Port typical infrastructure full life cycle carbon emission accounting method

Abstract

The invention relates to the technical field of carbon emission accounting, in particular to a port typical infrastructure full-life-cycle carbon emission accounting method, which comprises the following steps of determining a carbon emission accounting boundary of a port infrastructure full-life-cycle stage; determining the type of a carbon emission source to be checked; determining a carbon emission factor corresponding to each carbon emission source category; on the basis of the carbon emission accounting boundary, carbon emission corresponding to each carbon emission source category is obtained through accounting according to the carbon emission factors by adopting a clustering analysis and carbon emission coefficient method; summarizing the carbon emission corresponding to each carbon emission source category to obtain the sum of the carbon emission of each stage of the whole life cycle of the port infrastructure; displaying the carbon emission corresponding to each carbon emission source category in an accounting software interface; according to the invention, the carbon emission accounting of the typical infrastructure of the port can be completed efficiently and conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission accounting, and in particular to a method for calculating carbon emission over the entire life cycle of a typical port infrastructure. Background Art

[0002] How to scientifically and systematically calculate the carbon emissions of port infrastructure has become the focus of current research.

[0003] At present, the research on port carbon emission accounting at home and abroad mainly focuses on energy consumption and equipment use in the operation stage, and rarely involves carbon emission accounting for the entire life cycle of infrastructure. Existing carbon emission calculation methods include emission coefficient method, input-output method, mass balance method and actual measurement method. Among them, the emission coefficient method is widely used because its calculation standard is easy to unify and easy to operate. However, when these methods are applied to the carbon emission accounting of port infrastructure throughout its life cycle, there are still problems such as incomplete data and insufficient calculation accuracy. The Chinese invention patent application with publication number CN114048955A discloses a building carbon emission supervision system. By integrating basic data of building sites, comprehensive greenhouse gas data, energy consumption monitoring data, etc., the total carbon emissions of building sites in the region are classified and summarized to form a carbon emission file of the building site. The Chinese invention patent application with publication number CN114943459A discloses a carbon emission accounting system for service industry carbon emission entities. By overall monitoring and accounting for the carbon emissions of the energy part and the indirect carbon emissions of the non-energy part of each link of service industry production, the cost of carbon emission accounting is reduced and the efficiency and accuracy of carbon emission accounting are improved. However, the above invention patents do not involve carbon emission accounting for the entire life cycle of infrastructure.

[0004] Domestic carbon emission accounting for the life cycle of port transportation facilities is still in the stage of theoretical study and exploratory application. There is a lack of a full life cycle carbon emission accounting system that conforms to my country's characteristics, resulting in low efficiency in carbon emission accounting and difficulty in fully and accurately reflecting the carbon emissions of port infrastructure. Summary of the invention

[0005] In view of the above problems, the present invention provides a method for calculating carbon emissions over the entire life cycle of typical port infrastructure, which solves the technical problems in the prior art of inconsistent calculation methods, lack of standards, and unclear relationships between factors affecting carbon emissions.

[0006] The present invention provides a method for calculating carbon emissions of typical port infrastructure throughout its life cycle, comprising the following steps:

[0007] Step S1, determining the carbon emission accounting boundary of the whole life cycle of the port infrastructure; the whole life cycle stage includes the preparation stage, construction stage, operation stage, maintenance stage and demolition stage;

[0008] Step S2, determining the categories of carbon emission sources to be calculated; determining the carbon emission factors corresponding to each category of carbon emission sources; based on the carbon emission accounting boundary, using cluster analysis and carbon emission coefficient method, and calculating the carbon emissions corresponding to each category of carbon emission sources according to the carbon emission factors;

[0009] Step S3, summing up the carbon emissions corresponding to the various carbon emission source categories to obtain the sum of the carbon emissions at each stage of the entire life cycle of the port infrastructure;

[0010] Step S4: Visually display the carbon emissions corresponding to the various carbon emission source categories and the sum of the emissions at all stages of the port infrastructure life cycle.

[0011] Preferably, the step S1 specifically includes:

[0012] Step S1-1, determining the carbon emission accounting categories in the preparation stage, wherein the carbon emission accounting categories in the preparation stage specifically include: carbon emissions in the feasibility study, preliminary design study and construction drawing design process;

[0013] Step S1-2: determine the carbon emission accounting categories for the construction phase, operation phase, maintenance phase, and demolition phase. The carbon emission accounting categories for each phase specifically include: carbon emissions from the supply chain, on-site construction, operation and management activities, and waste material handling.

[0014] Preferably, in step S2, determining the categories of carbon emission sources to be accounted for specifically includes: determining the categories of carbon emission sources to be accounted for as: material production, transportation, equipment, personnel, waste material treatment, purchased resources and construction activities.

[0015] Preferably, in step S2, determining the carbon emission factor corresponding to each carbon emission source category specifically includes: determining the carbon emission factor of each category in the carbon emission source category to be calculated based on current national standards, industry standards and enterprise standards.

[0016] Preferably, in step S2, based on the carbon emission accounting boundary, cluster analysis and carbon emission coefficient method are used to calculate the carbon emissions corresponding to each carbon emission source category according to the carbon emission factor, which specifically includes: calculating the carbon emissions of each carbon emission source category according to the following formula:

[0017] (1) Material production:

[0018]

[0019] Among them, E m is the carbon emission in the material production process, n is the number of sub-projects, i is the sub-project index, p is the number of material categories, k is the material category index, A iis the number of projects of the i-th project, N m,i,k is the quota consumption of the kth material in the i-th project, EF m,k is the carbon emission factor of the production process of the kth material;

[0020] (2) Transportation:

[0021]

[0022] Among them, E t is the carbon emission of the material production process, q is the number of types of transportation equipment, s is the index of the transportation equipment category, and N m,i,s is the total transportation volume of the sth type of transportation equipment for the i-th project, L k,s is the average off-site transportation distance for transporting the kth material to the sth equipment, EF t,s is the carbon emission factor per unit turnover of the sth type of transport equipment;

[0023] (3) Equipment:

[0024]

[0025] Among them, E e1 is the carbon emission of the equipment when the equipment quota consumption is known, m is the number of equipment types, j is the equipment type index, N e,i,j is the quota consumption of the j-type equipment in the i-th project, EF e,j is the carbon emission factor of the j-th equipment’s quota-shift consumption;

[0026]

[0027] Among them, E e2 is the carbon emission of the equipment when the equipment quota consumption is known, T e,i,j is the working time of the jth equipment in the i-th project, P e,f,j is the consumption per unit time of the fth energy consumed by the jth device, where f is the energy type index, EF f,j The carbon emission factor of the fth energy source consumed by the jth unknown equipment in a fixed unit (ship) shift;

[0028] (4) Personnel:

[0029]

[0030] Among them, E p is the carbon emission of personnel’s living energy consumption, N p,i is the total number of working days of all employees in the i-th project, EF p is the carbon emission factor of the construction workers’ living energy consumption;

[0031] (5) Waste material treatment:

[0032] Carbon emissions from energy consumption of waste material processing equipment E we The calculation formula is as follows:

[0033]

[0034] Carbon emissions from waste transportation wt The calculation formula is as follows:

[0035]

[0036] Carbon emissions from waste treatment w It is the sum of the two, and the calculation formula is as follows:

[0037] E w =E we +E wt

[0038] (6) Purchased resources:

[0039]

[0040] Among them, E d is the carbon emissions from purchased resources, N d,i,j The number of equipment that consumes the jth resource for the i-th project, B d,i,j is the unit consumption of the jth resource in the i-th project, EF d is the production carbon emission factor of the jth resource;

[0041] (7) Construction activities:

[0042] E o =(E p +E e +E c )×β

[0043] Among them, E o is the estimated carbon emissions of other construction projects, E p is the carbon emission of people’s living energy consumption, E e is the carbon emissions of construction machinery, E c is the carbon emission of construction machinery, and β is the empirical calculation coefficient of direct carbon emission of construction projects.

[0044] Preferably, the step S3 specifically includes:

[0045] Step S3-1: For the preparation stage, the carbon emissions of the feasibility study part, the preliminary design part, and the construction drawing design part are weighted and summed with a preset coefficient to obtain the sum of the carbon emissions in the preparation stage;

[0046] Step S3-2: For the construction phase, operation phase, maintenance phase and demolition phase, the carbon emissions of each sub-phase in each phase are summed to obtain the sum of carbon emissions.

[0047] Preferably, the step S3-1 specifically includes:

[0048] The carbon emissions in the preparation stage are estimated by the empirical coefficient method. The carbon emission calculation coefficients of the feasibility study part, preliminary design part, and construction drawing design part are calculated as 9%, 5%, and 3% of the total carbon emissions in the port construction stage. The expression is:

[0049] E cj =E cj1 +E cj2 +E cj3

[0050] E cj1 =E js ×9%

[0051] E cj2 =E js ×5%

[0052] E cj3 =E js ×3%

[0053] Among them, E cj is the carbon emissions during the construction phase, E cj1 ,E cj2 ,E cj3 They are the carbon emissions of the feasibility study part, preliminary design part, and construction drawing design part respectively.

[0054] Preferably, the step S3-2 specifically includes: calculating the sum of carbon emissions in the construction phase, operation phase, maintenance phase and demolition phase by the following formula:

[0055] (1) Construction phase:

[0056]

[0057] Among them, E js is the total carbon emissions during the construction phase, E js is the carbon emissions from the material production process during the construction phase, is the carbon emissions from the material transportation process during the construction period, is the carbon emissions from equipment operation during the construction phase, is the carbon emissions from the living energy consumption of construction workers during the construction phase, It is the carbon emissions from purchased resources;

[0058] (2) Operational stage:

[0059]

[0060] In the formula, E yy is the total carbon emissions during the operation phase, is the carbon emissions from major production activities, To assist in the carbon emissions of production activities, is the carbon emissions from subsidiary production activities, It is the carbon emissions from purchased resources;

[0061]

[0062] in, is the carbon emission of the equipment operation, T e,i,j is the working time of the jth device in the ith operation, P e,f,j EF is the unit time consumption of the fth energy by the jth device, f,j The energy carbon emission factor corresponding to the f-th energy consumed by the j-th device; is the carbon emissions from transportation within the factory. Carbon emissions from building operations within the plant; is the carbon emissions from the living energy consumption of on-the-job personnel during the operation phase, It is the carbon emissions from purchased resources;

[0063] (3) Maintenance phase:

[0064]

[0065] In the formula, E wh is the total carbon emissions during the maintenance phase, To maintain the carbon emissions of material production, To maintain the carbon footprint of material transportation, is the carbon emissions of the maintenance personnel's basic life. is the carbon emissions from equipment operation during the construction phase, It is the carbon emissions from purchased resources;

[0066] (4) Demolition stage:

[0067]

[0068] Among them, E cc is the total carbon emissions during the demolition phase, is the carbon emissions from the operation of the equipment during the demolition phase, is the carbon emission of the construction workers’ living energy consumption during the demolition phase, It is the carbon emissions from purchased resources.

[0069] Preferably, step S4 specifically includes: in the accounting software interface, using a pie chart or a bar chart to display the carbon emissions corresponding to each carbon emission source category; using a line chart or a stacked bar chart to display the carbon emissions change trend of the total emissions at each stage of the entire life cycle of the infrastructure; using a data table to display the carbon emissions of each stage, the total carbon emissions of each stage, and the total value and percentage of emissions of each category.

[0070] Compared with the prior art, the present invention has at least the following beneficial effects:

[0071] (1) This invention clearly defines the time and space scopes, and covers in detail the direct and indirect carbon emissions of typical port infrastructure from planning, construction, operation, maintenance to demolition. With comprehensive coverage, it can more accurately reflect the carbon emissions of the port throughout its life cycle, making up for the shortcomings of existing accounting methods.

[0072] (2) Based on existing research and standards, this paper clarifies the accounting boundaries of port carbon emissions and classifies carbon emission sources into six categories: material production, transportation, equipment, personnel, waste material treatment, purchased resources, and construction activities. Specific calculation methods and formulas are proposed for each type of carbon emission source, forming a unified calculation standard, which helps to achieve standardization and regularization in port carbon emission accounting.

[0073] (3) The present invention establishes a port carbon emission factor database and port carbon emission accounting software, making the carbon emission accounting process more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The drawings are only for the purpose of illustrating particular embodiments and are not to be construed as limiting the invention.

[0075] Figure 1 A flow chart of the carbon emission accounting method for the entire life cycle of typical port infrastructure provided by the present invention.

[0076] Figure 2 This is a structural diagram of the carbon emission accounting method for the entire life cycle of typical port infrastructure provided by the present invention.

[0077] Figure 3 A step diagram for calculating carbon emissions at each stage of the entire life cycle of port infrastructure provided by the present invention.

[0078] Figure 4 A relationship diagram of engineering categories at various stages of the entire life cycle of port infrastructure provided by the present invention.

[0079] Figure 5 This is a functional schematic diagram of the carbon emission calculation software provided by the present invention.

[0080] Figure 6 This is a schematic diagram of the carbon emissions results of a port during the entire life cycle operation stage provided by the present invention. DETAILED DESCRIPTION

[0081] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. In addition, the present invention can also be implemented in other ways different from those described herein, and therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0082] The present invention calculates the carbon emissions of typical port infrastructure throughout its life cycle, including direct carbon emissions and indirect carbon emissions generated during the preparation stage, construction stage, operation stage, maintenance stage, and demolition stage. Among them, direct carbon emissions are endogenous carbon emissions, which should include the carbon emissions directly generated by the port itself during each stage of its life cycle. Indirect carbon emissions are exogenous carbon emissions, which should include carbon emissions already generated by external production systems, such as material production, processing, transportation, and purchased electricity, heat, and water.

[0083] In order to illustrate the effectiveness of the method proposed by the present invention, the above technical solution of the present invention is described in detail below through a specific embodiment. Figure 1 As shown in the figure, a method for calculating carbon emissions over the entire life cycle of typical port infrastructure is disclosed. The specific implementation steps are as follows:

[0084] Step S1: Determine the carbon emission accounting boundary of the port infrastructure throughout its life cycle.

[0085] Step S1-1, determining the carbon emission accounting categories in the preparation stage, wherein the carbon emission accounting categories in the preparation stage specifically include: carbon emissions during feasibility study, preliminary design study and construction drawing design process.

[0086] The carbon emissions in the preparation stage of typical port infrastructure include three parts: feasibility study project, preliminary design study project, and construction drawing design study project. The carbon emission sources of feasibility study projects mainly come from various engineering projects. For example, in the engineering survey sub-project, carbon emissions are mainly generated from sub-projects such as hydrographic survey and depth measurement. In the outdoor survey and exploration sub-project, carbon emissions are mainly generated from sub-projects such as water survey and geotechnical survey. The carbon emission sources of preliminary design projects mainly come from various experimental projects. For example, carbon emissions generated by the operation and maintenance of experimental equipment and the operation of participating equipment in projects such as hydraulic model experiments, pile tests, ship model navigation experiments, ship maneuvering simulation experiments, and ship mooring experiments. The carbon emission sources of construction drawing design projects mainly come from the preparation and construction projects. Such as carbon emissions generated by transportation and layout of equipment and facilities during the preparation stage of the port, additional carbon emissions from urban traffic caused by port construction, carbon emissions from the reduction of green vegetation carbon sinks in the preparation area, and carbon emissions generated by the demolition of old buildings in the preparation area; carbon emissions generated by office building operations mainly come from purchased electricity, purchased heat, and purchased water resources; and office personnel carbon emissions include carbon emissions generated by office personnel accommodation, catering, heating and cooling, lighting, use of electrical appliances, commuting and travel, and other activities.

[0087] Step S1-2: determine the carbon emission accounting categories for the construction phase, operation phase, maintenance phase, and demolition phase. The carbon emission accounting categories for each phase specifically include: carbon emissions from the supply chain, on-site construction, operation and management activities, and waste material handling.

[0088] (1) The construction stage of typical port infrastructure is one of the main stages of carbon emissions in the entire life cycle of port infrastructure, which is mainly divided into three parts: supply chain, on-site construction, and waste material treatment. The supply chain includes materials and equipment of the project entity and typical activities such as purchased electricity, heat, and water. The on-site construction part includes construction site construction, construction equipment operation, construction personnel, and the impact of construction conditions. The waste material treatment part includes solid waste treatment equipment, solid waste biological treatment carbon emissions, wastewater treatment and discharge, and waste transportation equipment. Among them, the carbon emissions of the supply chain are all exogenous carbon emissions, that is, this part of carbon emissions is the carbon emissions that have been generated by the external production system. In addition to the carbon emissions generated by the purchased electric and hot water required during the construction phase, the carbon emissions generated by the project entity materials / equipment come from the production, transportation, and off-site processing of materials / equipment; the carbon emission sources of on-site construction mainly come from various construction projects. Among them, the carbon emissions generated by the construction of the construction site include the carbon emissions generated by the living energy consumption of construction personnel and the energy consumption of construction machinery during the construction of centralized offices, living houses, public houses, and production houses during the construction of the construction site. The carbon emissions generated by the operation of construction equipment include the carbon emissions corresponding to the electricity consumed by construction equipment and the energy consumption of fossil fuels, including self-generating equipment; the construction personnel are the same as those in the preparation stage, including carbon emissions generated by office staff accommodation, catering, heating and cooling, lighting, use of electrical appliances, commuting and travel, etc.; the carbon emissions increased by the influence of construction conditions refer to the additional carbon emissions caused by the increase in energy consumption of construction equipment or the increase in construction time due to many factors such as winter, rainy season, night, geological landforms, meteorology and hydrology, and interference with water transport routes during the construction process; solid waste treatment carbon emissions mainly come from carbon emissions generated by solid waste landfill and recycling equipment.

[0089] (2) Determine the carbon emission accounting categories during the operation phase, wherein the carbon emission accounting categories during the operation phase specifically include: carbon emissions from the supply chain during the operation phase, operation management activities, and waste material treatment during the operation phase.

[0090] The operation stage of typical port infrastructure is also one of the main stages of carbon emissions in the entire life cycle of port infrastructure, mainly including three parts: supply chain, operation and management activities, and waste material treatment. Among them, compared with the construction stage, the supply chain does not have the production, transportation, and processing of materials and equipment. The carbon emission sources of waste material treatment are exactly the same as those in the construction stage. Operation and management activities include three parts: main production projects, auxiliary production projects, and ancillary production projects. Combined with the operational characteristics of the port, the operation and management activities are divided into three categories: main production activities, auxiliary production activities, and ancillary production activities. Carbon emissions from main production activities include loading and unloading operations, horizontal transportation operations within the port, warehouse operations, on-site lighting, and passenger operations within the port. Carbon emissions from auxiliary production activities include auxiliary production projects such as port vehicle and ship operations, railways within the factory area, locomotive transportation, machine repair operations, waiting buildings and production office building operations, and refrigerated box insulation. Carbon emissions from ancillary production activities include basic activities of production personnel and increased carbon emissions due to the impact of operating conditions. Among them, the categories of increased carbon emissions due to the impact of operating conditions are similar to those due to increased carbon emissions due to construction.

[0091] (3) The typical activities and carbon emission sources of the maintenance phase of typical port infrastructure are similar to those of the construction phase, both of which are composed of supply chain, on-site construction projects, and waste material treatment. Unlike the construction projects in the construction phase, the construction projects designed in the maintenance phase are smaller in volume and shorter in maintenance time. In addition, the on-site maintenance projects in the maintenance phase also include additional carbon emissions caused by the impact of construction and carbon emissions generated by the physical demolition of the original project.

[0092] (4) The typical activities and carbon emission sources of the demolition phase of typical port infrastructure are similar to those of the construction phase, both of which are composed of supply chain, on-site construction projects, and waste material treatment. The difference from the construction phase is that the demolition phase does not involve material production, processing and transportation, and the waste material transportation and treatment part of the demolition phase involves a large proportion of engineering volume, which is one of the main sources of carbon emissions in the demolition phase.

[0093] Step S2, determine the carbon emission source category to be calculated; determine the carbon emission factor corresponding to each carbon emission source category; based on the carbon emission accounting boundary, use cluster analysis and carbon emission coefficient method to calculate the carbon emissions corresponding to each carbon emission source category according to the carbon emission factor.

[0094] In this step, the categories of carbon emission sources to be accounted for during the entire life cycle are determined through the categories in Table 1.

[0095] Table 1

[0096]

[0097] The emission coefficient method is based on the energy-to-carbon dioxide conversion coefficients of various stages such as material production, transportation, construction, and demolition. That is, the specific carbon emissions can be calculated by obtaining the commonly used energy consumption emission factors and multiplying the carbon emission factors under the unit caliber by the basic values ​​calculated based on the project list, construction drawings, pricing documents, etc. The expression of the emission coefficient method is:

[0098] GHG=Q i ×EF i

[0099] Among them, GHG is greenhouse gas emissions, Q i Carbon emissions consumption, EF i is the equivalent carbon emission factor of carbon emissions.

[0100] The advantages of the emission coefficient method are that the calculation standard is easy to unify, the project-related factors are easier to check through specifications or official documents, the project list is more detailed, so there will be fewer accidental errors, different calculation units are easier to calculate by the same method, and it is easy to form calculation specifications. Therefore, the present invention adopts the carbon emission coefficient method as the basic method for carbon emission accounting.

[0101] The present invention adopts the carbon emission coefficient method as the accounting method, so the carbon emission factors and calculation coefficients involved in various carbon emission sources need to determine a unified and authoritative source to ensure that the results are reliable, accurate and precise. Because the present invention mainly focuses on domestic ports and infrastructure in my country, the carbon emission factors adopt the carbon emission factor database formulated domestically. A more comprehensive carbon emission factor adoption value has been summarized in my country’s current national standards, industry standards, and enterprise standards. The emission factors of the six types of carbon emission sources mentioned above are all determined from the standards and databases currently implemented in my country. Combining the characteristics of the port’s entire life cycle and typical carbon emission activities, the sources of various carbon emission factors are sorted out as shown in Table 2:

[0102] Table 2

[0103]

[0104]

[0105] For each category of carbon emission sources, the present invention provides corresponding calculation methods respectively.

[0106] (1) Carbon emission accounting for material production. After breaking down each stage of material production into sub-projects, calculate the carbon emission of each material under the sub-project. After the calculation is completed, perform a cluster analysis on all materials to obtain the total carbon emission generated by material production under the sub-project. The calculation formula is as follows:

[0107]

[0108] Among them, E m is the carbon emission in the material production process, in kgCO2, n is the number of sub-projects, i is the sub-project index, p is the number of material categories, k is the material category index, A i is the number of projects of the i-th project, N m,i,k The quota consumption of the kth material of the i-th project, in kg or m 3 , E.F. m,k is the carbon emission factor of the production process of the kth material, in kgCO2 / kg. The data required for calculation are the quota consumption and the carbon emission factor of the material production process.

[0109] (2) Transportation carbon emissions accounting. After breaking down each stage of the project into sub-projects, calculate the carbon emissions generated by each type of transportation equipment under the sub-project. After the calculation is completed, perform a cluster analysis on all types of transportation equipment to obtain the total carbon emissions generated by the material / equipment transportation process under the sub-project. The calculation formula is as follows:

[0110]

[0111] Among them, E t is the carbon emission in the material production process, in kgCO2, q is the number of types of transportation equipment, s is the index of the transportation equipment category, N m,i,s The total transportation volume of the sth type of transportation equipment for the ith project, in kg or m 3 , L k,s The average off-site transportation distance for transporting the kth material by the sth equipment, in km, EF t,s is the carbon emission factor per unit turnover of the sth type of transport equipment, in kgCO2 / (kg km). The data required for the calculation are the total amount of material transported, the average off-site transport distance, and the carbon emission factor per unit turnover of the transport equipment.

[0112] (3) Carbon emission accounting for equipment. Similarly, each stage of the project is broken down into sub-projects, and the carbon emissions generated by the operation of each type of equipment under the sub-project are calculated. After the calculation is completed, a cluster analysis is performed on all equipment types to obtain the total carbon emissions generated by the operation of the equipment under the sub-project. When the quota of equipment is known, the calculation formula is as follows:

[0113]

[0114] Among them, E e1 is the carbon emission of the equipment when the equipment quota consumption is known, in kgCO2, m is the number of equipment types, j is the equipment type index, N e,i,jis the quota unit (ship) shift consumption of the jth type of equipment in the i-th project, in units of unit (ship) shift, EF e,j is the carbon emission factor of the j-th type of equipment's quota unit (ship) shift consumption, in units of kgCO2 / unit shift or kgCO2 / ship shift. The data required for calculation are the quota unit (ship) shift consumption and the carbon emission factor of the equipment's quota unit (ship) shift consumption.

[0115] When the equipment quota consumption is unknown, carbon emissions can be calculated based on energy type and working hours. The calculation formula is as follows:

[0116]

[0117] Among them, E e2 It is the carbon emission of the equipment when the equipment quota consumption is known, in kgCO2, T e,i,j is the working time of the jth device in the i-th project, in h, P e,f,j The consumption per unit time of the fth energy consumed by the jth device, where f is the energy type index in kw or kg / h or m 3 / h, EF f,j is the carbon emission factor of the fth energy consumed by the jth unknown equipment quota (ship) shift. The data required for calculation are the working time of the equipment, the energy consumption per unit time, and the carbon emission factor of energy consumption.

[0118] (4) Calculation of carbon emissions from personnel. After breaking down each stage of the project into sub-projects, calculate the carbon emissions generated by office and construction personnel involved in each sub-project, and cluster and accumulate to obtain the total carbon emissions generated by the living energy consumption of office and construction personnel in the sub-project. The calculation formula is as follows:

[0119]

[0120] Among them, E p is the carbon emission of personnel’s living energy consumption, N p,i is the total number of working days of all employees in the i-th project, in working days, EF p The carbon emission factor of the construction workers' living energy consumption is in kgCO2 / worker. The data required for calculation are the total number of working days and the carbon emission factor of the construction workers' living energy consumption.

[0121] (5) Calculation of carbon emissions from waste material treatment. After breaking down each stage of the project into sub-projects, calculate the carbon emissions generated by the energy consumption of waste material treatment equipment and the carbon emissions generated by the waste material transportation process under each sub-project. The calculation methods for these two parts of carbon emissions are the same as those for equipment carbon emissions and transportation carbon emissions.

[0122] Carbon emissions from energy consumption of waste material processing equipment Ewe The calculation formula is as follows:

[0123]

[0124] Carbon emissions from waste transportation wt The calculation formula is as follows:

[0125]

[0126] Carbon emissions from waste treatment w It is the sum of the two, and the calculation formula is as follows:

[0127] E w =E we +E wt

[0128] (6) Calculation of carbon emissions from purchased resources. After breaking down each stage of the project into sub-projects, calculate the consumption of each power-consuming, energy-consuming, and water-consuming equipment under the sub-project, multiply it by the production carbon emission factor of the corresponding resource to obtain the carbon emissions of each equipment. After cumulative calculation, perform cluster analysis on all resource types to obtain the total carbon emissions generated by power generation, heat generation, and water supply under the sub-project. The calculation formula is as follows:

[0129]

[0130] Among them, E d is the carbon emissions from purchased resources, in kgCO2, N d,i,j The number of devices that consume the jth resource for the i-th project, in units, B d,i,j is the unit consumption of the jth resource of the i-th project, in kWh / Gj / m 3 , E.F. d is the carbon emission factor of the jth resource, in kgCO2 / kWh or kgCO2 / Gj or kgCO2 / m 3 The data required for the calculation are the number of equipment, unit consumption of resources, and carbon emission factors for power generation, heat generation, and water supply.

[0131] (7) Calculation of carbon emissions from construction activities. When there are other construction projects at various stages of the port's life cycle that include personnel, equipment, and construction conditions that affect the three types of carbon emissions, an empirical carbon emission calculation coefficient can be used for estimation. The calculation formula is as follows:

[0132] E o =(E p +E e +E c )×β

[0133] Among them, E ois the estimated carbon emissions of other construction projects, E p is the carbon emission of people’s living energy consumption, E e is the carbon emissions of construction machinery, E c is the carbon emission of construction machinery, and β is the empirical calculation coefficient of direct carbon emission of construction projects, expressed in percentage.

[0134] Step S3: Summarize the carbon emissions corresponding to the various carbon emission source categories to obtain the sum of the carbon emissions at each stage of the entire life cycle of the port infrastructure.

[0135] Based on the carbon emission sources of each life cycle stage listed in Table 1, the carbon emission composition and calculation method of each stage can be summarized:

[0136] (1) Calculation method of carbon emissions in the preparation stage. Carbon emissions in the preparation stage are estimated based on carbon emissions in the construction stage using the empirical coefficient method. The carbon emission calculation coefficients for the feasibility study, preliminary design, and construction drawing design parts shall preferably use empirical data. In the absence of empirical data, they shall be calculated based on 9%, 5%, and 3% of the total carbon emissions in the port construction stage. The expression is:

[0137] E cj =E cj1 +E cj2 +E cj3

[0138] E cj1 =E js ×9%

[0139] E cj2 =E js ×5%

[0140] E cj3 =E js ×3%

[0141] Among them, E cj is the carbon emissions during the construction phase, E cj1 ,E cj2 ,E cj3 They are the carbon emissions of the feasibility study part, preliminary design part, and construction drawing design part respectively.

[0142] That is, the total carbon emissions in the preparation phase can be estimated based on the total carbon emissions in the construction phase:

[0143] E cj =E js ×17%

[0144] (2) Calculation method of carbon emissions during the construction phase:

[0145]

[0146] Among them, E js is the total carbon emissions during the construction phase, E js is the carbon emissions from the material production process during the construction phase, is the carbon emissions from the material transportation process during the construction period, is the carbon emissions from equipment operation during the construction phase, is the carbon emissions from the living energy consumption of construction workers during the construction phase, It is the carbon emission of purchased resources, and the unit is kgCO2.

[0147] (3) Calculation method of carbon emissions during the operation phase:

[0148]

[0149] In the formula, E yy is the total carbon emissions during the operation phase, is the carbon emissions from major production activities, To assist in the carbon emissions of production activities, is the carbon emissions from subsidiary production activities, It is the carbon emissions from purchased resources.

[0150] Among them, the calculation method of main production activities is:

[0151]

[0152] In the formula, is the carbon emissions from major production activities, is the carbon emission of the equipment operation, in kgCO2, T e,i,j is the working time of the jth device in the ith operation, in h, P e,f,j The unit time consumption of the fth energy by the jth device, in kw or kg / h or m 3 / h. EF f,j The carbon emission factor of the energy corresponding to the fth energy consumed by the jth device is kgCO2 / kWh. The carbon emission factor of electricity consumption adopts the empirical coefficient 0.5703tCO2 / MWh

[0153] Secondly, the calculation method for auxiliary production activities is:

[0154]

[0155] In the formula, The total carbon emissions from auxiliary production activities, is the carbon emissions from transportation within the factory. It is the carbon emissions from the operation of buildings within the factory, mainly carbon emissions from purchased resources.

[0156] Finally, the calculation method for subsidiary production carbon emissions is:

[0157]

[0158] In the formula, is the carbon emissions from purchased resources, in kgCO2. It is the carbon emission of the living energy consumption of the on-the-job personnel during the operation phase, in kgCO2. It is the carbon emission of purchased resources, in kgCO2.

[0159] (4) Calculation method of carbon emissions during the maintenance phase:

[0160]

[0161] In the formula, E wh is the total carbon emissions during the maintenance phase, To maintain the carbon emissions of material production, To maintain the carbon footprint of material transportation, is the carbon emissions of the maintenance personnel's basic life. is the carbon emissions from equipment operation during the construction phase, It is the carbon emissions from purchased resources.

[0162] (5) Calculation method of carbon emissions during the demolition phase:

[0163]

[0164] Among them, E cc is the total carbon emissions during the demolition phase, is the carbon emissions from the operation of the equipment during the demolition phase, is the carbon emission of the construction workers’ living energy consumption during the demolition phase, It is the carbon emission of purchased resources, and the unit is kgCO2.

[0165] Step S4: Visually display the carbon emissions corresponding to the various carbon emission source categories and the sum of the emissions at all stages of the port infrastructure life cycle.

[0166] In some embodiments, specifically, the user interface may display these data in the form of charts and data tables. In the chart part, a pie chart or a bar chart is used to display the proportion of carbon emissions in each category, and a line chart or a stacked bar chart is used to display the trend of carbon emissions in each stage. In the data table part, the carbon emissions in each stage, the sum of emissions in each stage, and the emissions in each category are listed in detail, and statistical information such as total values ​​and percentages are provided so that users can intuitively understand and analyze carbon emissions.

[0167] Although the specific embodiments of the present invention have been described in a specific order, each action or step should be understood to require that such action or step be performed in the specific order shown or in a sequential order, or require that all illustrated actions or steps should be performed to obtain the desired result. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Certain features described in the context of a separate embodiment can also be implemented in a single implementation in combination. On the contrary, the various features described in the context of a single implementation can also be implemented in multiple implementations individually or in any suitable sub-combination.

[0168] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for calculating carbon emissions over the entire life cycle of typical port infrastructure, characterized in that: The following steps are involved: Step S1, determining the carbon emission accounting boundary of the whole life cycle of the port infrastructure; the whole life cycle stage includes the preparation stage, construction stage, operation stage, maintenance stage and demolition stage; Step S2: determining the category of carbon emission sources to be accounted for; Determine the carbon emission factor corresponding to each carbon emission source category; based on the carbon emission accounting boundary, use cluster analysis and carbon emission coefficient method to calculate the carbon emissions corresponding to each carbon emission source category according to the carbon emission factor; Step S3, summing up the carbon emissions corresponding to the various carbon emission source categories to obtain the sum of the carbon emissions at each stage of the entire life cycle of the port infrastructure; Step S4: Visually display the carbon emissions corresponding to the various carbon emission source categories and the sum of the emissions at all stages of the port infrastructure life cycle.

2. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 1 is characterized in that: The step S1 specifically includes: Step S1-1, determining the carbon emission accounting categories in the preparation stage, wherein the carbon emission accounting categories in the preparation stage specifically include: carbon emissions in the feasibility study, preliminary design study and construction drawing design process; Step S1-2: determine the carbon emission accounting categories for the construction phase, operation phase, maintenance phase, and demolition phase. The carbon emission accounting categories for each phase specifically include: carbon emissions from the supply chain, on-site construction, operation and management activities, and waste material handling.

3. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 2 is characterized in that: In step S2, determining the category of carbon emission sources to be calculated specifically includes: The categories of carbon emission sources to be accounted for are determined as: material production, transportation, equipment, personnel, waste material treatment, purchased resources and construction activities.

4. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 3 is characterized in that: In step S2, determining the carbon emission factor corresponding to each carbon emission source category specifically includes: Based on the current national standards, industry standards and enterprise standards, determine the carbon emission factors for each category of the carbon emission source categories to be accounted for.

5. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 4 is characterized in that: In the step S2, based on the carbon emission accounting boundary, cluster analysis and carbon emission coefficient method are used to calculate the carbon emissions corresponding to each carbon emission source category according to the carbon emission factor, which specifically includes: calculating the carbon emissions of each carbon emission source category according to the following formula: (1) Material production: Among them, E m is the carbon emission in the material production process, n is the number of sub-projects, i is the sub-project index, p is the number of material categories, k is the material category index, A i is the number of projects of the i-th project, N m,i,k is the quota consumption of the kth material in the i-th project, EF m,k is the carbon emission factor of the production process of the kth material; (2) Transportation: Among them, E t is the carbon emission of the material production process, q is the number of types of transportation equipment, s is the index of the transportation equipment category, and N m,i,s is the total transportation volume of the sth type of transportation equipment for the i-th project, L k,s is the average off-site transportation distance for transporting the kth material to the sth equipment, EF t,s is the carbon emission factor per unit turnover of the sth type of transport equipment; (3) Equipment: Among them, E e1 is the carbon emission of the equipment when the equipment quota consumption is known, m is the number of equipment types, j is the equipment type index, N e,i,j is the quota consumption of the j-type equipment in the i-th project, EF e,j is the carbon emission factor of the j-th equipment’s quota-shift consumption; Among them, E e2 is the carbon emission of the equipment when the equipment quota consumption is known, T e,i,j is the working time of the jth equipment in the i-th project, P e,f,j is the consumption per unit time of the fth energy consumed by the jth device, where f is the energy type index, EF f,j The carbon emission factor of the fth energy source consumed by the jth unknown equipment in a fixed unit (ship) shift; (4) Personnel: Among them, E p is the carbon emission of personnel’s living energy consumption, N p,i is the total number of working days of all employees in the i-th project, EF p is the carbon emission factor of the construction workers’ living energy consumption; (5) Waste material treatment: Carbon emissions from energy consumption of waste material processing equipment E we The calculation formula is as follows: Carbon emissions from waste transportation wt The calculation formula is as follows: Carbon emissions from waste treatment w It is the sum of the two, and the calculation formula is as follows: AND w =And we +E wt (6) Purchased resources: Among them, E d is the carbon emissions from purchased resources, N d,i,j The number of equipment that consumes the jth resource for the i-th project, B d,i,j is the unit consumption of the jth resource in the i-th project, EF d is the production carbon emission factor of the jth resource; (7) Construction activities: AND o =(And p +E e +E c )×β Among them, E o is the estimated carbon emissions of other construction projects, E p is the carbon emission of people’s living energy consumption, E e is the carbon emissions of construction machinery, E c is the carbon emission of construction machinery, and β is the empirical calculation coefficient of direct carbon emission of construction projects.

6. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 5 is characterized in that: The step S3 specifically includes: Step S3-1: For the preparation stage, the carbon emissions of the feasibility study part, the preliminary design part, and the construction drawing design part are weighted and summed with a preset coefficient to obtain the sum of the carbon emissions in the preparation stage; Step S3-2: For the construction phase, operation phase, maintenance phase and demolition phase, the carbon emissions of each sub-phase in each phase are summed to obtain the sum of carbon emissions.

7. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 6 is characterized in that: The step S3-1 specifically includes: The carbon emissions in the preparation stage are estimated by the empirical coefficient method. The carbon emission calculation coefficients of the feasibility study part, preliminary design part, and construction drawing design part are calculated as 9%, 5%, and 3% of the total carbon emissions in the port construction stage. The expression is: AND cj =And cj1 +E cj2 +E cj3 AND cj1 =And js ×9% AND cj2 =And js ×5% AND cj3 =And js ×3% Among them, E cj is the carbon emissions during the construction phase, E cj1 ,E cj2 ,E cj3 They are the carbon emissions of the feasibility study part, preliminary design part, and construction drawing design part respectively.

8. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 7 is characterized in that: The step S3-2 specifically includes: calculating the sum of carbon emissions in the construction phase, operation phase, maintenance phase and demolition phase by the following formula: (1) Construction phase: Among them, E js is the total carbon emissions during the construction phase, E js is the carbon emissions from the material production process during the construction phase, is the carbon emissions from the material transportation process during the construction period, is the carbon emissions from equipment operation during the construction phase, is the carbon emissions from the living energy consumption of construction workers during the construction phase, It is the carbon emissions from purchased resources; (2) Operational stage: In the formula, E yy is the total carbon emissions during the operation phase, is the carbon emissions from major production activities, To assist in the carbon emissions of production activities, is the carbon emissions from subsidiary production activities, It is the carbon emissions from purchased resources; in, is the carbon emission of the equipment operation, T e,i,j is the working time of the jth device in the ith operation, P e,f,j EF is the unit time consumption of the fth energy by the jth device, f,j The energy carbon emission factor corresponding to the f-th energy consumed by the j-th device; is the carbon emissions from transportation within the factory. Carbon emissions from building operations within the plant; is the carbon emissions from the living energy consumption of on-the-job personnel during the operation phase, It is the carbon emissions from purchased resources; (3) Maintenance phase: In the formula, E wh is the total carbon emissions during the maintenance phase, To maintain the carbon emissions of material production, To maintain the carbon footprint of material transportation, is the carbon emissions of the maintenance personnel's basic life. is the carbon emissions from equipment operation during the construction phase, It is the carbon emissions from purchased resources; (4) Demolition stage: Among them, E cc is the total carbon emissions during the demolition phase, is the carbon emissions from the operation of the equipment during the demolition phase, is the carbon emission of the construction workers’ living energy consumption during the demolition phase, It is the carbon emissions from purchased resources.

9. The method for calculating carbon emissions of typical port infrastructure throughout its life cycle according to claim 8 is characterized in that: The step S4 specifically includes: In the accounting software interface, use pie charts or bar charts to display the carbon emissions corresponding to each carbon emission source category; Use line graphs or stacked bar graphs to show the trend of carbon emissions for each stage of the infrastructure life cycle; Use data tables to display the carbon emissions at each stage, the total carbon emissions at each stage, and the total value and percentage of emissions in each category.

Images