit 41, raw material emission calculation unit 42, main equipment unit emission calculation unit 43, process emission calculation unit 44, emission allocation calculation unit 45, auxiliary processing emission calculation unit 46, first residual emission calculation unit 47, second residual emission calculation unit 48, target product emission calculation unit 49, emission addition calculation unit 50, and cumulative unallocated amount calculation unit 51.

[0074] The control unit 41 controls each of the parts 1 to 3 and 6 of the carbon dioxide emission calculation device S according to the function of each part, and is in charge of the overall control of the carbon dioxide emission calculation device S.

[0075] The raw material emission calculation unit 42 calculates the total amount of raw material CO2 emissions related to the manufacture of the target product of the target type, based on a given first unit CO2 emission per unit of raw material used in the manufacture of the target product of the target type and the total amount of raw material used in the target product of the target type.

[0076] For example, when determining the total amount of CO2 emissions from raw materials for product No. "P001" as a target product of the target type, in this embodiment, as described above, the amount of raw materials used in the target product of the target type manufactured during the predetermined period is registered in the product manufacturing performance information table 200b for each lot. For example, if the product manufacturing performance information tables 201b-1 to 201b-3 shown in Figure 4 are tables that register the actual values ​​corresponding to the target period, the raw material emission calculation unit 42 first retrieves (reads) the actual values ​​"13" [ton], "5" [ton], and "26" [ton] registered in each weight field 213b-1 to 213b-3 for each lot of product No. "P001" stored in the product manufacturing performance information storage unit 62, and calculates the sum of these "44" (=13+5+26) [ton] as the total amount of raw materials. Here, the lot with lot number "Lot 02" is determined to be a lot-out item because the manufacturing load from the third process onward is 0, and is excluded from the total amount of raw materials used in the target product of the target type manufactured during the aforementioned period. For this reason, in the example shown in Figure 4, the process discharge calculation unit 44 retrieves the actual values ​​"13" [ton] and "26" [ton] registered in the weight fields 213b-1 and 213b-3 respectively for each lot of product with product number "P001" stored in the product manufacturing performance information storage unit 62, and calculates their sum "39" (=13+26) [ton] as the total amount of raw materials.

[0077] Here, the raw material discharge calculation unit 42 may calculate the lot-out rate for product No. "P001" and register this calculated lot-out rate in the lot-out rate field 204a of the product manufacturing performance information table 200a stored in the product manufacturing performance information storage unit 62. In the example shown in Figure 4, the lot-out rate "33" (=1 / (2+1))[%] is calculated from the first quantity "2" of product No. "P001" and the second quantity "1" of lot-out items for product No. "P001", and is registered in the product manufacturing performance information table 200a.

[0078] Next, as described above in this embodiment, the first unit CO2 emission per unit of raw material is associated with the variety and registered in the first unit emission information table 500a. Therefore, the raw material emission calculation unit 42 searches for and selects a record from the product manufacturing performance information table 200a stored in the product manufacturing performance information storage unit 62 that registers "P001" in the product No. field 201a, and retrieves the variety "H1" registered in the variety field 2021a of the selected record. Next, the raw material emission calculation unit 42 searches for and selects a record from the first unit emission information table 500a stored in the unit emission information storage unit 65 that registers "H1" in the variety field 501a, and retrieves the first unit CO2 emission per unit of raw material "1.2" [tCO2 / ton] registered in the emission coefficient field 502a of the selected record. The raw material emission calculation unit 42 then calculates the total amount of raw material CO2 emissions "46.8" (=1.2 × 39) [tCO2] for the manufacture of the target product of the target type by multiplying the first unit CO2 emission amount per unit of raw material "1.2" [tCO2 / ton] by the total amount of raw material "39" [ton] used in the target product of the target type manufactured during the target period.

[0079] The emission allocation calculation unit 45 determines the CO2 emission allocation amount for each of the multiple facilities that use the auxiliary equipment by allocating the total amount of CO2 emissions from the auxiliary equipment during the period to each of the multiple facilities that use the auxiliary equipment at a predetermined rate. In this embodiment, the emission allocation calculation unit 45 determines the total amount of CO2 emissions from the auxiliary equipment during the period based on the total amount of consumption associated with the operation of the auxiliary equipment during that period, which includes the emission of carbon dioxide, and the amount of CO2 emissions per unit of consumption (the fifth unit CO2 emissions per unit). The predetermined rate may, for example, be set appropriately in advance and stored in the storage unit 6, but in this embodiment, as described later, it is determined (calculated) from actual values. The predetermined rate is, for example, the usage rate of the products manufactured by the auxiliary equipment in each of the multiple facilities that use the auxiliary equipment. Alternatively, for example, the predetermined ratio is the ratio of the production volume of each product manufactured in each of the multiple facilities in which the auxiliary equipment is used.

[0080] In the example shown in Figure 6, the auxiliary equipment consists of a roll polishing system and a boiler system, so these will be explained in more detail.

[0081] In the case of boiler equipment, the emission allocation calculation unit 45 first extracts the amount of consumption of consumables associated with the operation of the boiler equipment from the equipment-related performance information stored in the equipment-related performance information storage unit 63. In the example shown in Figure 6, the emission allocation calculation unit 45 first searches and selects each record in the equipment-related performance information table 300 stored in the equipment-related performance information storage unit 63 that has the equipment name "boiler" registered in the equipment name field 302, and extracts the amount of consumption of consumables registered in the consumption field 304 of each selected record. For example, from the "boiler" record, "2000" [kWh] is extracted as the amount of electricity consumed, and "2000" [kg] is extracted as the amount of LNG consumed. Next, the emission allocation calculation unit 45 extracts the 5th unit CO2 emission per unit of consumables associated with the operation of the boiler equipment from the unit emission information stored in the unit emission information storage unit 65. In the example shown in Figure 8B, the emission allocation calculation unit 45 searches for and selects records from the second unit emission information table 500b stored in the unit emission information storage unit 65 that register "electricity" and "LNG" respectively in the name field 501b, and retrieves the fifth unit CO2 emissions per unit of electricity and LNG, as well as their respective units, from the emission coefficient field 503b and unit field 502b, respectively, in each of the selected records. The fifth unit CO2 emissions for electricity (electricity unit CO2 emissions) of "0.0005" [tCO2 / kWh] are retrieved, and the fifth unit CO2 emissions for LNG (LNG unit CO2 emissions) of "0.004" [tCO2 / kg] are retrieved.Next, as shown in Figure 10, the emission allocation calculation unit 45 calculates the total amount of CO2 emissions related to electricity during the period, "1" [tCO2], by multiplying the electricity consumption amount "2000" [kWh] by its CO2 emission per unit of electricity, "0.0005" [tCO2 / kWh]. It also calculates the total amount of CO2 emissions related to LNG during the period, "8" [tCO2], by multiplying the LNG consumption amount "2000" [kg] by its CO2 emission per unit of LNG, "0.004" [tCO2 / kg]. By summing these amounts, it calculates the total amount of CO2 emissions from the auxiliary equipment (boiler equipment CO2 emissions) for the auxiliary equipment boiler equipment during the predetermined period, "10" [tCO2]. The sum of the total CO2 emissions from electricity ("1" [tCO2]) and the total CO2 emissions from LNG ("8" [tCO2]) is "9" [tCO2]. However, for the sake of explanation described later, the total CO2 emissions from the consuming goods ("1" [tCO2]), which are not shown in the diagram, are added, and the total CO2 emissions from the boiler equipment are given as "10" [tCO2].

[0082] In the case where the auxiliary equipment is boiler equipment, the predetermined ratio used is the usage ratio (usage rate) of the products manufactured by the auxiliary equipment in each of the multiple pieces of equipment in which the auxiliary equipment is used. More specifically, the discharge allocation calculation unit 45 first retrieves the equipment that uses the steam manufactured by the boiler equipment from the auxiliary equipment correspondence information (in the example shown in Figure 9, the auxiliary equipment correspondence information matrix 600) stored in the auxiliary equipment correspondence information storage unit 66. In the example shown in Figure 9, the main equipment named "Smelting and Casting 1", the main equipment named "Smelting and Casting 2", the main equipment named "Rolling 1", the main equipment named "Rolling 2", the main equipment named "Rolling 3", the main equipment named "Heat Treatment", the main equipment named "Plating", the main equipment named "Cutting 2", and the auxiliary equipment named "Roll Polishing", all of which have a flag of "1" registered. Next, the discharge allocation calculation unit 45 retrieves the amount of steam used in equipment that uses steam produced by the boiler equipment from the equipment-related performance information stored in the equipment-related performance information storage unit 63. In the example shown in Figure 6, the discharge allocation calculation unit 45 searches and selects records from the equipment-related performance information table 300 stored in the equipment-related performance information storage unit 63 that register "Smelting and Casting 1", "Smelting and Casting 2", "Rolling 1", "Rolling 2", "Rolling 3", "Heat Treatment", "Plating", "Cutting 2", and "Roll Polishing" respectively in the equipment name field 302, and retrieves the respective steam usage amounts "0" [kg], "0" [kg], "400" [kg], "1200" [kg], "800" [kg], "400" [kg], "800" [kg], "0" [kg], and "400" [kg] from the steam field 30413 of each of these records. Then, as shown in Figure 11A, the emission allocation calculation unit 45 determines the steam usage ratio (steam usage rate) of the boiler equipment from the respective amounts of steam extracted, and multiplies this determined usage ratio (steam usage rate) by the total amount of CO2 emissions from the boiler equipment "10" [tCO2] to determine the CO2 emission allocation for each of the multiple facilities that use the boiler equipment. For example, for the main equipment named "Rolling 1", the steam usage ratio of 0.1 is multiplied by the total amount of CO2 emissions from the boiler equipment "10" [tCO2], and 1 [tCO2] is obtained as its CO2 emission allocation.For example, for the auxiliary equipment named "roll polishing," the steam usage ratio of 0.1 is multiplied by the total amount of CO2 emissions from the boiler equipment, "10" [tCO2], and 1 [tCO2] is obtained as the CO2 emission allocation.

[0083] In the case of roll polishing equipment, the discharge allocation calculation unit 45 first extracts the amount of consumption of materials associated with the operation of the roll polishing equipment from the equipment-related performance information stored in the equipment-related performance information storage unit 63. In the example shown in Figure 6, the discharge allocation calculation unit 45 first searches and selects each record in the equipment-related performance information table 300 stored in the equipment-related performance information storage unit 63 that has the equipment name "roll polishing" registered in the equipment name field 302, and extracts the amount of consumption of materials registered in the consumption field 304 of each selected record. For example, from the "roll polishing" record, "10000" [kWh] is extracted as the amount of electricity consumed, "400" [kg] as the amount of steam consumed, and 5 [kL] as the amount of lubricating oil consumed. Next, the discharge allocation calculation unit 45 extracts the 5th unit CO2 emission per unit of materials associated with the operation of the roll polishing equipment from the unit emission information stored in the unit emission information storage unit 65. As described above, the emission allocation calculation unit 45 has already determined the total amount of CO2 emissions related to steam, "1" [tCO2], and therefore extracts the fifth unit CO2 emissions for "electricity" and the fifth unit CO2 emissions for "lubricating oil". In the example shown in Figure 8B, the emission allocation calculation unit 45 searches and selects the records in the second unit emission information table 500b stored in the unit emission information storage unit 65 that register "electricity" and "lubricating oil" respectively in the name field 501b, and extracts the fifth unit CO2 emissions per unit of electricity and lubricating oil, as well as their respective units, registered in the emission coefficient field 503b and the unit field 502b, respectively, for each of these selected records. The fifth unit CO2 emissions for electricity (electricity unit CO2 emissions) "0.0005" [tCO2 / kWh] are extracted, and the fifth unit CO2 emissions for lubricating oil (lubricating oil unit CO2 emissions) "0.8" [tCO2 / kL] are extracted.Next, as shown in Figure 10, the emission allocation calculation unit 45 calculates the total amount of CO2 emissions related to electricity for the predetermined period, "5" [tCO2], by multiplying the electricity consumption amount "10000" [kWh] by its CO2 emission amount per unit of electricity, "0.0005" [tCO2 / kWh]. It also calculates the total amount of CO2 emissions related to lubricating oil for the predetermined period, "4" [tCO2], by multiplying the lubricating oil consumption amount "5" [kL] by its CO2 emission amount per unit of lubricating oil, "0.8" [tCO2 / kL]. The unit then calculates the sum of these amounts and adds the aforementioned total amount of CO2 emissions related to steam, "1" [tCO2], to this sum to obtain the total amount of CO2 emissions from the auxiliary equipment (CO2 emissions from the roll polishing equipment) for the auxiliary equipment for the predetermined period, "10" [tCO2].

[0084] In the case where the auxiliary equipment is roll polishing equipment, the predetermined ratio used is the ratio of the production volume of each product produced by each of the multiple pieces of equipment in which the auxiliary equipment is used. In the example shown in Figure 11B, the production volume ratio is expressed in weight, but is not limited to this and may be set appropriately according to the type of product, for example, or expressed in the volume of the processed product. More specifically, the discharge allocation calculation unit 45 first retrieves the equipment that uses the roll polishing equipment from the auxiliary equipment correspondence information (in the example shown in Figure 9, the auxiliary equipment correspondence information matrix 600) stored in the auxiliary equipment correspondence information storage unit 66. In the example shown in Figure 9, the main equipment with the equipment name "Rolling 1", the main equipment with the equipment name "Rolling 2", and the main equipment with the equipment name "Rolling 3", which have the flag "1" registered, are retrieved. Next, the discharge allocation calculation unit 45 retrieves the production volume of the products in the equipment that uses the roll polishing equipment from the equipment-related performance information stored in the equipment-related performance information storage unit 63. In the example shown in Figure 6, the emission allocation calculation unit 45 searches and selects records from the equipment-related performance information table 300 stored in the equipment-related performance information storage unit 63 that register "Rolling 1", "Rolling 2", and "Rolling 3" respectively in the equipment name field 302, and retrieves the respective weights "600" [ton], "2000" [ton], and "1400" [ton] registered in the weight field 3031 of each of these records. Then, as shown in Figure 11B, the emission allocation calculation unit 45 calculates the proportion of the manufactured product, in this case the weight ratio, from these retrieved weights, and multiplies this calculated proportion of the manufactured product, the weight ratio, by the total amount of CO2 emissions from the roll polishing equipment, "10" [tCO2], to determine the CO2 emission allocation amount for each of the multiple facilities that use the roll polishing equipment. For example, for the main equipment named "Rolling Mill 1," the weight ratio of 0.15 is multiplied by the total amount of CO2 emissions from the roll polishing equipment, "10" [tCO2], to determine the CO2 emission allocation of 1.5 [tCO2].

[0085] In this embodiment, of the total amount of CO2 emissions from the boiler equipment, "1" [tCO2], the total amount of CO2 emissions related to the steam used in the roll polishing equipment is allocated to the main equipment as described later, via the CO2 emission allocation amounts for each piece of equipment in which the roll polishing equipment is used.

[0086] The CO2 emission allocation calculation unit 45 performs this CO2 emission allocation calculation at predetermined intervals to determine the CO2 emission allocation amount for the equipment using the auxiliary equipment for each predetermined interval.

[0087] The main equipment unit emission calculation unit 43 calculates, for each predetermined period, the unit-level second unit CO2 emission at the main equipment for that period, based on the unit-level unadjusted second unit CO2 emission at the main equipment for periods prior to that period, for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type.

[0088] The main equipment unit emission calculation unit 43 then determines the unadjusted second unit CO2 emission per unit based on the total amount of manufacturing load on the main equipment during a predetermined period and the total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load. For example, the total amount of manufacturing load is represented by the total amount of products manufactured by the main equipment, and the main equipment unit emission calculation unit 43 determines the unadjusted second unit CO2 emission per unit based on the total amount of products manufactured by the main equipment during the predetermined period and the total amount of CO2 emissions from the main equipment relative to the production of the total amount of products. Alternatively, for example, the total amount of manufacturing load is represented by the total operating time of the main equipment, and the main equipment unit emission calculation unit 43 determines the unadjusted second unit CO2 emission per unit based on the total operating time on the main equipment during the predetermined period and the total amount of CO2 emissions from the main equipment relative to the use during the total operating time.

[0089] The main equipment unit emission calculation unit 43 calculates the total amount of CO2 emissions related to the main equipment relative to the total amount of the manufacturing load incurred by the main equipment during manufacturing over a predetermined period, based on the total amount of the consumption associated with the operation of the main equipment that includes carbon dioxide emissions and the fifth unit CO2 emission per unit of the consumption.

[0090] In this embodiment, when the main equipment unit emission calculation unit 43 determines the second unit CO2 emission per unit (unadjusted second unit CO2 emission per unit) of the main equipment, if the main equipment has the aforementioned sub-equipment, the main equipment calculates a new total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load by adding the CO2 emission allocation amount for the equipment corresponding to the main equipment during that period, which was determined by the emission allocation calculation unit 45, to the total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load. Based on the newly determined total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load, the main equipment calculates the unadjusted second unit CO2 emission per unit for that period.

[0091] More specifically, the main equipment unit emission calculation unit 43 calculates the unadjusted second unit CO2 emission per unit at a predetermined main equipment for multiple periods prior to the predetermined period, and calculates the second unit CO2 emission per unit at the main equipment for the predetermined period by weighting the unadjusted second unit CO2 emission per unit at the main equipment for multiple periods prior to the predetermined period, and calculates the second unit CO2 emission per unit at the main equipment for the predetermined period for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type.

[0092] First, the unadjusted CO2 emissions per unit are calculated as follows:

[0093] For example, if product No. "P001" is a target product of a target type, in order to determine the multiple processes involved in manufacturing the target product of the target type, the main equipment unit discharge calculation unit 43 first retrieves all the processes involved in manufacturing product No. "P001" from the manufacturing process information table 100a for product No. "P001" stored in the manufacturing process information storage unit 61. In the example shown in Figure 2A, the first process performed by the main equipment named "Melting and Casting 1", the second process performed by the main equipment named "Rolling 1", the third process performed by the main equipment named "Rolling 2", the fourth process performed by the main equipment named "Heat Treatment", and the fifth process performed by the main equipment named "Cutting 1" are retrieved. Next, the main equipment unit emission calculation unit 43 retrieves the amount of consumables consumed by each main equipment corresponding to each of the first to fifth processes from the equipment-related performance information stored in the equipment-related performance information storage unit 63. In the example shown in Figures 2A and 6, the main equipment unit emission calculation unit 43 searches and selects records from the equipment-related performance information table 300 stored in the equipment-related performance information storage unit 63 that register the equipment names "Melting and Casting 1", "Rolling 1", "Rolling 2", "Heat Treatment", and "Cutting 1" for each main equipment used in each of the first to fifth processes in the equipment name field 302, and retrieves the amount of each consumable registered in the consumption field 304 of each selected record. For example, from the record for "Melting and Casting 1", "80000" [kg] is retrieved as the amount of LNG consumed and "6000" [thousand yen] as the amount of chemicals consumed. Next, the main equipment unit emission calculation unit 43 extracts the fifth unit CO2 emission per unit of consumption associated with the operation of the main equipment from the unit emission information stored in the unit emission information storage unit 65.In the example shown in Figure 8B, the main equipment unit emission calculation unit 43 searches for and selects records from the second unit emission information table 500b stored in the unit emission information storage unit 65 that register "LNG" and "chemicals" respectively in the name field 501b, and retrieves the fifth unit CO2 emission amount per unit of LNG and chemicals, as well as their respective units, from the emission coefficient field 503b and unit field 502b, respectively, in each of the selected records. The fifth unit CO2 emission amount for LNG (LNG unit CO2 emission amount) of "0.004" [tCO2 / kg] is retrieved, and the fifth unit CO2 emission amount for chemicals (chemical unit CO2 emission amount) of "0.01" [tCO2 / thousand yen] is retrieved. Next, as shown in Figure 10, the main equipment unit emission calculation unit 43 calculates the total amount of CO2 emissions related to LNG during the predetermined period, "320" [tCO2], by multiplying the LNG consumption amount "80000" [kg] by its LNG unit CO2 emission amount "0.004" [tCO2 / kg], and calculates the total amount of CO2 emissions related to chemicals during the predetermined period, "60" [tCO2], by multiplying the chemical consumption amount "6000" [thousand yen] by its chemical unit CO2 emission amount "0.01" [tCO2 / thousand yen], and then calculates the sum of these to determine the total amount of CO2 emissions related to the main equipment of equipment name "Melting and Casting 1" for the production of the total amount of products manufactured by the main equipment of equipment name "Melting and Casting 1" during the predetermined period, "420" [tCO2]. Similarly, for each main piece of equipment named "Rolling 1", "Rolling 2", "Heat Treatment", and "Cutting 1", the total amount of CO2 emissions from that main piece of equipment relative to the total amount of products manufactured by that main piece of equipment during the predetermined period is calculated as "48" [tCO2], "60" [tCO2], "48" [tCO2], and "8" [tCO2], respectively.

[0094] Here, if there is a sub-equipment in relation to the main equipment, such as the main equipment named "Rolling Mill 1", the main equipment unit emission calculation unit 43 calculates a new total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load by adding the CO2 emission allocation amount for the equipment corresponding to the main equipment, which was determined by the emission allocation amount calculation unit 45 as described above, to the total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load. For example, in the case of the main equipment named "Rolling Mill 1", as shown in Figure 10, the main equipment unit emission calculation unit 43 calculates the total amount of CO2 emissions related to electricity during the predetermined period, "25" [tCO2], by multiplying the electricity consumption amount "50000" [kWh] by its electricity unit CO2 emission amount "0.0005" [tCO2 / kWh], and calculates the total amount of CO2 emissions related to lubricating oil during the predetermined period, "4" [tCO2], by multiplying the lubricating oil consumption amount "5" [kL] by its lubricating oil unit CO2 emission amount "0.8" [tCO2 / kL], and by calculating the sum of these, it calculates the total amount of CO2 emissions related to the main equipment named "Rolling Mill 1" for the main equipment named "Rolling Mill 1" in relation to the total amount of manufacturing load incurred during manufacturing during the predetermined period, "45.5" [tCO2]. The sum of the total CO2 emissions related to electricity ("25" [tCO2]) and the total CO2 emissions related to lubricating oil ("4" [tCO2]) is "29" [tCO2]. However, for the sake of explanation, the total CO2 emissions related to the consuming materials ("16.5" [tCO2]), which are not shown in the diagram, are added, and the total CO2 emissions related to the main equipment of the facility named "Rolling Mill 1" is given as "45.5" [tCO2]. Furthermore, as shown in Figure 12, the main equipment unit emission calculation unit 43 adds to the total amount of CO2 emissions "45.5" [tCO2] for the main equipment named "Rolling Mill 1" that the main equipment in question has been assigned CO2 emission amounts for the equipment corresponding to the main equipment, which were determined by the emission allocation calculation unit 45: "1" [tCO2] for the boiler equipment and "1.5" [tCO2] for the roll polishing equipment. This adds to the total amount of CO2 emissions "48" [tCO2] for the main equipment named "Rolling Mill 1".

[0095] Next, the main equipment unit emission calculation unit 43 retrieves the total amount of manufacturing load applied to each main equipment corresponding to each of the first to fifth processes from the equipment-related performance information stored in the equipment-related performance information storage unit 63 during the predetermined manufacturing period. In the example shown in Figures 2A and 6, the main equipment unit emission calculation unit 43 searches and selects records from the equipment-related performance information table 300 stored in the equipment-related performance information storage unit 63 that register the equipment names "Melting and Casting 1", "Rolling 1", "Rolling 2", "Heat Treatment", and "Cutting 1" for each main equipment used in each of the first to fifth processes in the equipment name field 302, and retrieves the total amount of each manufacturing load registered in the manufacturing load field 303 of each of the selected records. For example, from the record for the equipment name "Melting and Casting 1", "1200" [tons] is retrieved as the total amount of manufactured goods. For example, from the record for the equipment named "Rolling Mill 1," the total amount of manufactured goods is extracted as "600" [tons], and the total usage time is extracted as "120" [hrs].

[0096] Then, the main equipment unit emission calculation unit 43 calculates, for each main equipment corresponding to each of the first to fifth processes, the unadjusted second unit CO2 emission per unit of the main equipment, based on the total amount of manufacturing load applied to the main equipment during the predetermined manufacturing period, as determined above, and the total amount of CO2 emissions from the main equipment relative to the total amount of manufacturing load, as determined above. For example, as shown in Figure 12, the main equipment unit emission calculation unit 43 calculates the unadjusted second unit CO2 emission per unit (unadjusted unit CO2 emission for melting casting 1) "0.35" [tCO2 / ton] for the main equipment named "melting casting 1" by dividing the total amount of CO2 emissions "420" [tCO2] for the main equipment named "melting casting 1" by the total amount of manufactured goods "1200" [ton], which represents the total amount of manufacturing load incurred in manufacturing for the main equipment named "melting casting 1" during the predetermined period (420 / 1200 = 0.35). For example, the main equipment unit emission calculation unit 43 calculates the unadjusted second unit CO2 emission amount per unit (unadjusted unit CO2 emission amount for Rolling 1) "0.08" [tCO2 / ton] and "0.4" [tCO2 / hrs] for the main equipment named "Rolling 1" by dividing the total amount of CO2 emissions "48" [tCO2] for the main equipment named "Rolling 1" by the total amount of manufactured goods "600" [ton] and total usage time "120" [hrs], respectively, as the total amount of manufacturing load incurred in manufacturing for the main equipment named "Rolling 1" during the predetermined period (Rolling 1 unadjusted unit CO2 emission amount) "0.08" [tCO2 / ton] and "0.4" [tCO2 / hrs], respectively (48 / 600=0.08, 48 / 120=0.4). Similarly, for each main piece of equipment named "Rolling 2," "Heat Treatment," and "Cutting 1," the CO2 emissions of the second unit can be determined as follows: "0.03" [tCO2 / ton], "0.3" [tCO2 / hrs], "0.03" [tCO2 / ton], and "0.01" [tCO2 / ton].

[0097] As mentioned above, the total amount of manufactured goods ("600" [tons]) and the total operating time ("120" [hrs]) may be extracted as the total manufacturing load for the main equipment named "Rolling Mill 1," and the unadjusted second unit CO2 emissions for each unit ("tCO2 / ton," "tCO2 / hrs") may be calculated. Alternatively, only one of these may be extracted to be used as the second unit CO2 emissions per unit for the main equipment named "Rolling Mill 1," and the unadjusted second unit CO2 emissions for that unit may be calculated. For example, the total operating time ("120" [hrs]) may be extracted as the total manufacturing load for the main equipment named "Rolling Mill 1," and only the unadjusted unit CO2 emissions ("0.4" [tCO2 / hrs]) for molten casting 1 in that main equipment named "Rolling Mill 1" may be calculated. The user (operator) may pre-set which of the second unit CO2 emissions for each unit ("tCO2 / ton," "tCO2 / hrs") to use. For example, the carbon dioxide emission calculation device S receives input from the input unit 1 and sets the main equipment unit emission calculation unit 43, which then calculates the second unit CO2 emission in units corresponding to this setting.

[0098] For convenience, Figures 10 to 12 also include data for all equipment other than the main equipment named "Smelting and Casting 1," "Rolling 1," "Rolling 2," "Heat Treatment," and "Cutting 1," as well as the auxiliary equipment named "Roll Polishing" and "Boiler."

[0099] Next, the second unit CO2 emission q0 per unit can be calculated as follows:

[0100] Let the period n periods prior to the current period be denoted as the n-period prior period, let N be the number of periods prior to the current period (n=1 to N), and let q be the unadjusted second unit CO2 emission per unit of the main equipment during the n-period prior period. n Let q be the unadjusted second unit CO2 emissions per unit in the main facility during the period prior to period n. n The weight for t n Therefore, the unit-level CO2 emission q0 of the second unit in the main facility during that period is equal to the unit-level CO2 emission q of the main facility before adjustment for each period n prior to that period. n It is considered a weighted average and is defined by the following equation 1. Formula 1; q0 = Σt n ×q n However, Σ is an operator for obtaining the sum with respect to n.

[0101] Here, the weight (moving average weight) t n is defined by the following Formulas 2 to 4. Formula 2; t n = s n / Σs n Formula 3; s n = r n / (ave - q n ) / σ Formula 4; r n = exp(-α × n) However, ave is the average value of q n and σ is the standard deviation of q n . The parameter α is the attenuation coefficient of the weight over time. The parameter α is set appropriately in advance. The first weight r n represents the degree of influence over time, and the second weight s n encompasses the first weight r n and represents the degree of influence due to the error (deviation) of q n .

[0102] Figure 13 shows an example of calculating the second unit CO2 emission q0 per unit. In the example shown in Figure 13, N=5 and α=0.5, and the unadjusted second unit CO2 emission q1 to q5 per unit for main facility 1 during the period 1 to 5 periods prior are 0.35, 0.33, 0.42, 0.28, and 0.33, respectively. In this case, the first weights r1 to r5 for the period one to five periods prior are calculated to be 0.61, 0.37, 0.22, 0.14, and 0.08, respectively. The second weights s1 to s5 for the period one to five periods prior are calculated to be 3.84, 1.55, 0.15, 0.11, and 0.35, respectively. The moving average weights t1 to t5 for the period one to five periods prior are calculated to be 0.64, 0.26, 0.02, 0.02, and 0.66, respectively. The unit-to-unit second CO2 emission q0 of the main facility during that period is calculated to be 0.34. Figure 13 also shows the unit-to-unit second CO2 emission q1 to q5 of the main facility 1 for the period one to five periods prior, which are 0.6, 0.35, 0.33, 0.34, and 0.34, respectively.

[0103] The main equipment unit emission calculation unit 43 performs such calculations at predetermined intervals to determine the unit-level CO2 emission for each main equipment during each period. An example of the unit-level CO2 emission for each main equipment during the current period or up to five periods prior, as determined in this way, is shown in Figure 14. Furthermore, Figure 14 shows not only the second unit CO2 emissions for each process in the manufacturing of product No. "P001"—the first process carried out by the main equipment named "Melting and Casting 1," the second process carried out by the main equipment named "Rolling 1," the third process carried out by the main equipment named "Rolling 2," the fourth process carried out by the main equipment named "Heat Treatment," and the fifth process carried out by the main equipment named "Cutting 1"—but also, for the sake of explanation, the second unit CO2 emissions for each process carried out by the main equipment named "Melting and Casting 2," the main equipment named "Rolling 3," the main equipment named "Plating," and the main equipment named "Cutting 2." In addition, the bottom row of Figure 14 also shows the fourth unit CO2 emissions per unit product for each predetermined period, which are calculated by the first residual emission calculation unit 47 as described later.

[0104] Returning to Figure 1, the process emission calculation unit 44 calculates the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the unit-level CO2 emissions per second unit in the main equipment calculated by the main equipment unit emission calculation unit 43 and the total amount of manufacturing load on the main equipment for the manufacture of the target product of the target type. If the total amount of manufacturing load is expressed as the total amount of products manufactured by the main equipment, the process emission calculation unit 44 calculates the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the unit-level CO2 emissions per second unit in the main equipment calculated by the main equipment unit emission calculation unit 43 and the total amount of products manufactured by the main equipment for the manufacture of the target product of the target type. If the total amount of the manufacturing load is expressed as the total usage time of the main equipment, the process emission calculation unit 44 calculates the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the second unit CO2 emissions per unit of the main equipment calculated by the main equipment unit emission calculation unit and the total usage time of the main equipment for the manufacture of the target product of the target type.

[0105] For example, in the example shown in Figure 4, if product No. "P001" is a target product of the target type, the process emission calculation unit 44 first retrieves each actual value for each process, along with the period during which the process was carried out, from each of the product manufacturing performance information tables 201b-1 to 201b-3 for each lot of product No. "P001" stored in the product manufacturing performance information storage unit 62, and calculates the total amount of manufacturing load at each process for the target product of the target type for each period during which the process was carried out. Here, as described above, lot No. "Lot 02" is determined to be a lot-out product because the manufacturing load from the third process onward is 0, and is excluded from the total amount of manufacturing load at each process for the target product of the target type calculated for each period during which the process was carried out. Therefore, in the example shown in Figure 4, the process emission calculation unit 44 retrieves each actual value for each process, along with the period during which the process was carried out, from the product manufacturing performance information tables 201b-1 and 201b-3 for each lot of product No. "P001" stored in the product manufacturing performance information storage unit 62, and calculates the total amount of manufacturing load for each process in the target product of the target type for each period during which the process was carried out. For example, the first process performed on the main equipment named "Melting Casting 1" for lot No. "Lot 01" was performed in the period two years prior (process implementation period information "-2"), and the first process performed on the main equipment named "Melting Casting 1" for lot No. "Lot 03" was performed in the period one year prior (process implementation period information "-1"). Therefore, the total manufacturing load for the first process performed on the main equipment named "Melting Casting 1" in the period two years prior was "13" [tons], and the total manufacturing load for the first process performed on the main equipment named "Melting Casting 1" in the period one year prior was "26" [tons]. Furthermore, the third process performed on the main equipment named "Rolling 2" for lot No. "Lot 01" was performed in the previous period (process implementation period information "-1"), and the third process performed on the main equipment named "Rolling 2" for lot No. "Lot 03" was also performed in the previous period (process implementation period information "-1"). Therefore, the sum of these is "33" (=11+22) [tons], and the total amount of manufacturing load in the third process performed on the main equipment named "Rolling 2" in the previous period is "33" [tons].

[0106] In the above description, the raw material discharge calculation unit 42 calculated the lot-out rate and registered it in the product manufacturing performance information table 200a, but the process discharge calculation unit 44 may also calculate the lot-out rate and register it in the product manufacturing performance information table 200a.

[0107] Next, the process emission calculation unit 44 calculates the process CO2 emissions for the process performed on the main equipment for the production of the target product of the target type by multiplying the unit amount of second CO2 emissions per unit of the main equipment, which was determined by the main equipment unit emission calculation unit 43, for each main equipment corresponding to each process during the period in which the process corresponding to the main equipment was performed. For example, in Figures 4 and 14, in the above example, the process CO2 emissions for the first process performed on the main equipment named "Melting Casting 1" in the period two periods prior are calculated by multiplying the unit amount of second CO2 emissions per unit of the main equipment named "Melting Casting 1" in the period two periods prior, which was determined as described above, by "0.35" [tCO2 / ton], which was determined by the unit amount of second CO2 emissions per unit of the main equipment named "Melting Casting 1" in the period two periods prior. The CO2 emissions for the first process carried out at the main equipment named "Melting Casting 1" in the previous period are calculated as follows: the total manufacturing load of the first process carried out at the main equipment named "Melting Casting 1" in the previous period, calculated as described above, is "26" [tons], and this is multiplied by the unit-by-unit CO2 emissions of the second unit at the main equipment named "Melting Casting 1" in the previous period, which is "0.36" [tCO2 / ton], resulting in "9.36" [tCO2]. The CO2 emissions for the third process carried out at the main equipment named "Rolling Mill 2" during the previous period are calculated as follows: the total manufacturing load of the third process carried out at the main equipment named "Rolling Mill 2" during the previous period, which was calculated as described above, is "33" [tons], and this is multiplied by the unit-by-unit CO2 emissions of the second unit at the main equipment named "Rolling Mill 2" during the previous period, which was "0.3" [tCO2 / ton], resulting in "9.9" [tCO2].

[0108] Similarly, for each of the following processes, the CO2 emissions related to each process are calculated: the second process carried out in the main equipment named "Rolling 1", the fourth process carried out in the main equipment named "Heat Treatment", and the fifth process carried out in the main equipment named "Cutting 1".

[0109] The auxiliary processing emission calculation unit 46 calculates the total amount of auxiliary processing CO2 emissions related to the predetermined processing on the target product of the target type, based on a given third unit CO2 emission per unit in a predetermined processing performed on the product from the time of manufacture to delivery to the customer, and the total amount of the target product of the target type whose manufacture is completed during the target period. The auxiliary processing emission calculation unit 46 calculates the amount of CO2 emissions related to the predetermined processing on the target product of the target type during the target period.

[0110] As described above, the predetermined processes include, for example, inspection, packaging, and transportation. Here, as an example, we will explain in more detail the transportation process when product No. "P001" is a target product of the target type. In this embodiment, the third unit CO2 emission per unit in the transportation process (transportation processing unit CO2 emission) is registered in association with the customer in the third unit emission information table 500c stored in the unit emission information storage unit 65. For this reason, the auxiliary processing emission calculation unit 46 searches for and selects a record in the product manufacturing performance information table 200a stored in the product manufacturing performance information storage unit 62 that registers "P001" in the product No. field 201a, and retrieves the customer "C1" and production quantity "30" [tons] registered in the customer field 2022a and production quantity field 203a, respectively, in the selected record. Next, the auxiliary processing emission calculation unit 46 searches for and selects a record in the third unit emission information table 500c stored in the unit emission information storage unit 65 that registers "C1" in the customer field 501c, and retrieves the transport processing unit CO2 emission "0.1" [tCO2 / ton] registered in the emission coefficient field 502c of the selected record. Then, the auxiliary processing emission calculation unit 46 uses the retrieved production amount "30" [ton] as the transport amount, and multiplies the retrieved transport processing unit CO2 emission "0.1" [tCO2 / ton] by the transport amount (production amount) "30" [ton] to obtain the total amount of auxiliary processing CO2 emissions related to the transport processing for product No. "P001" "3" [tCO2] (= "0.1" [tCO2 / ton] × "30" [ton]).

[0111] The first residual emission calculation unit 47 determines the fourth unit CO2 emission per unit product at the residual emission source based on the total amount of residual CO2 emissions related to the residual emission source during the target period and the total amount of products whose manufacture was completed during the target period. The first residual emission calculation unit 47 determines the total amount of residual CO2 emissions related to the residual emission source during the target period based on the total amount of consumption associated with the operation of the residual emission source that emits carbon dioxide during the target period and the fifth unit CO2 emission per unit of the consumption.

[0112] The second residual emission calculation unit 48 calculates the total amount of the second residual CO2 emissions related to the residual emission source for the manufacture of the target product of the target type, based on the fourth unit CO2 emissions per unit product at the residual emission source determined by the first residual emission calculation unit and the total amount of the target product of the target type that was completed during the target period.

[0113] As described above, residual emission sources include, for example, in-plant transport equipment, equipment that emits CO2 in shared facilities, and industrial waste treatment facilities. Since residual emission sources are not directly related to specific products, the CO2 emissions from residual emission sources cannot be directly allocated to specific products. For this reason, in this embodiment, the CO2 emissions from residual emission sources relate to all products manufactured at the factory during the predetermined period. The first residual emission calculation unit 47 determines the CO2 emissions per unit product (the fourth unit CO2 emissions per unit product) during the target period, and the second residual emission calculation unit 48 determines the amount of CO2 emissions to be allocated to the target products of the target type whose manufacture was completed during the target period, based on the CO2 emissions per unit product during the target period.

[0114] For example, in this embodiment, the amount of consumables consumed at residual emission sources is stored in the residual emission source-related performance information storage unit 64. Therefore, the first residual emission calculation unit 47 retrieves the amount of consumables consumed for each of the residual emission sources from the residual emission source-related performance information stored in the residual emission source-related performance information storage unit 64. In the example shown in Figure 7, the residual emission sources are the residual emission source named "In-plant transport," the residual emission source named "Common facilities," and the residual emission source named "Industrial waste treatment." The first residual emission calculation unit 47 retrieves the amount of each consumable registered in the consumption field 402 of each record from the residual emission source-related performance information table 400 stored in the residual emission source-related performance information storage unit 64. As shown in Figure 15, for the residual emission source named "In-plant transport," the electricity consumption of "3000" [kWh] and the diesel fuel consumption of "10" [kL] are extracted. For the residual emission source named "Common facilities," the electricity consumption of "1000" [kWh] is extracted. For the residual emission source named "Industrial waste treatment," the diesel fuel consumption of "1" [kL] and the cost consumption of "5000" [thousand yen] are extracted. Subsequently, the first residual emission calculation unit 47 extracts the fifth unit CO2 emission per unit of consumption associated with the operation of the residual emission source from the second unit emission information stored in the unit emission information storage unit 65. In the example shown in Figure 8B, the CO2 emissions per unit of electricity are extracted as "0.0005" [tCO2 / kWh], the CO2 emissions per unit of diesel fuel (CO2 emissions per unit of diesel fuel) are extracted as "3" [tCO2 / kg], and the CO2 emissions per unit of industrial waste treatment costs (CO2 emissions per unit of industrial waste treatment costs) are extracted as "0.008" [tCO2 / thousand yen].Next, as shown in Figure 15, the main equipment unit emission calculation unit 43 calculates the CO2 emission amount "1.5" [tCO2] for the residual emission source named "In-plant transport" by multiplying the CO2 emission amount per unit of electricity "0.0005" [tCO2 / kWh] by the electricity consumption "3000" [kWh], and calculates the CO2 emission amount "30" [tCO2] for the unit of diesel fuel CO2 emission "3" [tCO2 / kL] by the diesel fuel consumption "10" [kL], and for the residual emission source named "Common facilities", it multiplies the CO2 emission amount per unit of electricity "0.0005" [tCO2 / kWh] by the electricity consumption "1000" [kWh]. The CO2 emissions of "0.5" [tCO2] are calculated for the residual emission source named "industrial waste treatment". The CO2 emissions of "3" [tCO2 / kL] per unit of diesel fuel are multiplied by the amount of diesel fuel consumed, "1" [kL], to calculate the CO2 emissions of "3" [tCO2 / kL] for the residual emission source named "industrial waste treatment". The CO2 emissions of "40" [tCO2] per unit of industrial waste treatment cost are multiplied by the amount of industrial waste treatment cost consumed, "5000" [thousand yen], to calculate the CO2 emissions of "40" [tCO2]. The sum of these is then calculated to determine the total amount of residual CO2 emissions related to the residual emission source during the predetermined period, which is "75" [tCO2]. The main equipment unit emission calculation unit 43 then calculates the total amount of products manufactured at the factory during the predetermined period from the product manufacturing performance information stored in the product manufacturing performance information storage unit 62. In the example shown in Figure 3, the main equipment unit emission calculation unit 43 calculates the total amount of products manufactured at the factory during the predetermined period, which in this example is "1500" [tons] as described above, by summing the production quantities registered in each record of the production quantity field 203 in the product manufacturing performance information table 200 stored in the product manufacturing performance information storage unit 62. Then, the main equipment unit emission calculation unit 43 calculates the fourth unit CO2 emission per unit product at the residual emission source, "0.05" [tCO2 / ton], by dividing the total amount of residual CO2 emissions related to the residual emission source, "75" [tCO2], which was calculated as described above, by the total amount of products manufactured at the factory during the predetermined period, "1500" [tons], which was calculated as described above.

[0115] Using the fourth unit CO2 emission of "0.05" [tCO2 / ton] per unit product calculated in this way, for example, when calculating the CO2 emission allocated to product No. "P001" as a target product of the target type, the second residual emission calculation unit 48 searches and selects a record in the product manufacturing performance information table 200 stored in the product manufacturing performance information storage unit 62 that has "P001" registered in the product No. field 201, and the production quantity field in this selected record The production quantity of "30" [tons] registered in 203 is extracted, and the fourth unit CO2 emission amount per unit product at the residual emission source, "0.05" [tCO2 / ton], obtained by the first residual emission calculation unit 47, is multiplied by the extracted total amount (production quantity) of product No. "P001" during the predetermined period, "30" [tons], to obtain the total amount of the second residual CO2 emission amount related to the residual emission source for product No. "P001", "1.5" [tCO2].

[0116] The target product emission calculation unit 49 calculates the total amount of target product CO2 emissions for the target product of the target type by summing the total amount of CO2 emissions for each process performed by the main equipment, which is determined by the process emission calculation unit 44 for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type, and the total amount of raw material CO2 emissions for the raw materials related to the manufacture of the target product of the target type, which is determined by the raw material emission calculation unit 42. For example, if product No. "P001" is a target product of the target type, the target product emission calculation unit 49 calculates the following based on the above: process CO2 emission of the main equipment of equipment name "Smelting Casting 1" "13.91" (=13×0.35+26×0.36) [tCO2], process CO2 emission of the main equipment of equipment name "Rolling 1" "14.76" (=12×0.39+24×0.42) [tCO2], process CO2 emission of the main equipment of equipment name "Rolling 2" "9.9" (=11×0.3+22×0.3) [tCO2], and the main equipment of equipment name "Heat Treatment" The total CO2 emissions for the target product related to product No. "P001" are calculated as follows: the sum of the CO2 emissions from the equipment's process "0.99" (=11×0.03+22×0.03) [tCO2] and the CO2 emissions from the main equipment of equipment named "Cutting 1" "0.3" (=10×0.01+20×0.01) [tCO2], totaling "39.86" [tCO2], and the total amount of CO2 emissions from the raw materials related to the raw materials for product No. "P001" calculated as described above, totaling "46.8" [tCO2], totaling "86.66" [tCO2].

[0117] In this embodiment, the target product emission calculation unit 49 further adds to the total amount of target product CO2 emissions for the target product of the target type determined above, the total amount of auxiliary treatment CO2 emissions for the predetermined treatment applied to the target product of the target type, determined by the auxiliary treatment emission calculation unit 46, and the total amount of second residual CO2 emissions for the residual emission source applied to the target product of the target type, determined by the second residual emission calculation unit 48, to determine the total amount of target product CO2 emissions for the new target product of the target type. In other words, in this embodiment, the target product emission calculation unit 49 calculates the total amount of target product CO2 emissions for the target product of the target type as the sum of the process CO2 emissions for each process performed by the main equipment, which is determined by the process emission calculation unit 44 for each of the multiple main equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type; the total amount of raw material CO2 emissions for the raw materials for the manufacture of the target product of the target type, which is determined by the raw material emission calculation unit 42; the total amount of auxiliary processing CO2 emissions for the predetermined processing of the target product of the target type, which is determined by the auxiliary processing emission calculation unit 46; and the total amount of second residual CO2 emissions for the residual emission sources for the target product of the target type, which is determined by the second residual emission calculation unit 48. For example, if product No. "P001" is a target product of the target type, the total target product CO2 emissions of product No. "P001" calculated as described above, "86.66" [tCO2], is added to the total amount of auxiliary processing CO2 emissions related to the transportation processing of product No. "P001" calculated as described above, "3" [tCO2], and the total amount of second residual CO2 emissions related to the residual emission source for product No. "P001" calculated as described above, "1.5" [tCO2], is added to the total target product CO2 emissions of product No. "P001" calculated as described above, "91.16" [tCO2].

[0118] In the above description, the total amount of CO2 emissions from the auxiliary treatment related to the predetermined treatment for the target product of the target type, as determined by the auxiliary treatment emission calculation unit 46, and the total amount of the second residual CO2 emissions related to the residual emission source for the target product of the target type, as determined by the second residual emission calculation unit 48, were both added together. However, either one of them may be added.

[0119] In this embodiment, the target product emission calculation unit 49 further calculates the sixth unit CO2 emission per unit product for the target product of the target type based on the total amount of target product CO2 emissions for the target product of the target type determined above and the total amount of target product of the target type manufactured at the factory during the predetermined period. For example, if product No. "P001" is a target product of the target type, the sixth unit CO2 emission per unit product for product No. "P001" is calculated as "3.039" [tCO2 / product ton] by dividing the target product CO2 emission "91.16" [tCO2] for product No. "P001" determined above by the production volume "30" [tCO2] of product No. "P001".

[0120] In this embodiment, for lot-out materials that are discarded after the completion of any of the plurality of processes, and the completion of such lot-out materials falls within the target period, the process CO2 emissions up to the completion of the process are determined, the total amount of raw material CO2 emissions is determined, and the sum of these is determined as the total amount of lot-out material CO2 emissions related to the lot-out materials.

[0121] More specifically, the lotted items are considered as target products of the target type, and one or more processes performed up to the time of disposal from among the multiple processes used in the manufacture of the lotted items are considered as multiple processes used in the manufacture of target products of the target type. The raw material emission calculation unit 42 determines the total amount of raw material CO2 emissions related to the raw materials for the manufacture of target products of the target type as the total amount of raw material CO2 emissions related to the raw materials for the manufacture of the lotted items, the main equipment unit emission calculation unit 43 determines the second unit CO2 emissions per unit of the main equipment for the lotted items during that period, the process emission calculation unit 44 determines the process CO2 emissions related to the processes performed at the main equipment for the manufacture of target products of the target type as the process CO2 emissions related to the processes performed at the main equipment for the manufacture of the lotted items, and the target product emission calculation unit 49 determines the total amount of target product CO2 emissions related to target products of the target type as the total amount of lotted item CO2 emissions related to the lotted items.

[0122] For example, in the examples shown in Figures 4 and 14, in product No. "P001", lot No. "Lot 02" is a lot-out product as described above, and of the first to fifth processes, the first and second processes are carried out, and the process ends at the second process. First, the raw material emission calculation unit 42 takes the actual value "5" [ton] registered in each weight field 213b-2 in the first process as the amount of raw material used to manufacture the lot-out product, and multiplies this by the first unit CO2 emission amount per unit of raw material "1.2" [tCO2 / ton] taken out as described above to obtain the total amount of raw material CO2 emissions "6" [tCO2] related to the raw material for the manufacture of the lot-out product. The main equipment unit emission calculation unit 43 then calculates the second unit CO2 emission amount per unit of the main equipment for the lot-out product during that period, in the same manner as described above. If there is auxiliary equipment, the CO2 emission allocation amount is calculated and allocated in the same manner as described above. The process emission calculation unit 44 determines the process CO2 emissions for each of the first and second processes related to the processes carried out by the main equipment for the production of the lot-out products. The first process carried out by the main equipment named "Smelting Casting 1" was carried out in the period two periods prior (process implementation period information "-2"), and the second unit CO2 emission per unit was "0.35" [tCO2 / ton], and the total amount of manufacturing load in this first process was "5" [ton], so the process CO2 emissions for the first process related to the production of the lot-out products are calculated to be "1.75" (=5 × 0.35) [tCO2]. The second process, carried out by the main equipment named "Rolling 1," was performed in the previous period (process implementation period information "-1"), and the CO2 emissions per unit of the second unit were "0.42" [tCO2 / hrs]. The total manufacturing load in this second process was "0.3" [hrs], so the process CO2 emissions for the second process related to the production of the lot-out product were calculated to be "0.13" (=0.3 × 0.42) [tCO2]. The target product emission calculation unit 49 then calculates the total amount of lot-out product CO2 emissions related to the lot-out product, "7.88" (=1.75 + 0.13 + 6) [tCO2], by summing these values.

[0123] The emissions calculation unit 50, when there are lot-out items of the same type as the target product of the target type, adds a predetermined amount to the total amount of CO2 emissions of the lot-out items, which is calculated by the target product emissions calculation unit 49, and adds it to the total amount of CO2 emissions of the target product of the target product of the target product emissions calculation unit 49. As a result, the CO2 emissions generated by the manufacture of the lot-out items are added to the total amount of CO2 emissions of the target product by the predetermined amount and incorporated into the total amount of CO2 emissions of the target product, so that the CO2 emissions generated by the manufacture of the lot-out items are taken into consideration.

[0124] The type of lot-out product is the type of product that the lot-out product would be if its manufacture were completed and it became a product. The predetermined additional amount is a predetermined percentage of the total amount of CO2 emissions from the target product. The predetermined percentage is the ratio of the second number to the sum of the first number of products of the same type that were manufactured in the period one period prior to the target period and the second number of lot-out products whose completion was in the period one period prior. This is, for example, the lot-out occurrence rate calculated by determining the first and second numbers on a lot-by-lot basis. For example, if the product manufacturing performance information table 200b shown in Figure 4 registers the performance values ​​for the period one period prior to the target period, the lot-out occurrence rate will be "33" [%]. If the total amount of CO2 emissions from the target product is, for example, "23.09" [tCO2], then the predetermined additional amount will be "7.62" (=23.09 × 0.33) [tCO2].

[0125] The cumulative unallocated amount calculation unit 51 calculates the cumulative unallocated amount by accumulating the remaining amount from the total amount of CO2 emissions from the lot-out products that were not added to the total amount of CO2 emissions from the target product by the emission addition calculation unit 50 for each predetermined period. For example, if the cumulative unallocated amount up to the period before the target period is "27.12" [tCO2], the total amount of CO2 emissions from the lot-out products related to the lot-out products during the target period is "7.88" [tCO2], and the predetermined addition amount is "7.62" [tCO2], then the cumulative unallocated amount for the target period will be "27.38" (=27.12 + (7.88 - 7.62)).

[0126] The control unit 41 then outputs the calculation results of each calculation unit 42 to 51 from the output unit 2. For example, if the output unit 2 is a display device, the calculation results of each calculation unit 42 to 51 are displayed on the screen of the display device. Alternatively, for example, if the output unit 2 is a printing device, the calculation results of each calculation unit 42 to 51 are printed on paper by the printing device and output as a report. An example of this is shown in Figures 16 and 17. Figure 16 shows a screen or report relating to a lot-out product of product No. "P001" and lot No. "Lot 02," and Figure 17 shows a screen or report relating to a product of product No. "P001" and lot No. "10." These show the product No., lot No., type of product (variety and customer), process, total amount of raw materials during the target period (actual value), manufacturing load (weight, usage time) (actual value) for each process (each main equipment), second unit CO2 emissions per unit for each main equipment, process CO2 emissions related to the processes carried out in the main equipment, process implementation period for each process, total amount of ancillary processing CO2 emissions related to transportation processing, fourth unit CO2 emissions per unit product from the residual emission source, and total amount of second residual CO2 emissions related to the residual emission source. Note that the process implementation period information for the target period is set to "0." Figure 16 also shows the total amount of CO2 emissions from lot-out products. Figure 17 further shows the total amount of CO2 emissions per lot, the lot-out rate, the amount of unallocated CO2, the additional CO2 emissions, the 7th unit CO2 emissions per lot, and the cumulative unallocated amount. The total amount of CO2 emissions per lot is calculated by the target product emission calculation unit 49 as the total amount of CO2 emissions for the products of the lot, assuming that the products of the lot are target products of the target type. The amount of unallocated CO2 is the cumulative unallocated amount in the previous period plus the total amount of CO2 emissions from lot-out products during the target period, and is calculated, for example, by the cumulative unallocated amount calculation unit 51. For example, if the cumulative unallocated amount in the previous period is "27.12" [tCO2] and the total amount of CO2 emissions from lot-out products during the target period is "7.88", then the amount of unallocated CO2 is "35" [tCO2].The aforementioned additional CO2 emission amount is the value obtained by adding the predetermined additional amount to the total amount of CO2 emissions from the target product, which is determined by the emission addition calculation unit 50. For example, as described above, if the lot-out rate is "33" [%] and the total amount of CO2 emissions from the target product is "23.09" [tCO2], then the additional CO2 emission amount will be "30.72" (=23.09 + 23.09 × 0.33) [tCO2]. The seventh unit CO2 emission amount per unit lot is the value obtained by dividing the additional CO2 emission amount by the shipment quantity on a lot basis, and is determined, for example, by the target product emission calculation unit 49. For example, if the shipment quantity is "10" [tons] and the additional CO2 emission amount is "30.72" [tCO2], then the seventh unit CO2 emission amount per unit lot will be "3.072" (=30.72 / 10) [tCO2 / shipment lot ton]. Furthermore, the screen or report shown in Figure 17 may also display or indicate the total amount of CO2 emissions for the target products of the target type and the sixth unit CO2 emissions per unit product of the target products of the target type. For example, the total amount of CO2 emissions for product No. "P001" and the sixth unit CO2 emissions per unit product may be displayed or indicated.

[0127] Furthermore, the control unit 41 may, if necessary, output the calculation results of each calculation unit 42 to 51 to an external device via the IF unit 3.

[0128] In a carbon dioxide emission calculation device S, which is an example of a carbon dioxide emission calculation system, the input unit 1, output unit 2, IF unit 3, control processing unit 4, and storage unit 6 can be configured using, for example, a desktop or notebook computer. Of course, as mentioned above, the carbon dioxide emission calculation system may be configured using multiple computers connected in a communicative manner.

[0129] Next, the operation of this embodiment will be described. Figure 18 is a flowchart showing the operation of the carbon dioxide emission calculation system (or, as an example, the carbon dioxide emission calculation device).

[0130] When the carbon dioxide emission calculation device S with this configuration is powered on, it performs the initialization of each necessary part and starts operating. The control processing unit 4 is functionally configured by the execution of its control processing program to include a control unit 41, a raw material emission calculation unit 42, a main equipment unit emission calculation unit 43, a process emission calculation unit 44, an emission allocation calculation unit 45, an auxiliary processing emission calculation unit 46, a first residual emission calculation unit 47, a second residual emission calculation unit 48, a target product emission calculation unit 49, an additional emission calculation unit 50, and a cumulative unallocated amount calculation unit 51.

[0131] When the user (operator) inputs a target product of a specific type and a target period, the carbon dioxide emission calculation device S begins calculating the CO2 emissions for the target product of that type during the target period. Note that all products of each type produced during the target period may be included in the CO2 emission calculation. In such cases, the processes S1 to S11 described below for a single target product of a specific type are repeatedly executed for each product of each type.

[0132] In Figure 18, first, the carbon dioxide emission calculation device S uses the raw material emission calculation unit 42 of the control processing unit 4 to determine the total amount of raw material CO2 emissions related to the manufacture of the target product of the target type during the target period (S1).

[0133] Next, the carbon dioxide emission calculation device S, at each predetermined period, uses the emission allocation calculation unit 45 of the control processing unit 4 to determine the CO2 emission allocation amount for each of the multiple facilities that use the auxiliary equipment during that period (S2).

[0134] Next, the carbon dioxide emission calculation device S, using the main equipment unit emission calculation unit 43 of the control processing unit 4, calculates the unit-by-unit CO2 emission for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type for each predetermined period (S3).

[0135] Next, the carbon dioxide emission calculation device S, using the process emission calculation unit 44 of the control processing unit 4, calculates the process CO2 emissions for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, for the period during which the process corresponding to that main equipment is performed (S4).

[0136] Next, the carbon dioxide emission calculation device S uses the auxiliary processing emission calculation unit 46 of the control processing unit 4 to determine the total amount of auxiliary processing CO2 emissions for the target product of the target type related to a predetermined processing (S5).

[0137] Next, the carbon dioxide emission calculation device S, using the first and second residual emission calculation units 47 and 48 of the control processing unit 4, determines the fourth unit CO2 emission per unit product at the residual emission source during the target period, and calculates the total amount of the second residual CO2 emission related to the residual emission source for the target product of the target type (S6).

[0138] Next, the carbon dioxide emission calculation device S uses the target product emission calculation unit 49 of the control processing unit 4 to determine the total amount of target product CO2 emissions for the target product of the target type during the target period (S7).

[0139] Next, the carbon dioxide emission calculation device S uses the target product emission calculation unit 49 to determine whether or not there are any lot-out products of the same type as the target product of the target type (S8). If the result of this determination is that lot-out products exist (Yes), the carbon dioxide emission calculation device S then executes process S9. If there are no lot-out products (No), the carbon dioxide emission calculation device S then executes process S12.

[0140] In this process S9, the carbon dioxide emission calculation device S uses the target product emission calculation unit 49 to determine the total amount of CO2 emissions from the lotted-out products during the target period (S8).

[0141] Following the process S9, the carbon dioxide emission calculation device S determines the additional amount using the emission addition calculation unit 50 of the control processing unit 4, adds the additional amount to the total amount of CO2 emissions of the target product determined by the target product emission calculation unit in the process S7, and determines the total amount of additional CO2 emissions for the target product of the target type during the target period (S10).

[0142] Following the process S10, the carbon dioxide emission calculation device S uses the cumulative unallocated amount calculation unit 51 of the control processing unit 4 to determine the cumulative unallocated amount for the target period (S11), and then executes the process S12.

[0143] In the process S12 described above, the carbon dioxide emission calculation device S outputs the calculation results of each calculation unit 42 to 51 from the output unit 2 via the control unit 41 of the control processing unit 4, and then terminates the process.

[0144] As described above, the carbon dioxide emission calculation system (carbon dioxide emission calculation device as an example) S in the embodiment, and the carbon dioxide emission calculation method and carbon dioxide emission calculation program implemented therein, determine the unit-per-unit CO2 emission amount of the main equipment for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, for each predetermined period. Since the unit-per-unit CO2 emission amount of the main equipment for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type is known, the carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method and carbon dioxide emission calculation program can determine the process CO2 emission amount for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, based on the unit-per-unit CO2 emission amount of the main equipment for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, during the period in which the process corresponding to the main equipment is performed, and the total amount of manufacturing load on the main equipment for the manufacture of the target product of the target type. Therefore, the carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program described above can more accurately determine carbon dioxide emissions even when the multiple processes for manufacturing the above-mentioned product span multiple periods.

[0145] In particular, in factories that can manufacture multiple types of products through multiple processes (multi-product manufacturing factories), the processes usually differ depending on the type of product. Therefore, simply allocating the total amount of carbon dioxide emissions from the entire factory equally to each product does not allow for the determination of carbon dioxide emissions for each product. The above-mentioned carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program calculate the unit-level CO2 emissions per unit of main equipment (i.e., the unit CO2 emissions for each process) for each of the multiple main equipment corresponding to each of the multiple processes. Thus, even in multi-product manufacturing factories, it is possible to determine the carbon dioxide emissions for each product.

[0146] The total amount of CO2 emissions from auxiliary equipment during a predetermined period cannot be directly allocated to target products of a target type because the auxiliary equipment is used in multiple facilities. The carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program allocate the total amount of CO2 emissions from auxiliary equipment during each predetermined period to each of the multiple facilities in which the auxiliary equipment is used, at a predetermined rate, so that it can be allocated to target products of a target type.

[0147] The above-mentioned carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program make it possible to take into account the total amount of CO2 emissions from incidental processing related to predetermined processing performed on the product from the time of manufacture to delivery to the customer, in addition to the carbon dioxide emissions for each target product of the target type.

[0148] The above-mentioned carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program make it possible to take into account the total amount of residual CO2 emissions related to the residual emission source in the carbon dioxide emissions for each target product of the target type.

[0149] The carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program described above calculate the sum of the total CO2 emissions from each process and the total amount of CO2 emissions from raw materials, so it is possible to determine the total amount of CO2 emissions from target products of the target type (i.e., the amount of carbon dioxide emissions for each product). As described above, the CO2 emissions from each process performed by the main equipment include the CO2 emissions from the auxiliary equipment if the main equipment uses auxiliary equipment, so the carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program can take into account the CO2 emissions from the auxiliary equipment to determine the total amount of CO2 emissions from target products of the target type. In this embodiment, the carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program add to the total amount of CO2 emissions from target products of the target type determined above, the total amount of CO2 emissions from ancillary processing related to the predetermined processing applied to the target product of the target type, determined by the ancillary processing emission calculation unit 46, and the total amount of second residual CO2 emissions related to the residual emission source for the target product of the target type, determined by the second residual emission calculation unit 48, to determine the total amount of CO2 emissions from target products of the new target type. Therefore, the carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program can determine the total amount of CO2 emissions from target products of the target type by taking into account the CO2 emissions from predetermined processing performed on the product from the time of manufacture to delivery to the customer, and the CO2 emissions from residual emission sources.

[0150] The above carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program make it possible to determine the carbon dioxide emissions of lot-out waste that is discarded after the completion of any of the processes.

[0151] The above carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program can allocate the CO2 emissions of lot-out products to the CO2 emissions of the target product by a predetermined second percentage.

[0152] The above carbon dioxide emission calculation system (carbon dioxide emission calculation device) S, carbon dioxide emission calculation method, and carbon dioxide emission calculation program can determine the cumulative amount of unallocated CO2 emissions from the total amount of lot-out products.

[0153] To illustrate the present invention, the embodiments have been adequately and fully described above with reference to the drawings. However, those skilled in the art should recognize that it is easy to modify and / or improve upon the embodiments described above. Therefore, unless such modifications or improvements implemented by those skilled in the art fall outside the scope of the claims, such modifications or improvements shall be considered to be included within the scope of the claims. [Explanation of symbols]

[0154] S Carbon dioxide emission calculation system (one example of a carbon dioxide emission calculation device) 1 Input section 2 Output section 3. Interface section (IF section) 4 Control Processing Unit 6 Memory section 41 Control Unit 42 Raw material emissions calculation section 43 Main Equipment Unit Emission Calculation Unit 44 Process emissions calculation section 45 Discharge Allocation Calculation Unit 46. ​​Attached processing discharge calculation unit 47 1st residual emission calculation section 48 2nd residual emission calculation section 49 Target product emission calculation unit 50 Emissions Addition Calculation Unit 51 Cumulative unallocated amount calculation section 61 Manufacturing process information storage section 62 Product Manufacturing Performance Information Storage Unit 63. Equipment-related performance information storage unit 64. Storage Unit for Residual Emission Source-Related Performance Information 65 Unit Emission Information Storage Unit 66 Storage Unit for Information Related to Sub-Equipment

Claims

1. In a factory capable of manufacturing products of multiple types through multiple processes, CO2 related to the said products ２ A carbon dioxide emission calculation system that determines emissions at predetermined intervals, Given, the first unit CO2 per unit of raw materials used in the manufacture of the target product of the target type ２ Based on the emissions and the total amount of raw materials used in the target product of the target type, the raw material CO2 emissions related to the manufacture of the target product of the target type are calculated. ２ A raw material emission calculation unit that calculates the total amount of emissions, For each predetermined period, the second unit CO2 per unit in the main equipment during that period ２ Emissions are calculated using the unadjusted second unit CO2 per unit at the main facility for periods prior to the relevant period. ２ Based on the emissions, a calculation unit for calculating the required main equipment unit emissions is provided for each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the target type, For each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target products of the aforementioned target type, the second unit CO2 per unit of the main equipment calculated by the main equipment unit emission calculation unit during the period in which the process corresponding to the main equipment was performed. ２ Based on the emissions and the total manufacturing load on the main facility for the production of the target product of the target type, process CO2 emissions related to the processes carried out at the main facility for the production of the target product of the target type. ２ It includes a process emission calculation unit that determines the amount of emissions, The target products of the aforementioned target types are manufactured to completion during the target period, which is the period under calculation, and CO ２ This product is designed to measure emissions. The aforementioned main equipment is equipment that corresponds to the aforementioned process and is used to carry out the aforementioned process. The main equipment unit emission calculation unit calculates the CO emissions before adjustment per unit based on the total manufacturing load required for manufacturing by the main equipment within the predetermined period and the total CO emissions related to the main equipment with respect to the total manufacturing load. ２ emissions, ２ total emissions, A carbon dioxide emissions calculation system.

2. For each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target product of the aforementioned target type, the process emission calculation unit determines each process CO2 related to the processes performed by the main equipment. ２ The total amount of emissions and the raw material CO2 emissions for the manufacture of the target product of the target type, as determined by the raw material emission calculation unit. ２ The sum of the total emissions and the CO2 emissions for the target product of the target product of the target type is calculated as follows: ２ It further includes a unit for calculating the total amount of emissions from the target product. The carbon dioxide emission calculation system according to claim 1.

3. For each predetermined period, in the auxiliary equipment used for multiple pieces of equipment that are indirectly involved in the manufacture of the product via the main equipment, the auxiliary equipment CO2 for the auxiliary equipment during that period ２ By allocating the total amount of emissions to each of the multiple facilities in which the auxiliary equipment is used, at a predetermined rate, the CO emissions related to the facility in which the auxiliary equipment is used during that period are calculated for each of the multiple facilities in which the auxiliary equipment is used. ２ It further comprises a discharge allocation calculation unit that determines the discharge allocation amount, The main equipment unit emission calculation unit calculates the second unit CO2 per unit in the main equipment. ２ When determining emissions, if the aforementioned auxiliary equipment is present in relation to the main equipment, the CO2 emissions calculation unit determines the CO2 emissions related to the equipment corresponding to the main equipment during that period. ２ The amount of emissions allocated is the CO2 emissions related to the main equipment relative to the total amount of the manufacturing load. ２ By adding it to the total amount of emissions, a new CO2 from the main equipment relative to the total amount of the manufacturing load is obtained. ２ The total amount of emissions is determined, and the CO2 emissions from the main equipment are calculated based on the new total amount of manufacturing load determined above. ２ Based on the total amount of emissions, the unadjusted second unit CO2 per unit at the main facility during that period ２ To calculate emissions, The carbon dioxide emission calculation system according to claim 1.

4. Given, the third unit CO per unit in a predetermined process performed on the product between the time of manufacture and delivery to the customer. ２ Based on the emissions and the total amount of the target products of the target type, ancillary processing CO2 for the predetermined processing of the target products of the target type is determined. ２ It further includes an auxiliary processing emission calculation unit that determines the total amount of emissions. The carbon dioxide emission calculation system according to claim 1.

5. CO ２ CO2 emissions ２ The emission sources are the main equipment, the sub-equipment, the predetermined treatment, and the residual emission sources remaining after the main equipment, the sub-equipment, and the predetermined treatment. Residual CO2 related to the residual emission source during the aforementioned period ２ Based on the total amount of emissions and the total amount of products manufactured during the aforementioned period, the fourth unit CO2 per unit product in the residual emission source is calculated. ２ A first residual emissions calculation unit that calculates emissions, The fourth unit CO2 per unit product in the residual emission source, as determined by the first residual emission calculation unit. ２ Based on the emissions and the total amount of the target products of the target type, the second residual CO2 emission source for the manufacture of the target products of the target type is calculated. ２ It further comprises a second residual emissions calculation unit that determines the total amount of emissions, The carbon dioxide emission calculation system according to claim 1.

6. Lot-out products that are discarded after the completion of any of the aforementioned multiple processes, and whose completion occurs within the aforementioned period, are considered to be the target products of the aforementioned type. Of the multiple processes used in the manufacture of the lot-out product, one or more processes performed up to the time of disposal are considered to be multiple processes used in the manufacture of the target product of the target type. The raw material emission calculation unit calculates the raw material CO2 emissions related to the manufacture of the target product of the target type. ２ The total amount of emissions is the raw material CO2 related to the production of the lot-out product. ２ Calculated as the total amount of emissions, The main equipment unit emission calculation unit calculates the second unit CO2 per unit in the main equipment for the lot-out product during that period. ２ To determine the emissions, The process emission calculation unit calculates process CO2 related to the processes performed in the main equipment for the manufacturing of the target product of the target type. ２ The emissions are related to the process CO2 emissions from the process carried out in the main equipment for the manufacturing of the lot-out products. ２ As emissions, The aforementioned target product emission calculation unit calculates the target product CO2 for the target product of the aforementioned target type. ２ The total amount of emissions is the CO2 from the lotted-out product. ２ The total amount of emissions is calculated as follows: The carbon dioxide emission calculation system according to claim 2.

7. If there are lot-out items of the same type as the target product of the aforementioned target type, the CO2 emissions calculation unit for the target product will determine the CO2 emissions for the target product. ２ The total amount of emissions plus the amount of CO2 from the lot-out product calculated by the product emission calculation unit. ２ The system further includes an emissions addition calculation unit that adds a predetermined amount to the total amount of emissions, The type of the lot-out product is the type of product that would result if the lot-out product were to be manufactured and become a finished product. The predetermined amount of addition is the CO2 of the target product. ２ A predetermined percentage of the total amount of emissions, The predetermined ratio is the ratio of the second number to the sum of the first number of products of the same type that were manufactured in the period one period prior to the target period, and the second number of lot-out products whose completion was in the period one period prior. The carbon dioxide emission calculation system according to claim 6.

8. The aforementioned lot-out product CO ２ Of the total amount of emissions, the CO2 of the target product calculated by the emissions calculation unit ２ The system further includes a cumulative unallocated amount calculation unit that calculates a cumulative unallocated amount by accumulating the remaining amount that was not added to the total amount of emissions for each predetermined period. The carbon dioxide emission calculation system according to claim 7.

9. In a factory capable of manufacturing products of multiple types through multiple processes, CO2 related to the said products ２ A method for calculating carbon dioxide emissions, which determines emissions at predetermined intervals, Given, the first unit CO2 per unit of raw materials used in the manufacture of the target product of the target type ２ Based on the emissions and the total amount of raw materials used in the target product of the target type, the raw material CO2 emissions related to the manufacture of the target product of the target type are calculated. ２ The raw material emissions calculation step determines the total amount of emissions, For each predetermined period, the second unit CO2 per unit in the main equipment during that period ２ Emissions are calculated using the unadjusted second unit CO2 per unit at the main facility for periods prior to the relevant period. ２ Based on the emissions, for each of the multiple main pieces of equipment corresponding to each of the multiple processes used in the manufacture of the target product of the target type, a calculation step for the amount of emissions per unit of main equipment is performed, For each of the multiple main equipment units corresponding to each of the multiple processes used in the manufacture of the target products of the aforementioned target type, the second unit CO2 per unit of the main equipment, calculated in the main equipment unit emission calculation step, is calculated for the period during which the process corresponding to the main equipment is performed. ２ Based on the emissions and the total manufacturing load on the main facility for the production of the target product of the target type, process CO2 emissions related to the processes carried out at the main facility for the production of the target product of the target type. ２ The process includes a step for calculating emissions, The target products of the aforementioned target types are manufactured to completion during the target period, which is the period under calculation, and CO ２ This product is designed to measure emissions. The aforementioned main equipment is equipment that corresponds to the aforementioned process and is used to carry out the aforementioned process. The main equipment unit emission calculation step involves the unadjusted second unit CO2 per unit. ２ The emissions are calculated as follows: the total amount of manufacturing load incurred by the main equipment during the predetermined period of production, and the CO2 emissions related to the main equipment relative to the total amount of manufacturing load. ２ Based on the total amount of emissions, Method for calculating carbon dioxide emissions.

10. Lot-out products that are discarded after the completion of any of the aforementioned multiple processes, and whose completion occurs within the aforementioned period, are considered to be the target products of the aforementioned type. Of the multiple processes used in the manufacture of the lot-out product, one or more processes performed up to the time of disposal are considered to be multiple processes used in the manufacture of the target product of the target type. The raw material emission calculation step involves calculating the raw material CO2 emissions for the manufacture of the target product of the target type. ２ The total amount of emissions is the raw material CO2 related to the production of the lot-out product. ２ Calculated as the total amount of emissions, The main equipment unit emission calculation step involves calculating the second unit CO2 per unit in the main equipment for the lot-out material during that period. ２ To determine the emissions, The process emission calculation step involves process CO2 related to the processes performed in the main equipment for the manufacture of the target product of the target type. ２ The emissions are related to the process CO2 emissions from the process carried out in the main equipment for the manufacturing of the lot-out products. ２ As emissions, The aforementioned product emission calculation step involves the CO2 emissions of the target product relating to the target product of the aforementioned target type. ２ The total amount of emissions is the CO2 from the lotted-out product. ２ Calculated as the total amount of emissions, For each of the multiple main equipment units corresponding to one or more processes performed up to the disposal of the lot-out product among the multiple processes used in the manufacture of the lot-out product, the CO2 emissions for each process performed by the main equipment unit, as determined in the process emission calculation step, are calculated. ２ The total amount of emissions and the raw material CO2 emissions related to the production of the lot-out product, as determined in the raw material emission calculation step. ２ The sum of the total amount of emissions and the lot-out CO2 related to the lot-out product is calculated as follows: ２ The system further includes a lot-out emissions calculation step to determine the total amount of emissions. The method for calculating carbon dioxide emissions according to claim 9.

11. In a factory capable of manufacturing products of multiple types through multiple processes, CO2 related to the said products ２ A carbon dioxide emission calculation program for determining emissions at predetermined intervals, wherein the program causes a computer to function as a carbon dioxide emission calculation system according to any one of claims 1 to 8.

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