Method and model for correcting carbon emission of domestic building materials
By entering the list analysis data in domestic literature into the life cycle evaluation software and comparing it with references, the inaccurate carbon emission data of building materials caused by unclear accounting boundaries and timeliness are solved, and more accurate carbon emission corrections and Considerations on carbon emission flow throughout the life cycle.
Patent Information
- Application Number
- CN202411323860.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2024-12-27
AI Technical Summary
The carbon emissions of domestic building materials recorded in the existing literature are inaccurate due to unclear accounting boundaries or timeliness issues, resulting in large errors in subsequent carbon emission calculation values.
By obtaining the list analysis data in domestic literature, input it into the life cycle evaluation software, selecting preset building materials models and evaluation methods, performing correction calculations, and comparing them with references with good timeliness to ensure the corrected carbon emissions Data accuracy.
Through the processing of the life cycle evaluation software, the revised carbon emission data of building materials is more accurate, and the full life cycle carbon emission flow that meets the domestic process level is reduced, reducing calculation errors.
Smart Images
Figure CN119204822A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of carbon emission, and in particular to a method and model for correcting carbon emission of domestic building materials. Background Art
[0002] As the global climate change problem becomes more prominent, carbon emissions in the construction industry have attracted much attention. The carbon emissions in the construction industry are mainly composed of carbon emissions from building materials, construction, building operations, demolition, etc. The carbon emissions from building materials mainly come from the production, transportation, use and treatment of building materials. At present, when it is necessary to use building materials carbon emissions (carbon emissions can also be called carbon emission factors), it is usually necessary to find domestic and foreign building materials carbon emissions literature, and then use the building materials carbon emissions recorded in a certain document as the subsequent usage value. However, due to unclear boundaries of carbon emission accounting or other reasons, some domestic documents record inaccurate building materials carbon emissions, which are relatively large deviations from the building materials carbon emissions recorded in other documents. If the building materials carbon emissions with large deviations are used directly, it will lead to large errors in the subsequent carbon emission calculation values. Summary of the invention
[0003] The present invention provides a method and model for correcting carbon emissions from domestic building materials, so as to solve the technical problem that carbon emissions from building materials recorded in some domestic documents have large deviations.
[0004] In order to solve the above technical problems, the present invention provides a method for correcting carbon emissions from domestic building materials, comprising the following steps:
[0005] Obtain domestic literature covering carbon emissions from building materials;
[0006] Determine whether the accounting boundaries used in the domestic literature to calculate the carbon emissions of the building materials are clear;
[0007] If the accounting boundary is unclear, then obtain the inventory analysis data used to calculate the carbon emissions of the building materials in the domestic literature;
[0008] inputting the inventory analysis data into life cycle assessment software;
[0009] Selecting a preset building material model and evaluation method in the life cycle assessment software;
[0010] The life cycle assessment software is run to obtain the revised carbon emissions of domestic building materials.
[0011] Optionally, between the step of obtaining the inventory analysis data from the domestic literature for calculating the carbon emissions of the building materials and the step of inputting the inventory analysis data into the life cycle assessment software, the following steps are also included:
[0012] Obtain the publication date of the domestic document;
[0013] Determine whether the time period between the publication date and the current date is greater than a preset first threshold;
[0014] If not, then the step of inputting the inventory analysis data into life cycle assessment software is performed.
[0015] Optionally, the first threshold is two years.
[0016] Optionally, after the step of obtaining the corrected domestic building materials carbon emissions, the following steps are also included:
[0017] Obtain domestic references that contain building materials carbon emissions and have clear accounting boundaries for calculating building materials carbon emissions;
[0018] The corrected domestic building materials carbon emissions are compared with the building materials carbon emissions in the domestic reference literature. If the difference between the two is less than a preset second threshold, the corrected domestic building materials carbon emissions are determined to be more accurate; if the difference between the two is greater than the second threshold, the corrected domestic building materials carbon emissions are determined to be inaccurate.
[0019] Optionally, there are multiple references.
[0020] The present invention also provides a model for correcting carbon emissions from domestic building materials, including the following modules:
[0021] The acquisition module is used to obtain domestic literature containing carbon emissions of building materials;
[0022] A judgment module, used to judge whether the accounting boundary used to calculate the carbon emissions of the building materials in the domestic literature is clear;
[0023] If the accounting boundary is unclear, the acquisition module is further used to acquire inventory analysis data used to calculate the carbon emissions of the building materials in the domestic literature;
[0024] An input module for inputting the inventory analysis data into the life cycle assessment software;
[0025] A selection module for selecting a preset building material model and evaluation method in the life cycle assessment software;
[0026] The operation module is used to run the life cycle assessment software to obtain the corrected domestic building materials carbon emissions.
[0027] Optionally, the acquisition module is further used to acquire the publication date of the domestic document;
[0028] The judgment module is also used to judge whether the time period between the publication date and the current date is greater than a preset first threshold; if not, the input module executes the step of inputting the inventory analysis data into the life cycle assessment software.
[0029] Optionally, the first threshold is two years.
[0030] Optionally, the acquisition module is further used to perform the following steps:
[0031] Obtain domestic references that contain building materials carbon emissions and have clear accounting boundaries for calculating building materials carbon emissions;
[0032] The corrected domestic building materials carbon emissions are compared with the building materials carbon emissions in the domestic reference literature. If the difference between the two is less than a preset second threshold, the corrected domestic building materials carbon emissions are determined to be more accurate; if the difference between the two is greater than the second threshold, the corrected domestic building materials carbon emissions are determined to be inaccurate.
[0033] Optionally, there are multiple domestic references.
[0034] The present invention provides a method and model for correcting domestic building materials carbon emissions, which uses LCA software to process and calculate the inventory analysis data in existing domestic literature. The method uses domestic literature as the data basis, and the energy and carbon input-output conditions of each link of the mining, production, transportation, use and treatment of building materials raw materials that meet the domestic process level, combined with the LCA carbon emission tracing calculation model, can fully consider the carbon emission flows in different links of the entire life cycle, thereby making the corrected domestic building materials carbon emissions more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a flow chart of a method for correcting carbon emissions of domestic building materials provided by one embodiment of the present invention. DETAILED DESCRIPTION
[0036] In order to make the purpose, advantages and features of the present invention clearer, the following is a further detailed description of a method and model for correcting carbon emissions of domestic building materials proposed by the present invention in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.
[0037] In the description of the present invention, the terms "first", "second", etc. are added for the convenience of description and reference, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined by the terms "first", "second", etc. may explicitly or implicitly include one or more of the features.
[0038] This embodiment provides a method for correcting carbon emissions from domestic building materials, including the following steps:
[0039] S1. Obtain domestic literature containing carbon emissions from building materials; the building materials may be materials such as steel, cement, glass, bricks, etc., and the literature may be domestic and foreign industry standard documents, research reports or papers, etc.
[0040] S2. Determine whether the accounting boundary used to calculate the carbon emissions of the building materials in the domestic literature is clear;
[0041] S3. If the calculation boundary is not clear, obtain the inventory analysis data used to calculate the carbon emissions of building materials in the domestic literature; the steel carbon emissions recorded in the literature corresponding to Table 1 are 4400kg CO2eq / t, and the scrap steel / crude steel ratio is 16.28%.
[0042] Table 1: Inventory analysis data corresponding to steel carbon emissions in a domestic literature
[0043]
[0044] S4. Input the inventory analysis data into life cycle assessment software; life cycle assessment software refers to LCA (Life Cycle Assessment) software. When using, authoritative life cycle assessment software, i.e. authoritative LCA software, is preferred so that the revised domestic building materials carbon emissions are more accurate. Authoritative LCA software refers to life cycle assessment software with accurate calculation results and is frequently used in the industry.
[0045] S5. Select the preset building material model and evaluation method in the life cycle assessment software; the building material model can be Ecoinvent 3.0, and the evaluation method can be IPCC (GWP100a). IPCC refers to the Intergovernmental Panel on Climate Change. GWP100a refers to Global Warming Potential over 100years, that is, the global warming trend of greenhouse gases over 100 years.
[0046] S6. Run the life cycle assessment software to obtain the revised domestic building materials carbon emissions. After obtaining the revised software building materials carbon emissions, the results can be output in the form of reports or charts. Table 1 After being processed by the LCA software, the revised steel carbon emissions are 2437kg CO2 eq / t.
[0047] This embodiment provides a method for correcting domestic building materials carbon emissions, which uses LCA software to process and calculate inventory analysis data in existing domestic literature. This method uses domestic literature as data basis, and the energy and carbon input-output conditions of each link such as mining, production, transportation, use and treatment of building materials raw materials that meet domestic technological levels. Combined with the LCA carbon emission tracing calculation model, it can fully consider the carbon emission flows in different links of the entire life cycle, thereby making the corrected domestic building materials carbon emissions more accurate.
[0048] Optionally, between step S3 and step S4, that is, between the step of obtaining the inventory analysis data for calculating the carbon emissions of the building materials in the software document and the step of inputting the inventory analysis data into the life cycle assessment software, the following steps are also included: obtaining the publication date of the domestic document; judging whether the time period from the publication date to the current date is greater than the preset first threshold; if not, executing the step of inputting the inventory analysis data into the life cycle assessment software. my country is currently in the practice period of the 3060 dual carbon target and low-carbon strategy. There is a possibility of optimization and upgrading and major changes in energy use and material production processes from 2021 to 2060, so special attention should be paid to the timeliness of the data. The first threshold is preferably two years. If the timeliness of the domestic document is good, the revised domestic building materials carbon emissions can be used directly. If the timeliness of the document is not good, the revised domestic building materials carbon emissions cannot be used directly, and its correction is of little significance.
[0049] Optionally, after step S6, i.e. the step of obtaining the corrected domestic building materials carbon emissions, the following steps are also included: obtaining domestic reference literature, which contains building materials carbon emissions and has clear accounting boundaries for calculating building materials carbon emissions; comparing the corrected domestic building materials carbon emissions with the building materials carbon emissions in the domestic reference literature, and if the difference between the two is less than a preset second threshold, determining that the corrected domestic building materials carbon emissions are more accurate; if the difference between the two is greater than the second threshold, determining that the corrected domestic building materials carbon emissions are inaccurate.
[0050] For the document corresponding to Table 1, the reference corresponding to the document can be the national standard "Building Carbon Emission Calculation Standard" or The ICE Database: ICE V3.0 (a carbon emission database in the UK). The steel carbon emissions recorded in the "Building Carbon Emission Calculation Standard" are 2350kg CO2 eq / t, and the steel carbon emissions recorded in The ICE Database: ICE V3.0 are 2360kg CO2 eq / t. The corrected steel carbon emissions are 2437kg CO2 eq / t, while the steel carbon emissions before correction are 4400kg CO2 eq / t. The second threshold can be set with different values or percentages according to different types of building materials. The closer the corrected domestic building materials carbon emissions are to the building materials carbon emissions in the reference, the more accurate the corrected results are. The corrected building materials carbon emissions are very different from the building materials carbon emissions in the reference, indicating that the corrected results are inaccurate.
[0051] Optionally, there are multiple domestic references. By comparing the revised domestic building materials carbon emissions with the building materials carbon emissions in multiple domestic references, it can be further confirmed that the revised domestic building materials carbon emissions are more accurate.
[0052] Based on the same technical concept as the above method for correcting carbon emissions from domestic building materials, this embodiment also provides a model for correcting carbon emissions from domestic building materials, including the following modules:
[0053] The acquisition module is used to obtain literature containing carbon emissions of domestic building materials;
[0054] A judgment module, used to judge whether the accounting boundary used to calculate the carbon emissions of the building materials in the domestic literature is clear;
[0055] If the accounting boundary is unclear, the acquisition module is further used to acquire inventory analysis data used to calculate the carbon emissions of the building materials in the domestic literature;
[0056] An input module for inputting the inventory analysis data into the life cycle assessment software;
[0057] A selection module for selecting a preset building material model and evaluation method in the life cycle assessment software;
[0058] The operation module is used to run the life cycle assessment software to obtain the corrected domestic building materials carbon emissions.
[0059] This embodiment provides a model for correcting domestic building materials carbon emissions, which uses LCA software to process and calculate the inventory analysis data in existing domestic literature. This method uses domestic literature as the data basis, and the energy and carbon input-output conditions of each link of the mining, production, transportation, use and treatment of building materials raw materials that meet the domestic technological level. Combined with the LCA carbon emission tracing calculation model, it can fully consider the carbon emission flows in different links of the entire life cycle, thereby making the corrected domestic building materials carbon emissions more accurate.
[0060] Optionally, the acquisition module is further used to acquire the publication date of the domestic document;
[0061] The judgment module is also used to judge whether the time period from the publication date to the current date is greater than a preset first threshold; if not, the input module executes the step of inputting the inventory analysis data into the life cycle assessment software. The first threshold is preferably two years. If the timeliness of the domestic literature is good, the corrected domestic building materials carbon emissions can be used directly. If the timeliness of the domestic literature is not good, the corrected domestic building materials carbon emissions cannot be used directly, and its correction is of little significance.
[0062] Optionally, the acquisition module is further used to perform the following steps:
[0063] Obtain domestic references that contain building materials carbon emissions and have clear accounting boundaries for calculating building materials carbon emissions;
[0064] The corrected domestic building materials carbon emissions are compared with the building materials carbon emissions in the domestic reference literature. If the difference between the two is less than a preset second threshold, the corrected domestic building materials carbon emissions are determined to be more accurate; if the difference between the two is greater than the second threshold, the corrected domestic building materials carbon emissions are determined to be inaccurate.
[0065] The second threshold can be set to different values or percentages according to different building material types. The closer the revised domestic building material carbon emissions are to the building material carbon emissions in domestic references, the more accurate the revised results are. If the revised domestic building material carbon emissions are very different from the building material carbon emissions in domestic references, the revised results are inaccurate.
[0066] Optionally, there are multiple domestic references. By comparing the revised domestic building materials carbon emissions with the building materials carbon emissions in multiple domestic references, it can be further confirmed that the revised domestic building materials carbon emissions are more accurate.
[0067] In summary, the present invention provides a method and model for correcting domestic building materials carbon emissions, which uses LCA software to process and calculate the inventory analysis data in existing domestic literature. This method uses domestic literature as the data basis, and the energy and carbon input-output conditions of each link of building materials raw material mining, production, transportation, use and treatment that conforms to the domestic process level. Combined with the LCA carbon emission tracing calculation model, it can fully consider the carbon emission flows in different links of the entire life cycle, thereby making the corrected domestic building materials carbon emissions more accurate.
[0068] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art based on the above disclosure shall fall within the protection scope of the present invention.
Claims
1. A method for correcting carbon emissions from domestic building materials, characterized in that: The following steps are involved: Obtain domestic literature covering carbon emissions from building materials; Determine whether the accounting boundaries used in the domestic literature to calculate the carbon emissions of the building materials are clear; If the accounting boundary is unclear, then obtain the inventory analysis data used to calculate the carbon emissions of the building materials in the domestic literature; inputting the inventory analysis data into life cycle assessment software; Selecting a preset building material model and evaluation method in the life cycle assessment software; The life cycle assessment software is run to obtain the revised carbon emissions of domestic building materials.
2. A method for correcting carbon emissions from domestic building materials as claimed in claim 1, characterized in that: Between the step of obtaining the inventory analysis data from the domestic literature for calculating the carbon emissions of the building materials and the step of inputting the inventory analysis data into the life cycle assessment software, the following steps are also included: Obtain the publication date of the domestic document; Determine whether the time period between the publication date and the current date is greater than a preset first threshold; If not, then the step of inputting the inventory analysis data into life cycle assessment software is performed.
3. A method for correcting carbon emissions from domestic building materials as claimed in claim 2, characterized in that: The first threshold is two years.
4. A method for correcting carbon emissions from domestic building materials as claimed in claim 1, characterized in that: After the step of obtaining the corrected domestic building materials carbon emissions, the following steps are also included: Obtain domestic references that contain building materials carbon emissions and have clear accounting boundaries for calculating building materials carbon emissions; The corrected domestic building materials carbon emissions are compared with the building materials carbon emissions in the domestic reference literature. If the difference between the two is less than a preset second threshold, the corrected domestic building materials carbon emissions are determined to be more accurate; if the difference between the two is greater than the second threshold, the corrected domestic building materials carbon emissions are determined to be inaccurate.
5. A method for correcting carbon emissions from domestic building materials as claimed in claim 4, characterized in that: The number of domestic references is multiple.
6. A model for correcting carbon emissions from domestic building materials, characterized in that: Includes the following modules: The acquisition module is used to obtain domestic literature containing carbon emissions of building materials; A judgment module, used to judge whether the accounting boundary used to calculate the carbon emissions of the building materials in the domestic literature is clear; If the accounting boundary is unclear, the acquisition module is further used to acquire inventory analysis data used to calculate the carbon emissions of the building materials in the domestic literature; An input module for inputting the inventory analysis data into the life cycle assessment software; A selection module for selecting a preset building material model and evaluation method in the life cycle assessment software; The operation module is used to run the life cycle assessment software to obtain the corrected domestic building materials carbon emissions.
7. A model for correcting carbon emissions from domestic building materials as claimed in claim 6, characterized in that: The acquisition module is also used to acquire the publication date of the domestic document; The judgment module is also used to judge whether the time period between the publication date and the current date is greater than a preset first threshold; if not, the input module executes the step of inputting the inventory analysis data into the life cycle assessment software.
8. A model for correcting carbon emissions from domestic building materials as claimed in claim 7, characterized in that: The first threshold is two years.
9. A model for correcting carbon emissions from domestic building materials as claimed in claim 6, characterized in that: The acquisition module is also used to perform the following steps: Obtain domestic references that contain building materials carbon emissions and have clear accounting boundaries for calculating building materials carbon emissions; The corrected domestic building materials carbon emissions are compared with the building materials carbon emissions in the domestic reference literature. If the difference between the two is less than a preset second threshold, the corrected domestic building materials carbon emissions are determined to be more accurate; if the difference between the two is greater than the second threshold, the corrected domestic building materials carbon emissions are determined to be inaccurate.
10. A model for correcting carbon emissions from domestic building materials as claimed in claim 9, characterized in that: The number of domestic references is multiple.