Method and device for measuring and calculating carbon footprint in materialization stage of prefabricated duct piece

Abstract

The invention provides a method and a device for measuring and calculating a carbon footprint in a materialization stage of a prefabricated segment. The prefabricated segment materialization stage carbon footprint measuring and calculating method comprises the following steps that a life cycle evaluation method is adopted, and the prefabricated segment materialization stage is divided into a production stage, a transportation stage and a construction stage; carbon emission sources involved in the production stage, the transportation stage and the construction stage are collected, and horizontal activity data and carbon emission factors are collected; establishing a carbon footprint measuring and calculating model in combination with a carbon emission coefficient method; calculating the carbon footprint of the prefabricated duct piece in the production stage, the transportation stage and the construction stage through the carbon footprint calculation model; according to the method, the life cycle evaluation method is adopted, the materialization stage of the prefabricated duct piece is divided into the production stage, the transportation stage and the construction stage, the whole process from raw material obtaining to construction site delivery is covered, and the carbon emission values of the prefabricated duct piece in different stages can be quantitatively evaluated with good accuracy.

Description

Technical Field

[0001] The present invention belongs to the field of building construction, and in particular relates to a method and device for measuring the carbon footprint of a prefabricated pipe segment in the physical and chemical stage. Background Art

[0002] With global attention to climate change, carbon emissions from the construction industry are receiving increasing attention. As one of the primary building materials used in infrastructure construction, the determination of the carbon footprint of precast segments has a significant impact on the final carbon footprint of subway projects.

[0003] However, there is currently a lack of accurate methods to measure the carbon footprint of prefabricated segments during the physical and chemical stages. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a method and device for measuring the carbon footprint of prefabricated pipe segments during the physical and chemical stage, so as to achieve an accurate assessment of the carbon emissions of prefabricated pipe segments and provide a reference for the carbon footprint measurement of infrastructure projects throughout their life cycle.

[0005] The technical solution of the present invention is: a method for measuring the carbon footprint of prefabricated segments during the physical and chemical stage, comprising the following steps:

[0006] S1, using the life cycle assessment method, divides the materialization stage of prefabricated segments into production stage, transportation stage and construction stage;

[0007] S2, collect carbon emission sources involved in the production, transportation and construction stages, and collect horizontal activity data and carbon emission factors;

[0008] S3, establish a carbon footprint calculation model by combining the carbon emission coefficient method;

[0009] S4, calculate the carbon footprint of the prefabricated segments during the production, transportation and construction stages using the carbon footprint calculation model in S3.

[0010] Furthermore, the carbon emission sources in the production stage include prefabricated pipe segment production machinery, prefabricated pipe segment raw materials, raw material transportation vehicles and production labor.

[0011] Furthermore, the carbon emission sources in the transportation stage include segment transportation vehicles and prefabricated segment lifting machinery.

[0012] Furthermore, the carbon emission sources during the construction phase include the building materials, construction machinery and construction labor consumed to complete the construction.

[0013] Furthermore, the carbon footprint calculation model includes a production stage carbon emission calculation model, a transportation stage carbon emission calculation model and a construction stage carbon emission calculation model.

[0014] Furthermore, the carbon emission calculation model in the production stage is:

[0015] E sc =A e ×C e +A m (C m +L m +C t )+A l ×C l ,

[0016] Among them, E sc is the total carbon emissions during the production phase (kgCO2);

[0017] A e is the energy consumption of the machine (kw·h);

[0018] C e is the carbon emission factor of e-energy;

[0019] A m is the consumption of material m (t);

[0020] C m is the carbon emission factor of material m;

[0021] L m is the transportation distance of material m in link i (km);

[0022] C t is the transport carbon emission factor;

[0023] A l is the labor consumption (man-day);

[0024] C l is the artificial carbon emission factor.

[0025] Furthermore, the carbon emission calculation model for the transportation stage is:

[0026] E YS =W se xL se xC t +A t xC e ,

[0027] Among them, E YS is the total carbon emissions during the transportation phase (kgCO2);

[0028] W se is the mass of one ring of segments (t);

[0029] L se is the segment transportation distance (km);

[0030] A t is the energy consumption of the lifting machine (kg).

[0031] Furthermore, the carbon emission calculation model during the construction phase is:

[0032] E SG =A e 'xC e +A m 'xC m +A′ l xC l ,

[0033] Among them, E SG is the total carbon emissions during the transportation phase (kgCO2);

[0034] A e ' is the energy consumption during the construction phase (kw·h);

[0035] A m 'Material consumption during the construction phase (t);

[0036] A l ' is the labor consumption during the construction phase (man-day).

[0037] Furthermore, in said S1, the prefabricated pipe segments from cutting steel bars to curing and positioning are defined as the production stage; the stacking and transportation of prefabricated pipe segments are defined as the transportation stage; and the on-site installation of prefabricated pipe segments is defined as the construction stage.

[0038] The carbon footprint measurement device for the physical and chemical stage of prefabricated segments includes:

[0039] Data collection module, used to collect carbon emission source data during the physical and chemical stage of prefabricated segments;

[0040] A carbon footprint calculation module is used to calculate the carbon footprint of prefabricated segments based on the collected carbon emission source data and the carbon emission coefficient method;

[0041] The result output module is used to output the measurement results and provide carbon reduction strategy recommendations.

[0042] Beneficial effects of the present invention:

[0043] (1) The present invention adopts a life cycle assessment method, dividing the materialization stage of prefabricated pipe segments into the production stage, the transportation stage, and the construction stage, covering the entire process from raw material acquisition to construction site delivery. It can quantitatively evaluate the carbon emissions of prefabricated pipe segments at different stages with good accuracy;

[0044] (2) Data from the materialization stage provide a benchmark for carbon emissions comparison during the subsequent construction, operation, and abandonment stages, and can serve as a reference for calculating the carbon footprint of infrastructure projects throughout their life cycle.

[0045] (3) A calculation model is established based on the carbon emission coefficient method, integrating field survey data and carbon emission factors of carbon emission sources. This can provide a standardized method for carbon footprint accounting throughout the life cycle of engineering projects such as subways, and assist in the design of low-carbon construction plans. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a flow chart of the method for calculating the carbon footprint of the prefabricated pipe segments during the physical and chemical stage of the present invention.

[0047] Figure 2 This is a principle block diagram of the carbon footprint calculation device for the physical and chemical stage of prefabricated pipe segments in the present invention. DETAILED DESCRIPTION

[0048] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present invention, its application, or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0049] The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are simply used to distinguish different parts. Terms such as "include" or "comprising" mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0050] like Figure 1 As shown, a method for calculating the carbon footprint of prefabricated segments during the physical and chemical stage is disclosed, comprising the following steps:

[0051] S1, using the life cycle assessment method, divides the materialization stage of prefabricated segments into production stage, transportation stage and construction stage;

[0052] S2, collect carbon emission sources involved in the production, transportation and construction stages, and collect horizontal activity data and carbon emission factors;

[0053] S3, establish a carbon footprint calculation model by combining the carbon emission coefficient method;

[0054] S4, calculate the carbon footprint of the prefabricated segments during the production, transportation and construction stages using the carbon footprint calculation model in S3.

[0055] In the above embodiment, the life cycle assessment (LCA) method is adopted to divide the materialization stage of prefabricated pipe segments into the production stage, the transportation stage and the construction stage, covering the entire process from raw material acquisition to construction site delivery. It can quantitatively evaluate the carbon emission values ​​of prefabricated pipe segments at different stages with good accuracy; the data of the materialization stage provides a benchmark value for the comparison of carbon emissions in the subsequent construction, operation and abandonment stages, which can provide a reference for the carbon footprint calculation of infrastructure projects throughout their life cycle; a calculation model is established based on the carbon emission coefficient method, integrating field survey data and carbon emission factors of carbon emission sources, which can provide a standardized method for the carbon footprint accounting of subway projects throughout their life cycle, and assist in the design of low-carbon construction plans.

[0056] In some embodiments, the carbon emission sources in the production stage include prefabricated pipe segment production machinery, prefabricated pipe segment raw materials, raw material transportation vehicles and production labor; as a specific implementation method of data collection in the production stage, the steel and concrete usage are extracted through BIM models or engineering drawings, and the energy consumption data refers to the production line energy consumption monitoring records.

[0057] In some embodiments, the carbon emission sources in the transportation stage include segment transportation vehicles and prefabricated segment lifting machinery; as a specific implementation method for data collection in the transportation stage, the transportation distance in the transportation stage data is determined by GIS path planning, and the fuel efficiency adopts the database parameters of the "National Machinery Unit Cost Quota".

[0058] In some embodiments, the carbon emission sources during the construction phase include the building materials, construction machinery and construction labor consumed to complete the construction; as a specific implementation method for data collection during the construction phase, during the construction phase, the machine shift records and statistics the equipment operating time, and the energy consumption carbon emissions are calculated in combination with the IPCC emission factors.

[0059] In some embodiments, the carbon footprint calculation model includes a production stage carbon emission calculation model, a transportation stage carbon emission calculation model, and a construction stage carbon emission calculation model, which are used to calculate the carbon footprint of the production stage, transportation stage, and construction stage, respectively.

[0060] In the above embodiment, the calculation model for carbon emissions in the production stage is:

[0061] E sc =A e ×C e +A m (C m +L m +C t )+A l ×C l ,

[0062] Among them, E sc is the total carbon emissions during the production phase (kgCO2);

[0063] A e is the energy consumption of the machine (kw·h);

[0064] C e is the carbon emission factor of e-energy;

[0065] A m is the consumption of material m (t);

[0066] C m is the carbon emission factor of material m;

[0067] L m is the transportation distance of material m in link i (km);

[0068] C t is the transport carbon emission factor;

[0069] A l is labor consumption (man-day);

[0070] C l is the artificial carbon emission factor.

[0071] In the above embodiment, the calculation model for carbon emissions during the transportation phase is:

[0072] E YS =W se xL se xC t +A t xC e ,

[0073] Among them, E YS is the total carbon emissions during the transportation phase (kgCO2);

[0074] W se is the mass of one ring of segments (t);

[0075] L se is the segment transportation distance (km);

[0076] A t is the energy consumption of the lifting machine (kg).

[0077] In the above embodiment, the calculation model for carbon emissions during the construction phase is:

[0078] E SG =A e 'xC e +A m ′xCm +A l ′xC l ,

[0079] Among them, E SG is the total carbon emissions during the transportation phase (kgCO2);

[0080] A e ' is the energy consumption during the construction phase (kw·h);

[0081] A m 'Material consumption during the construction phase (t);

[0082] A l ' is the labor consumption during the construction phase (man-day).

[0083] In some embodiments, in S1, the prefabricated pipe segments from cutting steel bars to curing and positioning are defined as the production stage; the stacking and transportation of prefabricated pipe segments are defined as the transportation stage; and the on-site installation of prefabricated pipe segments is defined as the construction stage.

[0084] In some embodiments, as Figure 2 As shown, a device for calculating the carbon footprint of a prefabricated segment during the physical and chemical stage is disclosed, which is characterized by comprising:

[0085] Data collection module 1, used to collect carbon emission source data during the physical and chemical stage of prefabricated segments;

[0086] Carbon footprint calculation module 2, used to calculate the carbon footprint of the prefabricated segments based on the collected carbon emission source data and the carbon emission coefficient method;

[0087] The result output module 3 is used to output the measurement results and provide carbon reduction strategy recommendations.

[0088] In the above embodiment, the carbon footprint calculation module is pre-set with a production stage carbon emission calculation model, a transportation stage carbon emission calculation model and a construction stage carbon emission calculation model, which are used to calculate the carbon footprint of the prefabricated pipe segments in the production stage, transportation stage and construction stage respectively.

[0089] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0090] The above-described embodiments represent only some embodiments of the present invention. Although the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be based on the appended claims.

Claims

1. A method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages, characterized in that: The following steps are involved: S1, using the life cycle assessment method, divides the materialization stage of prefabricated segments into production stage, transportation stage and construction stage; S2, collect carbon emission sources involved in the production, transportation and construction stages, and collect horizontal activity data and carbon emission factors; S3, establish a carbon footprint calculation model by combining the carbon emission coefficient method; S4, calculate the carbon footprint of the prefabricated segments during the production, transportation and construction stages using the carbon footprint calculation model in S3.

2. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 1, characterized in that: The carbon emission sources in the production stage include prefabricated pipe segment production machinery, prefabricated pipe segment raw materials, raw material transportation vehicles and production labor.

3. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 1, characterized in that: The sources of carbon emissions during the transportation stage include segment transportation vehicles and prefabricated segment lifting machinery.

4. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 1, characterized in that: The sources of carbon emissions during the construction phase include the building materials, construction machinery and construction labor consumed to complete the construction.

5. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 1 is characterized by: The carbon footprint calculation model includes a production phase carbon emission calculation model, a transportation phase carbon emission calculation model and a construction phase carbon emission calculation model.

6. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 5, characterized in that: The calculation model for carbon emissions in the production stage is: E sc =A e ×C e +A m (C m +L m +C t )+A l ×C l , Among them, E sc is the total carbon emissions during the production phase (kgCO2); A e is the energy consumption of the machine (kw·h); C e is the carbon emission factor of e-energy; A m is the consumption of material m (t); C m is the carbon emission factor of material m; L m is the transportation distance of material m in link i (km); C t is the transport carbon emission factor; A l is labor consumption (man-day); C l is the artificial carbon emission factor.

7. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 5, characterized in that: The calculation model for carbon emissions in the transportation stage is: E YS =W se xL se xC t +A t xC e , Among them, E YS is the total carbon emissions during the transportation phase (kgCO2); W se is the mass of one ring of segments (t); L se is the segment transportation distance (km); A t is the energy consumption of the lifting machine (kg).

8. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 5, characterized in that: The calculation model for carbon emissions during the construction phase is: E SG =A e xC e +A m xC m +A l xC l , Among them, E SG is the total carbon emissions during the transportation phase (kgCO2); A e ' is the energy consumption during the construction phase (kw·h); A m 'Material consumption during the construction phase (t); A l ' is the labor consumption during the construction phase (man-day).

9. The method for calculating the carbon footprint of prefabricated segments during the physical and chemical stages according to claim 1, characterized in that: In S1, the prefabricated pipe segments from cutting steel bars to curing and positioning are defined as the production stage; the stacking and transportation of prefabricated pipe segments are defined as the transportation stage; and the on-site installation of prefabricated pipe segments is defined as the construction stage.

10. A device for measuring carbon footprint of prefabricated segments during the physical and chemical stages, characterized in that: include: Data collection module, used to collect carbon emission source data during the physical and chemical stage of prefabricated segments; A carbon footprint calculation module is used to calculate the carbon footprint of prefabricated segments based on the collected carbon emission source data and the carbon emission coefficient method; The result output module is used to output the measurement results and provide carbon reduction strategy recommendations.

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