Calculation method for extra carbon dioxide emission caused by blending combustion of sludge in fire coal

Abstract

The invention provides a method for calculating the additional carbon dioxide emission of fire coal caused by blending combustion of sludge. The method comprises the following steps: determining the fire coal consumption variation of a combustion system before and after blending combustion of sludge and the average low calorific value of a fire coal as received basis in a target time interval; determining the product value of the fire coal consumption variation and the average low calorific value of the fire coal as received basis in the target time interval as the fire coal calorific value variation of the combustion system before and after sludge blending combustion; and determining a product value of the fire coal calorific value variation and a preset fire coal carbon emission factor as the additional carbon dioxide emission of the fire coal caused by sludge blending combustion. By implementing the method disclosed by the invention, accurate calculation of the fire coal calorific value variation of the combustion system before and after the sludge blending combustion can be realized by combining the fire coal consumption variation of the combustion system before and after the sludge blending combustion and the average low calorific value of the fire coal as received basis in the target time interval; therefore, the accuracy and the reliability of the extra carbon dioxide emission of the fire coal caused by the sludge blending combustion are effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of carbon emission calculation, and in particular to a method for calculating additional carbon dioxide emissions from coal combustion resulting from the co-combustion of sewage sludge. Background Art

[0002] With increasingly stringent environmental protection requirements, coal-fired power plants face immense pressure to reduce emissions. Simultaneously, sewage sludge co-incineration, as an effective sludge disposal method, has gained widespread adoption in recent years. However, this can alter the combustion efficiency of coal-fired power plants, thereby impacting their carbon emissions. Therefore, carbon emissions accounting for sewage sludge co-incineration projects is necessary to assess their emission reduction and environmental benefits. This project carbon emissions accounting typically involves calculating the additional CO2 emissions from coal combustion resulting from the co-incineration of sewage sludge during the combustion phase of coal-fired power plants.

[0003] In the related art, the accuracy of the calculation results of the additional carbon dioxide emissions caused by the burning of sludge cannot be guaranteed. Summary of the Invention

[0004] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the present disclosure is to propose a method, device, computer equipment and storage medium for calculating the additional carbon dioxide emissions from coal burning caused by the co-burning of sludge, which can accurately calculate the change in the calorific value of coal in the combustion system before and after the co-burning of sludge, combined with the change in coal consumption in the combustion system before and after the co-burning of sludge, and the average low calorific value of the coal received in the target time interval, thereby effectively improving the accuracy and reliability of the obtained additional carbon dioxide emissions from coal burning caused by the co-burning of sludge.

[0006] To achieve the above objectives, the method for calculating the additional carbon dioxide emissions from coal combustion caused by the co-combustion of sewage sludge is proposed in the first embodiment of the present disclosure, including:

[0007] Determine the change in coal consumption in the combustion system before and after the sludge blending, as well as the average low calorific value of the coal received during the target time period;

[0008] Determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed;

[0009] The product of the change in the calorific value of the coal and the preset coal carbon emission factor is determined as the additional carbon dioxide emission caused by the burning of sludge.

[0010] To achieve the above-mentioned purpose, the second embodiment of the present disclosure provides a device for calculating the additional carbon dioxide emissions caused by the combustion of sewage sludge, comprising:

[0011] The first determination module is used to determine the change in coal consumption of the combustion system before and after the sludge is mixed, and the average low calorific value of the coal received during the target time interval;

[0012] The second determining module is used to determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed;

[0013] The third determination module is used to determine the product of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emission of the coal caused by the burning of sludge.

[0014] The computer device proposed in the third embodiment of the present disclosure includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for calculating the additional carbon dioxide emissions from coal combustion caused by the co-burning of sewage sludge as proposed in the first embodiment of the present disclosure.

[0015] The fourth embodiment of the present disclosure proposes a non-temporary computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, it implements the method for calculating the additional carbon dioxide emissions caused by the burning of sludge in coal as proposed in the first embodiment of the present disclosure.

[0016] The fifth embodiment of the present disclosure proposes a computer program product. When the instructions in the computer program product are executed by a processor, the method for calculating the additional carbon dioxide emissions caused by the co-burning of sludge with coal proposed in the first embodiment of the present disclosure is executed.

[0017] The present disclosure provides a method, device, computer equipment and storage medium for calculating the additional carbon dioxide emissions from coal combustion caused by the mixing and burning of sludge. The method determines the change in coal consumption of the combustion system before and after the mixing and burning of sludge, and the average low calorific value of the coal as received in the target time interval; determines the product value of the change in coal consumption and the average low calorific value of the coal as received in the target time interval as the change in the calorific value of the coal in the combustion system before and after the mixing and burning of sludge; and determines the product value of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emissions from coal combustion caused by the mixing and burning of sludge. Thus, the change in coal consumption of the combustion system before and after the mixing and burning of sludge, and the average low calorific value of the coal as received in the target time interval can be combined to accurately calculate the change in the calorific value of the coal in the combustion system before and after the mixing and burning of sludge, thereby effectively improving the accuracy and reliability of the obtained additional carbon dioxide emissions from coal combustion caused by the mixing and burning of sludge.

[0018] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a flow chart of a method for calculating additional carbon dioxide emissions from coal combustion caused by the co-firing of sewage sludge, as proposed in one embodiment of the present disclosure;

[0021] Figure 2 is a flow chart of a method for calculating additional carbon dioxide emissions from coal combustion caused by the co-firing of sewage sludge, as proposed in another embodiment of the present disclosure;

[0022] Figure 3 This is a schematic diagram of the structure of a device for calculating the additional carbon dioxide emissions from coal combustion caused by the mixing of sludge with coal, according to an embodiment of the present disclosure;

[0023] Figure 4 A block diagram of an exemplary computer device suitable for implementing embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0025] Figure 1 It is a flow chart of a method for calculating additional carbon dioxide emissions from coal combustion caused by the co-firing of sewage sludge, as proposed in one embodiment of the present disclosure.

[0026] It should be noted that the executor of the method for calculating the additional carbon dioxide emissions from coal combustion caused by the blending of sludge in this embodiment is a device for calculating the additional carbon dioxide emissions from coal combustion caused by the blending of sludge. The device can be implemented by software and / or hardware. The device can be configured in a computer device. The computer device can include but is not limited to a terminal, a server, etc. For example, the terminal can be a mobile phone, a handheld computer, etc.

[0027] like Figure 1 As shown in the figure, the calculation method of additional carbon dioxide emissions caused by the co-firing of sewage sludge includes:

[0028] S101: Determine the change in coal consumption in the combustion system before and after the sludge is mixed and burned, and the average low calorific value of the coal received during the target time interval.

[0029] The change in coal consumption of the combustion system before and after the sludge is mixed with the combustion can be used to indicate the change in coal consumption of the combustion system per unit time before and after the sludge is mixed with the combustion.

[0030] The target time interval can be a week, a month, a year, etc., and there is no restriction on this.

[0031] The lower heating value refers to the amount of heat released per unit mass or volume of fuel when the fuel is completely burned, assuming that the water vapor produced during the combustion process does not condense. This means that the additional heat released by condensation of water vapor is not taken into account, and is usually lower than the upper heating value.

[0032] In the embodiment of the present disclosure, when determining the change in coal consumption in the combustion system before and after the sludge is mixed and burned, as well as the average low calorific value of the coal received in the target time interval, reliable data support can be provided for the subsequent calculation of the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned.

[0033] S102: Determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed.

[0034] Among them, the change in calorific value of coal in the combustion system before and after the sludge is mixed and burned can be used to indicate the change in the activity level of coal in the combustion system before and after the sludge is mixed and burned.

[0035] For example, in the embodiment of the present disclosure, the change in the activity level of coal burning ΔAD co，rs When , it can be calculated as follows:

[0036] ΔAD co,rs =ΔFC co,rs ×NCV 煤

[0037] in,

[0038] ΔAD co,rs Refers to the change in coal activity level in the combustion system before and after the sludge is mixed with the coal (i.e. the change in the calorific value of the coal in the combustion system before and after the sludge is mixed with the coal), expressed in calorific value (GJ);

[0039] ΔFC co，rs Refers to the change in coal consumption in the combustion system before and after the sludge is mixed and burned (in tons);

[0040] NCV 煤 It refers to the monthly average lower calorific value of the coal received (GJ / ton).

[0041] In the embodiment of the present disclosure, when the product value of the change in coal consumption and the average lower heating value of the coal as received in the target time interval is determined as the change in the calorific value of coal in the combustion system before and after the sludge blending, the change in coal consumption and the average lower heating value of the coal as received in the target time interval can be combined to accurately estimate the change in the calorific value of coal in the combustion system before and after the sludge blending, thereby providing reliable reference information for the subsequent calculation of the additional carbon dioxide emissions from coal caused by the sludge blending.

[0042] S103: Determine the product of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emissions from the coal combustion caused by the co-combustion of sludge.

[0043] Among them, the additional carbon dioxide emissions from coal combustion caused by the co-combustion of sludge may refer to the additional carbon dioxide emissions caused by the change in coal combustion caused by the co-combustion of sludge.

[0044] For example, in the embodiment of the present disclosure, when determining the product of the change in the calorific value of coal and the preset coal carbon emission factor as the additional carbon dioxide emissions caused by the burning of sludge, the following formula can be used:

[0045] E rs =ΔAD co,rs ×EF co

[0046] in,

[0047] E rs Refers to the additional carbon dioxide emissions (in tons) caused by the change in coal combustion due to the co-firing of sewage sludge;

[0048] ΔAD co,rs It refers to the change in coal activity level in the combustion system before and after the sludge is mixed, expressed in calorific value (GJ);

[0049] EF co Refers to the carbon emission factor of coal combustion (tons of carbon dioxide per gigajoules).

[0050] In this embodiment, by determining the change in coal consumption of the combustion system before and after the sludge is mixed and burned, and the average low calorific value of the coal as received in the target time interval; determining the product of the change in coal consumption and the average low calorific value of the coal as received in the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned; and determining the product of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emissions from the coal mixed and burned. Thus, the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned, and the average low calorific value of the coal as received in the target time interval can be combined to accurately calculate the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned, thereby effectively improving the accuracy and reliability of the obtained additional carbon dioxide emissions from the coal mixed and burned.

[0051] Figure 2 It is a flow chart of a method for calculating additional carbon dioxide emissions from coal combustion caused by the co-firing of sewage sludge, as proposed in another embodiment of the present disclosure.

[0052] like Figure 2 As shown in the figure, the calculation method of additional carbon dioxide emissions caused by the co-firing of sewage sludge includes:

[0053] S201: Determine the average low calorific value of the coal received during the target time interval.

[0054] The description of S201 can be found in the above embodiment and will not be repeated here.

[0055] S202: Determine the change in coal consumption per unit time of the combustion system before and after the sludge is mixed and burned.

[0056] The change in coal consumption per unit time may refer to the change in coal consumption per unit time in the combustion system before and after the sludge is mixed and burned.

[0057] Optionally, in some embodiments, when determining the change in coal consumption per unit time of the combustion system before and after the sludge is mixed and burned, relevant parameters may be determined, wherein the relevant parameters include: the actual effective heat of the boiler after the sludge is mixed and burned per unit time, the boiler efficiency after the mixing and burning, the boiler efficiency before the mixing and burning, the mass of the dried sludge entering the furnace per unit time, and the average low calorific value of the dried sludge entering the furnace; the average low calorific value of the coal received during the target time interval and the relevant parameters are substituted into the first preset formula to calculate the change in coal consumption per unit time of the combustion system before and after the sludge is mixed and burned. In this way, the relevant parameters of multiple dimensions of the boiler combustion process can be combined to achieve accurate calculation of the change in coal consumption per unit time.

[0058] The actual effective heat of the boiler after the sludge is mixed and burned per unit time may refer to the actual effective heat of the boiler after the sludge is mixed and burned per unit time within a certain operation cycle.

[0059] The first preset formula refers to a calculation formula configured in advance for the change in coal consumption per unit time of the combustion system before and after the sludge is mixed and burned.

[0060] For example, in the embodiment of the present disclosure, the change in coal consumption per unit time of the combustion system ΔFC co，rs，s It can be calculated as follows:

[0061]

[0062] in,

[0063] ΔFC co，rs，s Refers to the change in coal consumption per unit time of the combustion system (tons / second);

[0064] Q refers to the actual effective heat of the boiler after burning sludge per unit time within a certain operating cycle (kJ / s);

[0065] η1 refers to the boiler efficiency after blending (%);

[0066] η0 refers to the boiler efficiency before blending (%);

[0067] m 污泥 Refers to the mass of dried sludge entering the furnace per unit time (tons / second);

[0068] NCV 污泥 Refers to the average low calorific value of the sludge entering the furnace for drying (GJ / ton);

[0069] NCV 煤 It refers to the monthly average lower calorific value of the coal received (GJ / ton).

[0070] Optionally, in some embodiments, the mass of dried sludge entering the furnace per unit time is determined by: determining the mass of the original incoming sludge per unit time, the moisture content of the sludge before drying, and the moisture content of the dried sludge; and substituting the mass of the original incoming sludge per unit time, the moisture content of the sludge before drying, and the moisture content of the dried sludge into a second preset formula to calculate the mass of dried sludge entering the furnace per unit time. In this manner, accurate calculation of the mass of dried sludge entering the furnace per unit time can be achieved based on the various parameters and the second preset formula.

[0071] For example, the mass of sludge entering the furnace for drying is m 污泥 The value of the water content can be determined by weighing according to the actual situation of the project or by calculating the change in moisture content before and after drying. The formula is as follows:

[0072]

[0073] in,

[0074] m 污泥 Refers to the mass of dried sludge entering the furnace per unit time (tons / second);

[0075] m 湿污泥 Refers to the mass of the original sludge entering the plant per unit time (tons / second);

[0076] ω 前 Refers to the moisture content of sludge before drying (%);

[0077] ω gh Refers to the moisture content of dried sludge (%).

[0078] Optionally, in some embodiments, the boiler efficiency after blending is determined based on the following method: determining the heat loss information of the boiler after blending, wherein the heat loss information of the boiler after blending includes: the exhaust heat loss rate after blending, the chemical incomplete combustion heat loss rate after blending, the mechanical incomplete combustion heat loss rate after blending, the boiler heat loss rate after blending, and other heat loss rates after blending; substituting the heat loss information of the boiler after blending into a third preset formula to calculate the boiler efficiency after blending. Thus, the boiler efficiency after blending can be accurately calculated by combining the heat loss information of the boiler after blending and the third preset formula.

[0079] For example, the boiler efficiency η1 after blending is calculated by the following formula:

[0080] η1=100%-(q 21 +q 31 +q 41 +q 51 +q 61 )

[0081] in,

[0082] η1 refers to the boiler efficiency after blending (%);

[0083] q 21 Refers to the exhaust heat loss rate after mixing;

[0084] q 31 Refers to the heat loss rate of incomplete combustion of chemical (gas) after mixing;

[0085] q 41 Refers to the mechanical (solid) incomplete combustion heat loss rate after mixing;

[0086] q 51 It refers to the heat loss rate of the boiler after mixing;

[0087] q 61 Refers to other heat loss rates after mixing.

[0088] Optionally, in some embodiments, the boiler efficiency before blending is determined based on the following method: determining the heat loss information of the boiler before blending, wherein the heat loss information of the boiler before blending includes: the exhaust heat loss rate before blending, the chemical incomplete combustion heat loss rate before blending, the mechanical incomplete combustion heat loss rate before blending, the boiler heat loss rate before blending, and other heat loss rates before blending; and substituting the heat loss information before blending into a fourth preset formula to calculate the boiler efficiency before blending. Thus, the heat loss information before blending and the fourth preset formula can be combined to accurately calculate the boiler efficiency before blending.

[0089] For example, the boiler efficiency η0 before blending is calculated by the following formula:

[0090] η0=100%-(q 20 +q 30 +q 40 +q 50 +q 60 )

[0091] η0 refers to the boiler efficiency before blending (%);

[0092] q 20 Refers to the heat loss rate of exhaust gas before mixing;

[0093] q 30 Refers to the heat loss rate of incomplete combustion of chemical (gas) before mixing;

[0094] q 40 Refers to the heat loss rate of mechanical (solid) incomplete combustion before mixing;

[0095] q 50 It refers to the heat loss rate of the boiler before mixing;

[0096] q 60 Refers to other heat loss rates before mixing.

[0097] S203: Determine the product of the change in coal consumption per unit time and the boiler operation time as the change in coal consumption of the combustion system before and after the sludge is mixed and burned.

[0098] Here, it may refer to the operating time of the boiler within a certain operating cycle.

[0099] For example, in the embodiment of the present disclosure, when calculating the change in coal consumption of the combustion system after sludge co-combustion, ΔFC co,rs When , it can be calculated as follows:

[0100] ΔFC co,rs =ΔFC co,rs，s ×t

[0101] in,

[0102] ΔFC co，rs Refers to the change in coal consumption in the combustion system before and after the sludge is mixed and burned (in tons);

[0103] ΔFC co，rs，s Refers to the change in coal consumption per second in the combustion system before and after the sludge is mixed (tons / second);

[0104] t refers to the boiler operating time (seconds) within a certain operating cycle.

[0105] In other words, the disclosed embodiments can determine the change in coal consumption per unit time in the combustion system before and after sludge co-combustion. The product of the change in coal consumption per unit time and the boiler operating time is determined as the change in coal consumption per unit time in the combustion system before and after sludge co-combustion. This allows accurate calculation of the change in coal consumption per unit time in the combustion system before and after sludge co-combustion by combining the change in coal consumption per unit time and the boiler operating time.

[0106] S204: Determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in calorific value of the coal in the combustion system before and after the sludge is mixed.

[0107] S205: Determine the product of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emissions from the coal combustion caused by the co-combustion of sludge.

[0108] The description of S204 and S205 can be found in the above embodiments, which will not be repeated here.

[0109] In this embodiment, the change in coal consumption per unit time of the combustion system before and after the sludge is added to the combustion system is determined; and the product of the change in coal consumption per unit time and the boiler operating time is determined as the change in coal consumption per unit time of the combustion system before and after the sludge is added to the combustion system. In this way, the change in coal consumption per unit time and the boiler operating time can be combined to accurately calculate the change in coal consumption per unit time of the combustion system before and after the sludge is added to the combustion system.

[0110] Figure 3 It is a structural schematic diagram of a device for calculating additional carbon dioxide emissions from coal combustion caused by the co-firing of sewage sludge, proposed in one embodiment of the present disclosure.

[0111] like Figure 3 As shown, the calculation device 30 for the additional carbon dioxide emissions caused by the burning of sewage sludge comprises:

[0112] The first determination module 301 is used to determine the change in coal consumption of the combustion system before and after the sludge is mixed, and the average low calorific value of the coal received during the target time interval;

[0113] The second determining module 302 is used to determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed;

[0114] The third determining module 303 is configured to determine the product of the change in calorific value of the coal and a preset carbon emission factor of the coal as the additional carbon dioxide emission caused by the combustion of sludge.

[0115] It should be noted that the above explanation of the method for calculating the additional carbon dioxide emissions caused by burning sludge with coal is also applicable to the device for calculating the additional carbon dioxide emissions caused by burning sludge with coal in this embodiment, and will not be repeated here.

[0116] In this embodiment, by determining the change in coal consumption of the combustion system before and after the sludge is mixed and burned, and the average low calorific value of the coal as received in the target time interval; determining the product of the change in coal consumption and the average low calorific value of the coal as received in the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned; and determining the product of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emissions from the coal mixed and burned. Thus, the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned, and the average low calorific value of the coal as received in the target time interval can be combined to accurately calculate the change in the calorific value of the coal in the combustion system before and after the sludge is mixed and burned, thereby effectively improving the accuracy and reliability of the obtained additional carbon dioxide emissions from the coal mixed and burned.

[0117] Figure 4 A block diagram of an exemplary computer device suitable for implementing embodiments of the present disclosure is shown. Figure 4 The computer device 12 shown is only an example and should not bring any limitation to the functionality and scope of use of the embodiments of the present disclosure.

[0118] like Figure 4 As shown, computer device 12 is implemented as a general-purpose computing device. Components of computer device 12 may include, but are not limited to, one or more processors or processing units 16, system memory 28, and a bus 18 that connects various system components (including system memory 28 and processing unit 16).

[0119] Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. Examples of such architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnection (PCI) bus.

[0120] The computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0121] The memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. The computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 34 may be configured to read and write non-removable, non-volatile magnetic media ( Figure 4 Not shown, often called a "hard drive").

[0122] although Figure 4 Not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a Compact Disc Read Only Memory (hereinafter referred to as: CD-ROM), a Digital Video Disc Read Only Memory (hereinafter referred to as: DVD-ROM), or other optical media) may be provided. In these cases, each drive can be connected to the bus 18 via one or more data medium interfaces. The memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the various embodiments of the present disclosure.

[0123] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may include an implementation of a network environment. Program modules 42 generally implement the functions and / or methods of the embodiments described herein.

[0124] The computer device 12 can also communicate with one or more external devices 14 (e.g., a keyboard, pointing device, display 24, etc.), one or more devices that enable human interaction with the computer device 12, and / or any device that enables the computer device 12 to communicate with one or more other computing devices (e.g., a network card, a modem, etc.). This communication can occur via an input / output (I / O) interface 22. Furthermore, the computer device 12 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via a network adapter 20. As shown, the network adapter 20 communicates with the other modules of the computer device 12 via a bus 18. It should be understood that, although not shown, other hardware and / or software modules can be used in conjunction with the computer device 12, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0125] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28 , such as implementing the method for calculating the additional carbon dioxide emissions caused by the co-firing of sewage sludge with coal mentioned in the above embodiment.

[0126] In order to implement the above embodiments, the present disclosure also proposes a non-temporary computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, it implements the method for calculating the additional carbon dioxide emissions caused by the burning of sludge in coal as proposed in the above embodiments of the present disclosure.

[0127] In order to implement the above embodiments, the present disclosure also proposes a computer program product. When the instruction processor in the computer program product executes, it executes the method for calculating the additional carbon dioxide emissions caused by burning sludge in coal as proposed in the above embodiments of the present disclosure.

[0128] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow from the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0129] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0130] It should be noted that, in the description of this disclosure, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0131] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0132] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0133] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0134] In addition, the functional units in the various embodiments of the present disclosure may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0135] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0136] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0137] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A method for calculating the additional carbon dioxide emissions from coal combustion caused by the co-combustion of sewage sludge, characterized in that: include: Determine the change in coal consumption in the combustion system before and after the sludge blending, as well as the average low calorific value of the coal received during the target time period; Determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed; The product of the change in the calorific value of the coal and the preset coal carbon emission factor is determined as the additional carbon dioxide emission caused by the burning of sludge.

2. The method according to claim 1, wherein The determination of the change in coal consumption of the combustion system before and after the sludge is mixed and burned includes: Determine the change in coal consumption per unit time in the combustion system before and after the sludge is mixed in; The product of the change in coal consumption per unit time and the boiler operation time is determined as the change in coal consumption of the combustion system before and after the sludge is mixed and burned.

3. The method according to claim 2, wherein The determination of the change in coal consumption per unit time of the combustion system before and after the sludge is mixed and burned includes: Determine relevant parameters, wherein the relevant parameters include: actual effective heat of the boiler after sludge co-combustion per unit time, boiler efficiency after co-combustion, boiler efficiency before co-combustion, mass of dried sludge fed into the furnace per unit time, and average low calorific value of dried sludge fed into the furnace; The average low calorific value of the coal received during the target time interval and the related parameters are substituted into the first preset formula to calculate the change in coal consumption per unit time of the combustion system before and after the sludge is mixed.

4. The method according to claim 3, wherein The mass of dried sludge entering the furnace per unit time is determined based on the following method: Determine the original incoming sludge mass per unit time, the moisture content of the sludge before drying, and the moisture content of the dried sludge; The mass of the original sludge entering the plant per unit time, the moisture content of the sludge before drying, and the moisture content of the dried sludge are substituted into a second preset formula to calculate the mass of the dried sludge entering the furnace per unit time.

5. The method according to claim 3, wherein The boiler efficiency after the blending is determined based on the following method: Determining the heat loss information of the boiler after the blending, wherein the heat loss information of the boiler after the blending includes: the exhaust heat loss rate after the blending, the chemical incomplete combustion heat loss rate after the blending, the mechanical incomplete combustion heat loss rate after the blending, the boiler heat loss rate after the blending, and other heat loss rates after the blending; The heat loss information of the boiler after the co-firing is substituted into a third preset formula to calculate the boiler efficiency after the co-firing.

6. The method according to claim 3, wherein The boiler efficiency before blending is determined based on the following method: Determining heat loss information of the boiler before blending, wherein the heat loss information of the boiler before blending includes: exhaust heat loss rate before blending, chemical incomplete combustion heat loss rate before blending, mechanical incomplete combustion heat loss rate before blending, boiler heat dissipation loss rate before blending, and other heat loss rates before blending; The heat loss information of the boiler before co-firing is substituted into a fourth preset formula to calculate the boiler efficiency before co-firing.

7. A device for calculating the additional carbon dioxide emissions from coal combustion caused by mixing sludge with coal, characterized in that: include: The first determination module is used to determine the change in coal consumption of the combustion system before and after the sludge is mixed, and the average low calorific value of the coal received during the target time interval; The second determining module is used to determine the product of the change in coal consumption and the average lower calorific value of the coal received during the target time interval as the change in the calorific value of the coal in the combustion system before and after the sludge is mixed; The third determination module is used to determine the product of the change in the calorific value of the coal and the preset coal carbon emission factor as the additional carbon dioxide emission of the coal caused by the burning of sludge.

8. A computer device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: in, The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 6.

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