CN117196890A - Building carbon emission reduction assessment method, electronic equipment and storage medium - Google Patents
Building carbon emission reduction assessment method, electronic equipment and storage medium Download PDFInfo
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Abstract
A building carbon emission reduction assessment method, electronic equipment and storage medium belong to the technical field of building energy conservation and emission reduction. In order to improve systematicness and objectivity of materialized carbon emission reduction evaluation, the application constructs a case sample set of a building project; setting a boundary range and an emission source of materialized carbon emission reduction evaluation according to project characteristics of a building to be evaluated; extracting a baseline building sample from a building project case sample set; calculating the materialized carbon emission of the building project based on the activity level data of the building project to be evaluated; constructing a materialized carbon emission model of a reference line building sample, and calculating materialized carbon emission of the building sample based on activity level data of the building sample; calculating the reference line materialized carbon emission; and evaluating the carbon emission reduction of the building. The application realizes the assessment of the carbon emission of the building and provides the carbon emission reduction index for the scheme comparison selection, the low-carbon design and the construction assessment of the building structure as a reference basis.
Description
Technical Field
The application belongs to the technical field of energy conservation and emission reduction of buildings, and particularly relates to a building carbon emission reduction assessment method, electronic equipment and a storage medium.
Background
The building materialization stage is an important link of the whole life cycle of the building, and is also one of important sources of carbon emission in the field of the building. Based on green and low-carbon development targets in the building industry, assessment of the carbon emission of the building is a key factor for realizing assessment, analysis and verification of low-carbon building design and construction schemes. At present, the carbon emission reduction of the building is mainly evaluated by the following method:
the method comprises the following steps: qualitative evaluation is carried out by adopting a non-quantitative method, the evaluation is carried out according to an evaluation index system provided by green building evaluation standards, LEED and the like, the evaluation is carried out according to the performances of building projects in the aspects of energy conservation, material conservation, water conservation and land conservation, and the total score is formed according to different weight indexes and is used as the basis of green building evaluation grades. In the method, quantitative calculation of the emission reduction of the materialized carbon is not realized, but the green and low carbon level of the building is qualitatively evaluated by evaluating design conditions, technical application conditions and the like which influence the emission reduction of the materialized carbon.
The second method is as follows: the low carbon property of the technical scheme is evaluated by comparing the materialized carbon discharge amounts of different technical schemes, such as carbon emission reduction amount applied to researching a certain building technology, and the materialized carbon emission level of the technology is compared with that of the traditional technology under the same or similar conditions, so that the materialized carbon emission reduction amount is obtained. When the method is adopted, the systematic definition of the calculation boundary and the reference scene is not adopted, and a 'one-event' evaluation mode is adopted, so that the efficiency is low, the accuracy of the evaluation result is greatly influenced by factors selected by people, and the objectivity is lacking.
Disclosure of Invention
The application aims to solve the problem of improving systematicness and objectivity of materialized carbon emission reduction evaluation, and provides a building materialized carbon emission reduction evaluation method, electronic equipment and a storage medium.
In order to achieve the above purpose, the present application is realized by the following technical scheme:
a building carbon emission reduction assessment method comprises the following steps:
s1, collecting a building project file, and constructing a building project case sample set;
s2, setting a boundary range and an emission source of materialized carbon emission reduction evaluation according to project characteristics of a building to be evaluated;
s3, extracting a datum line building sample from the building project case sample set constructed in the step S1 based on the geographical boundary, the building volume, the functional classification and the building performance characteristics of the building project to be evaluated;
s4, constructing a physical-chemical carbon emission model of the building project based on the boundary range and emission source of physical-chemical carbon emission reduction assessment set in the step S2, and calculating physical-chemical carbon emission of the building project based on activity level data of the building project to be assessed;
s5, constructing a materialized carbon emission model of a baseline building sample based on the boundary range and the emission source of materialized carbon emission reduction evaluation set in the step S2, and calculating materialized carbon emission of the building sample based on activity level data of the building sample;
s6, calculating a datum line materialized carbon emission based on the materialized carbon emission of the building sample obtained in the step S5;
and S7, evaluating the emission reduction amount of the building materialized carbon based on the baseline materialized carbon emission amount obtained in the step S6 and the building project materialized carbon emission amount obtained in the step S4.
Further, the specific implementation method of the step S2 includes the following steps:
s2.1, setting a boundary range of materialized emission reduction assessment of a building project;
s2.1.1 setting a time boundary of the physical and chemical emission reduction evaluation of the building project comprises project planning and design to completion acceptance;
s2.1.2 setting space boundaries of physical and chemical emission reduction evaluation of building projects, wherein the space boundaries comprise production factories and material production equipment for providing building materials and construction auxiliary materials for the projects, transporting the building materials from the production factories to transportation paths and transportation carriers on the projects, transporting the building wastes generated by the projects to transportation paths and transportation carriers of building waste treatment stations for providing recycling treatment for the building wastes generated by the projects, and recycling treatment equipment and facilities for the building wastes;
s2.2, setting emission sources including building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery based on the characteristics of energy conservation, material conservation, water conservation and land conservation of the building in the materialization stage.
Further, the specific implementation method of the step S3 includes the following steps:
s3.1, extracting a reference line building sample which is a building project with the same functional characteristics as the building project to be evaluated within 10 years;
s3.2, geographic boundary: compared with a building project to be evaluated, the baseline building sample is firstly selected to be the same city-level geographic area, and is expanded to a provincial-level geographic area when the sample number requirement cannot be met;
s3.3, building body weight: the difference of building heights of the datum line building sample and the building project to be evaluated is not more than +/-20%, and the difference of building areas of the datum line building sample and the building project to be evaluated is not more than +/-50%;
s3.4, building performance: compared with the building project to be evaluated, the datum line building sample has the safety, durability and comfort meeting the requirements of the same design and construction standard;
s3.5, extracting reference line building samples by adopting a random sampling mode, and setting the number of the extracted reference line building samples to be 10-20.
Further, the specific implementation method of the step S4 includes the following steps:
s4.1, constructing a materialized carbon emission model of a building project based on building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery, wherein the calculation expression is as follows:
PE＝PE MP φ＝PE MP (1+φ MT +φ CE +φ CA +φ CW +φ CR +φ WT )
wherein PE MP Is the materialized carbon emission caused by building material consumption in project activities, phi is the comprehensive conversion factor of project materialized carbon emission MT Conversion factor phi for carbon emission of off-site transport CE Conversion factor phi of materialized carbon emission of construction energy consumption CA To convert the carbon emission amount of construction auxiliary materials into a conversion factor phi CW Is a conversion factor phi of physicochemical carbon emission of construction water CR Conversion factor phi for materialized carbon emission of temporary road WT Conversion factors of materialized carbon emission for garbage recovery;
s4.2, calculating expression of materialized carbon emission caused by building material consumption in the project setting activity is as follows:
wherein Q is M,i The i-th building material consumption in project activities; PF (physical filter) M,i Carbon emission factor for the ith building material in project campaign;
s4.3, setting a calculation expression of a materialized carbon emission conversion factor of off-site transportation based on transportation carrier energy consumption record, wherein the calculation expression is as follows:
wherein PE MT Is materialized carbon emission caused by off-site transportation in project activities, Q TE,j Consumption of jth energy for off-site transport in project campaign, PF E,j Carbon emission factor for the j-th energy source;
when the energy consumption record of the transport carrier is lacking, the calculation expression of the materialized carbon emission conversion factor of the off-site transport is set based on the transport distance and the weight of the building material, and the calculation expression is as follows:
wherein D is i Off-site distance for ith building material in project activity, PF T,i Carbon emission factor for the transportation mode used for the ith building material in project activity;
s4.4, setting a calculation expression of a materialized carbon emission conversion factor of construction energy consumption:
wherein PE CE Is materialized carbon emission caused by construction energy consumption in project activities, Q CE,j The energy consumption of the j-th energy source for the construction activity in the project activity comprises the energy consumption of construction machinery, equipment and machines, the temporary living and office energy consumption of the field, the temporary lighting energy consumption and the vertical transportation energy consumption;
s4.5, setting a calculation expression of a materialized carbon emission conversion factor of the construction auxiliary material, wherein the calculation expression is as follows:
wherein PE CA PE for materialized carbon emission caused by construction auxiliary materials in project activities CAM Carbon emission caused by consumption of construction auxiliary materials in project activities, PE CAT Carbon emission caused by transportation of construction auxiliary materials in and out of the field in project activities;
the calculation expression of carbon emission caused by the consumption of the construction auxiliary materials is as follows:
wherein Q is l The method comprises the steps of uniformly spreading consumption of first construction auxiliary materials, wherein the turnover rate and the loss rate are considered in project activities, and the consumption comprises templates, brackets and scaffolds; PF (physical filter) l Carbon emission factors of the first construction auxiliary material in project activities;
s4.6, setting a calculation expression of a materialized carbon emission conversion factor of the construction water:
wherein PE CW Is a materialized carbon row caused by construction water in project activitiesPut, Q WL For the new water quantity for life of the construction site in project activities, Q WE New water quantity for engineering of construction site in project activity, PF W Carbon emission factor for fresh water;
s4.7, setting a calculation expression of a materialized carbon emission conversion factor of the temporary road:
wherein PE CR PE for materialized carbon emissions from temporary roads in project activity CRM Carbon emissions due to consumption of materials for construction road pavement in project activities, PE CRT Carbon emission caused by off-site transportation of building materials used for paving construction roads in project activities;
s4.8, calculating expression of materialized carbon emission conversion factors of garbage recovery is as follows:
wherein PE WT PE for materialized carbon emissions from garbage collection in project activities WTT PE for carbon emissions caused by construction waste transportation in project activities WTP PE for carbon emissions from construction waste disposal in project activities WTR The indirect carbon recycled by construction waste in project activities is reduced in emission;
the calculated expression of carbon emissions caused by construction waste disposal in project activities is:
wherein Q is WTP,j The consumption of j energy sources for construction garbage treatment in project activities;
the calculation expression of indirect carbon emission reduction recycled by construction waste in project activities is as follows:
wherein Q is RM,i The total amount of the ith regenerated building material generated by garbage recycling treatment in project activities; PF (physical filter) RM,i Carbon emission factors corresponding to the replaced original building materials for the ith regenerated building material;
s4.9, calculating the materialized carbon emission of the building project based on the materialized carbon emission model of the building project and the activity level data of the building project to be evaluated.
Further, the calculation expression of the materialized carbon emission model of the baseline building sample constructed in the step S5 is as follows:
BE k ＝BE MP,k φ k ＝BE MP,k (1+φ MT,k +φ CE,k +φ CA,k +φ CW,k +φ CR,k +φ WT,k )
wherein BE k Materialized carbon emissions, phi, for the kth baseline building sample k BE, a comprehensive conversion factor of materialized carbon emission of kth building sample MP,k Materialized carbon emissions, phi, from building material consumption for the kth building sample MT,k Conversion factor phi for chemical carbon emission of kth building sample off-site transport CE,k Construction of a conversion factor of the energy consumption materialized carbon emission for the kth building sample, phi CA,k Conversion factor phi of materialized carbon emission of auxiliary materials for kth building sample construction CW,k Conversion factor phi of physicochemical carbon emission of water for construction of kth building sample CR,k Conversion factor phi for materialized carbon emission of k-th building sample temporary road WT,k Recovering conversion factor phi of materialized carbon emission for kth building sample garbage MT,k 、φ CE,k 、φ CA,k 、φ CW,k 、φ CR,k And phi WT,k Calculating according to the calculation expression provided in the step S4;
and calculating the materialized carbon emission of the baseline building sample based on the carbon emission model of the baseline building sample and the activity level data of the baseline building sample.
Further, the specific implementation method of the step S6 includes the following steps:
s6.1, calculating the carbon emission intensity based on the materialized carbon emission amount and the building area of the kth datum line building sample, wherein the calculation expression is as follows:
wherein BI k Carbon emission intensity for kth baseline building sample, A k For the building area of the kth baseline building sample, BI MP,k A materialized carbon strength index for building material consumption of the kth baseline building sample;
s6.2, carbon emission intensity BI constructed based on step S6.1 k Ranking the baseline building samples from low to high, identifying that the first 20% of baseline building samples are included in the baseline scene, and determining the first 20% of samples according to an upward rounding mode when 20% of the total sample is decimal;
s6.3, calculating a weighted average value BI of baseline materialized carbon intensity based on the first 20% of baseline building samples 20 The computational expression is:
wherein BI p′ Materialized carbon Strength of the first 20% baseline building sample at p' th, A p′ Building area for the p' th top 20% baseline building sample; BE MP,p′ Materialized carbon emissions resulting from building material consumption for the p' th top 20% baseline building sample; phi (phi) p′ A comprehensive conversion factor for materialized carbon emissions for the p' th top 20% baseline building sample;
s6.4, calculating a weighted average of baseline materialized carbon intensity based on the first 20% baseline building sample obtained in the step S6.3, and constructing a baseline materialized carbon emission model, wherein the calculation expression is as follows:
wherein A is the building area of the item to be evaluated, gamma A Is the scale factor of the building area of the project to be evaluated and the average of the building areas of the 20% baseline buildings.
Further, the specific implementation method of the step S7 is to evaluate the emission reduction of the building materialized carbon based on the datum materialized carbon emission and the project materialized carbon emission, and the calculation expression is as follows:
wherein ER is the carbon emission reduction of the building.
The electronic equipment comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the building carbon emission reduction evaluation method when executing the computer program.
A computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method of building materialized carbon emission reduction assessment.
The application has the beneficial effects that:
compared with the existing method, the method for evaluating the emission reduction of the carbon of the building establishes a case library based on the existing building project; determining a boundary range and a main emission source of project materialized carbon emission based on project characteristics; drawing a baseline building sample from the case library based on project geographic boundaries, functional classifications, building volumes, and building performance characteristics; calculating physical and chemical carbon emission based on project activity level and baseline building sample activity level, including carbon emission caused by building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recycling and separating processes; then calculating a baseline carbon emission based on the building sample carbon emission; and finally, evaluating the emission reduction of the building materialized carbon based on the difference value of the project materialized carbon emission and the baseline materialized carbon emission. According to the building carbon emission reduction evaluation method, the project case base is established, the carbon emission of each building sample can be calculated at one time and reused in the evaluation of the carbon emission reduction of different buildings, the evaluated buildings can be listed in the project case base after the evaluation is completed, the capacity and the richness of the project case base are increased, the calculation workload is reduced, and the utilization rate and the accuracy of the project case base are improved.
The technical innovation of the application comprises:
1. the application provides a method for determining a baseline building sample based on the geographic boundary, the functional classification, the building volume and the building performance characteristics of a building project to be evaluated for the first time.
2. The application firstly surrounds an emission reduction path of a building in a materialization stage, and provides a method for calculating materialization carbon emission reduction according to seven sub-processes of building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery.
3. According to the application, the materialized carbon emission conversion factor is adopted, and a method for realizing materialized carbon emission reduction calculation according to the carbon emission reduction amount and conversion factor of building material consumption is provided, wherein the materialized carbon emission conversion factor can be used as an empirical coefficient to be counted according to different project types and characteristics, so that the calculation process of materialized carbon emission reduction is simplified, and the calculation efficiency is improved.
4. The building project case library can be reused in the carbon emission reduction evaluation of different buildings, and the evaluated buildings can be listed in the project case library after the evaluation is completed, so that the utilization rate and accuracy of the project case library are improved.
The assessment method for the carbon emission reduction of the building is used for assessing project activities and baseline scene carbon emission, and on the basis, the assessment of the carbon emission of the building is realized, and carbon emission reduction indexes are provided for comparison and selection of building structure schemes, low-carbon design and construction assessment as reference basis.
Drawings
FIG. 1 is a flow chart of a method for evaluating the carbon emission reduction of a building according to the application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and detailed description. It should be understood that the embodiments described herein are for purposes of illustration only and are not intended to limit the application, i.e., the embodiments described are merely some, but not all, of the embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations, and the present application can have other embodiments as well.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.
For further understanding of the application, the following detailed description is presented in conjunction with the accompanying drawings 1 to provide a further understanding of the application in its aspects, features and efficacy:
detailed description of the preferred embodiments
A building carbon emission reduction assessment method comprises the following steps:
s1, collecting a building project file, and constructing a building project case sample set;
s2, setting a boundary range and an emission source of materialized carbon emission reduction evaluation according to project characteristics of a building to be evaluated;
further, the specific implementation method of the step S2 includes the following steps:
s2.1, setting a boundary range of materialized emission reduction assessment of a building project;
s2.1.1 setting a time boundary of the physical and chemical emission reduction evaluation of the building project comprises project planning and design to completion acceptance;
s2.1.2 setting space boundaries of physical and chemical emission reduction evaluation of building projects, wherein the space boundaries comprise production factories and material production equipment for providing building materials and construction auxiliary materials for the projects, transporting the building materials from the production factories to transportation paths and transportation carriers on the projects, transporting the building wastes generated by the projects to transportation paths and transportation carriers of building waste treatment stations for providing recycling treatment for the building wastes generated by the projects, and recycling treatment equipment and facilities for the building wastes;
s2.2, setting emission sources including building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery based on the characteristics of energy conservation, material conservation, water conservation and land conservation in the building materialization stage;
s3, extracting a datum line building sample from the building project case sample set constructed in the step S1 based on the geographical boundary, the building volume, the functional classification and the building performance characteristics of the building project to be evaluated;
further, the specific implementation method of the step S3 includes the following steps:
s3.1, extracting a reference line building sample which is a building project with the same functional characteristics as the building project to be evaluated within 10 years;
s3.2, geographic boundary: compared with a building project to be evaluated, the baseline building sample is firstly selected to be the same city-level geographic area, and is expanded to a provincial-level geographic area when the sample number requirement cannot be met;
s3.3, building body weight: the difference of building heights of the datum line building sample and the building project to be evaluated is not more than +/-20%, and the difference of building areas of the datum line building sample and the building project to be evaluated is not more than +/-50%;
s3.4, building performance: compared with the building project to be evaluated, the datum line building sample has the safety, durability and comfort meeting the requirements of the same design and construction standard;
s3.5, extracting reference line building samples by adopting a random sampling mode, and setting the number of the extracted reference line building samples to be 10-20;
s4, constructing a physical-chemical carbon emission model of the building project based on the boundary range and emission source of physical-chemical carbon emission reduction assessment set in the step S2, and calculating physical-chemical carbon emission of the building project based on activity level data of the building project to be assessed;
further, the specific implementation method of the step S4 includes the following steps:
s4.1, constructing a materialized carbon emission model of a building project based on building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery, wherein the calculation expression is as follows:
PE＝PE MP φ＝PE MP (1+φ MT +φ CE +φ CA +φ CW +φ CR +φ WT )
wherein PE MP Is the materialized carbon emission caused by building material consumption in project activities, phi is the comprehensive conversion factor of project materialized carbon emission MT Conversion factor phi for carbon emission of off-site transport CE Conversion factor phi of materialized carbon emission of construction energy consumption CA To convert the carbon emission amount of construction auxiliary materials into a conversion factor phi CW Is a conversion factor phi of physicochemical carbon emission of construction water CR Conversion factor phi for materialized carbon emission of temporary road WT Conversion factors of materialized carbon emission for garbage recovery;
s4.2, calculating expression of materialized carbon emission caused by building material consumption in the project setting activity is as follows:
wherein Q is M,i The i-th building material consumption in project activities; PF (physical filter) M,i Carbon emission factor for the ith building material in project campaign;
s4.3, a calculation expression of a preferred method for setting the materialized carbon emission conversion factor of off-site transportation based on the transportation carrier energy consumption record is as follows:
wherein PE MT Is materialized carbon emission caused by off-site transportation in project activities, Q TE,j Consumption of jth energy for off-site transport in project campaign, PF E,j Carbon emission factor for the j-th energy source;
when the energy consumption record of the transport carrier is lacking, the calculation expression of the secondary selection method for setting the materialized carbon emission conversion factor of the off-site transport based on the transport distance and the building material weight is as follows:
wherein D is i Off-site distance for ith building material in project activity, PF T,i Carbon emission factor for the transportation mode used for the ith building material in project activity;
s4.4, setting a calculation expression of a materialized carbon emission conversion factor of construction energy consumption:
wherein PE CE Is materialized carbon emission caused by construction energy consumption in project activities, Q CE,j The energy consumption of the j-th energy source for the construction activity in the project activity comprises the energy consumption of construction machinery, equipment and machines, the temporary living and office energy consumption of the field, the temporary lighting energy consumption and the vertical transportation energy consumption;
s4.5, setting a calculation expression of a materialized carbon emission conversion factor of the construction auxiliary material, wherein the calculation expression is as follows:
wherein PE CA PE for materialized carbon emission caused by construction auxiliary materials in project activities CAM Carbon emission caused by consumption of construction auxiliary materials in project activities, PE CAT Carbon emission caused by transportation of construction auxiliary materials in and out of the field in project activities;
the calculation expression of carbon emission caused by the consumption of the construction auxiliary materials is as follows:
wherein,the method comprises the steps of uniformly spreading consumption of first construction auxiliary materials, wherein the turnover rate and the loss rate are considered in project activities, and the consumption comprises templates, brackets and scaffolds; PF (physical filter) l Carbon emission factors of the first construction auxiliary material in project activities;
specifically, carbon emission caused by in-out transportation of construction auxiliary materials is calculated based on a preferred method or a sub-selection method of physical and chemical carbon emission of off-site transportation, wherein the transportation distance of the construction auxiliary materials adopts the sum of an in-field transportation distance and an out-field transportation distance;
s4.6, setting a calculation expression of a materialized carbon emission conversion factor of the construction water:
wherein PE CW Is materialized carbon emission caused by construction water in project activities, Q WL For the new water quantity for life of the construction site in project activities, Q WE New water quantity for engineering of construction site in project activity, PF W Carbon emission factor for fresh water;
s4.7, setting a calculation expression of a materialized carbon emission conversion factor of the temporary road:
wherein PE CR PE for materialized carbon emissions from temporary roads in project activity CRM Carbon emissions due to consumption of materials for construction road pavement in project activities, PE CRT Paving construction roads in project activitiesCarbon emission caused by off-site transportation of the building materials used;
further, PE CRM Calculation expression calculation of materialized carbon emission based on building material consumption and PE CRT Calculation is performed based on a preferred method or a secondary selection method of off-site transportation physicochemical carbon emission;
s4.8, calculating expression of materialized carbon emission conversion factors of garbage recovery is as follows:
wherein PE WT PE for materialized carbon emissions from garbage collection in project activities WTT PE for carbon emissions caused by construction waste transportation in project activities WTP PE for carbon emissions from construction waste disposal in project activities WTR The indirect carbon recycled by construction waste in project activities is reduced in emission;
specifically, carbon emission PE caused by construction waste transportation in project activities WTT Calculation is performed based on a preferred method or a secondary selection method of the off-site transportation physicochemical carbon emission;
the calculated expression of carbon emissions caused by construction waste disposal in project activities is:
wherein Q is WTP,j The consumption of j energy sources for construction garbage treatment in project activities;
the calculation expression of indirect carbon emission reduction recycled by construction waste in project activities is as follows:
wherein Q is RM,i The total amount of the ith regenerated building material generated by garbage recycling treatment in project activities; PF (physical filter) RM,i Is corresponding to the i-th regenerated building material and is replaced by the original building materialCarbon emission factor of the material;
s4.9, calculating the materialized carbon emission of the building project based on the materialized carbon emission model of the building project and the activity level data of the building project to be evaluated;
s5, constructing a materialized carbon emission model of a baseline building sample based on the boundary range and the emission source of materialized carbon emission reduction evaluation set in the step S2, and calculating materialized carbon emission of the building sample based on activity level data of the building sample;
further, the calculation expression of the materialized carbon emission model of the baseline building sample constructed in the step S5 is as follows:
BE k ＝BE MP,k φ k ＝BE MP,k (1+φ MT,k +φ CE,k +φ CA,k +φ CW,k +φ CR,k +φ WT,k )
wherein BE k Materialized carbon emissions, phi, for the kth baseline building sample k BE, a comprehensive conversion factor of materialized carbon emission of kth building sample MP,k Materialized carbon emissions, phi, from building material consumption for the kth building sample MT,k Conversion factor phi for chemical carbon emission of kth building sample off-site transport CE,k Construction of a conversion factor of the energy consumption materialized carbon emission for the kth building sample, phi CA,k Conversion factor phi of materialized carbon emission of auxiliary materials for kth building sample construction CW,k Conversion factor phi of physicochemical carbon emission of water for construction of kth building sample CR,k Conversion factor phi for materialized carbon emission of k-th building sample temporary road WT,k Recovering conversion factor phi of materialized carbon emission for kth building sample garbage MT,k 、φ CE,k 、φ CA,k 、φ CW,k 、φ CR,k And phi WT,k Calculating according to the calculation expression provided in the step S4;
calculating the materialized carbon emission of the baseline building sample based on the carbon emission model of the baseline building sample and the activity level data of the baseline building sample;
s6, calculating a baseline materialized carbon emission model based on the materialized carbon emission model of the baseline building sample constructed in the step S5;
further, the specific implementation method of the step S6 includes the following steps:
s6.1, calculating the carbon emission intensity based on the materialized carbon emission and the building area of the kth datum line building sample, wherein the calculation expression is as follows:
wherein BI k Carbon emission intensity for kth baseline building sample, A k For the building area of the kth baseline building sample, BI MP,k A materialized carbon strength index for building material consumption of the kth baseline building sample;
s6.2, carbon emission intensity BI constructed based on step S6.1 k Ranking the baseline building samples from low to high, identifying that the first 20% of baseline building samples are included in the baseline scene, and determining the first 20% of samples according to an upward rounding mode when 20% of the total sample is decimal;
s6.3, calculating a weighted average value BI of baseline materialized carbon intensity based on the first 20% of baseline building samples 20 The computational expression is:
wherein BI p′ Materialized carbon Strength of the first 20% baseline building sample at p' th, A p′ Building area for the p' th top 20% baseline building sample; BE MP,p′ Materialized carbon emissions resulting from building material consumption for the p' th top 20% baseline building sample; phi (phi) p′ A comprehensive conversion factor for materialized carbon emissions for the p' th top 20% baseline building sample;
s6.4, calculating a weighted average of baseline materialized carbon intensity based on the first 20% baseline building sample obtained in the step S6.3, and constructing a baseline materialized carbon emission model, wherein the calculation expression is as follows:
wherein A is the building area of the item to be evaluated, gamma A A scale factor of the building area of the project to be evaluated and the building area average value of the 20% datum line building;
s7, evaluating the emission reduction of the building materialized carbon based on the baseline materialized carbon emission model obtained in the step S6 and the building project materialized carbon emission model obtained in the step S4;
further, the specific implementation method of the step S7 is to evaluate the emission reduction of the building materialized carbon based on the datum materialized carbon emission and the project materialized carbon emission, and the calculation expression is as follows:
wherein ER is the carbon emission reduction of the building.
The embodiment provides a building materialized carbon emission reduction evaluation method, which improves systematicness and objectivity of materialized carbon emission reduction evaluation by establishing a baseline scene recognition and materialized carbon emission reduction evaluation method system.
Detailed description of the preferred embodiments
The electronic equipment comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the building carbon emission reduction evaluation method when executing the computer program.
The computer device of the present application may be a device including a processor and a memory, such as a single chip microcomputer including a central processing unit. And the processor is used for realizing the steps of the building carbon emission reduction assessment method when executing the computer program stored in the memory.
The processor may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
Detailed description of the preferred embodiments
A computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method of building materialized carbon emission reduction assessment.
The computer readable storage medium of the present application may be any form of storage medium that is readable by a processor of a computer device, including but not limited to, nonvolatile memory, volatile memory, ferroelectric memory, etc., on which a computer program is stored, and when the processor of the computer device reads and executes the computer program stored in the memory, the steps of a building carbon emission reduction estimation method described above may be implemented.
The computer program comprises computer program code which may be in source code form, object code form, executable file or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the computer readable medium contains content that can be appropriately scaled according to the requirements of jurisdictions in which such content is subject to legislation and patent practice, such as in certain jurisdictions in which such content is subject to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.
It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although the application has been described above with reference to specific embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification solely for the sake of brevity and resource saving. Therefore, it is intended that the application not be limited to the particular embodiments disclosed herein, but that the application will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. The method for evaluating the carbon emission reduction of the building is characterized by comprising the following steps of:
s1, collecting a building project file, and constructing a building project case sample set;
s2, setting a boundary range and an emission source of materialized carbon emission reduction evaluation according to project characteristics of a building to be evaluated;
s3, extracting a datum line building sample from the building project case sample set constructed in the step S1 based on the geographical boundary, the building volume, the functional classification and the building performance characteristics of the building project to be evaluated;
s4, constructing a physical-chemical carbon emission model of the building project based on the boundary range and emission source of physical-chemical carbon emission reduction assessment set in the step S2, and calculating physical-chemical carbon emission of the building project based on activity level data of the building project to be assessed;
s5, constructing a materialized carbon emission model of a baseline building sample based on the boundary range and the emission source of materialized carbon emission reduction evaluation set in the step S2, and calculating materialized carbon emission of the building sample based on activity level data of the building sample;
s6, calculating a datum line materialized carbon emission based on the materialized carbon emission of the building sample obtained in the step S5;
and S7, evaluating the emission reduction amount of the building materialized carbon based on the baseline materialized carbon emission amount obtained in the step S6 and the building project materialized carbon emission amount obtained in the step S4.
2. The method for evaluating the carbon emission reduction of a building according to claim 1, wherein the specific implementation method of the step S2 comprises the following steps:
s2.1, setting a boundary range of materialized emission reduction assessment of a building project;
s2.1.1 setting a time boundary of the physical and chemical emission reduction evaluation of the building project comprises project planning and design to completion acceptance;
s2.1.2 setting space boundaries of physical and chemical emission reduction evaluation of building projects, wherein the space boundaries comprise production factories and material production equipment for providing building materials and construction auxiliary materials for the projects, transporting the building materials from the production factories to transportation paths and transportation carriers on the projects, transporting the building wastes generated by the projects to transportation paths and transportation carriers of building waste treatment stations for providing recycling treatment for the building wastes generated by the projects, and recycling treatment equipment and facilities for the building wastes;
s2.2, setting emission sources including building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery based on the characteristics of energy conservation, material conservation, water conservation and land conservation of the building in the materialization stage.
3. The method for evaluating the carbon emission reduction of a building according to claim 1 or 2, wherein the specific implementation method of the step S3 comprises the following steps:
s3.1, extracting a reference line building sample which is a building project with the same functional characteristics as the building project to be evaluated within 10 years;
s3.2, geographic boundary: compared with a building project to be evaluated, the baseline building sample is firstly selected to be the same city-level geographic area, and is expanded to a provincial-level geographic area when the sample number requirement cannot be met;
s3.3, building body weight: the difference of building heights of the datum line building sample and the building project to be evaluated is not more than +/-20%, and the difference of building areas of the datum line building sample and the building project to be evaluated is not more than +/-50%;
s3.4, building performance: compared with the building project to be evaluated, the datum line building sample has the safety, durability and comfort meeting the requirements of the same design and construction standard;
s3.5, extracting reference line building samples by adopting a random sampling mode, and setting the number of the extracted reference line building samples to be 10-20.
4. The method for evaluating the carbon emission reduction of a building according to claim 3, wherein the specific implementation method of the step S4 comprises the following steps:
s4.1, constructing a materialized carbon emission model of a building project based on building material consumption, off-site transportation, construction energy consumption, construction auxiliary materials, construction water, temporary roads and garbage recovery, wherein the calculation expression is as follows:
PE＝PE MP φ＝PE MP (1+φ MT +φ CE +φ CA +φ CW +φ CR +φ WT )
wherein PE MP Is the materialized carbon emission caused by building material consumption in project activities, phi is the comprehensive conversion factor of project materialized carbon emission MT Conversion factor phi for carbon emission of off-site transport CE Conversion factor phi of materialized carbon emission of construction energy consumption CA To convert the carbon emission amount of construction auxiliary materials into a conversion factor phi CW Is a conversion factor phi of physicochemical carbon emission of construction water CR Conversion factor phi for materialized carbon emission of temporary road WT Conversion factors of materialized carbon emission for garbage recovery;
s4.2, calculating expression of materialized carbon emission caused by building material consumption in the project setting activity is as follows:
wherein Q is M,i The i-th building material consumption in project activities; PF (physical filter) M,i Carbon emission factor for the ith building material in project campaign;
s4.3, setting a calculation expression of a materialized carbon emission conversion factor of off-site transportation based on transportation carrier energy consumption record, wherein the calculation expression is as follows:
wherein PE MT Is materialized carbon emission caused by off-site transportation in project activities, Q TE,j Consumption of jth energy for off-site transport in project campaign, PF E,j Carbon emission factor for the j-th energy source;
when the energy consumption record of the transport carrier is lacking, the calculation expression of the materialized carbon emission conversion factor of the off-site transport is set based on the transport distance and the weight of the building material, and the calculation expression is as follows:
wherein D is i Off-site distance for ith building material in project activity, PF T,i Carbon emission factor for the transportation mode used for the ith building material in project activity;
s4.4, setting a calculation expression of a materialized carbon emission conversion factor of construction energy consumption:
wherein PE CE Is materialized carbon emission caused by construction energy consumption in project activities, Q CE,j The energy consumption of the j-th energy source for the construction activity in the project activity comprises the energy consumption of construction machinery, equipment and machines, the temporary living and office energy consumption of the field, the temporary lighting energy consumption and the vertical transportation energy consumption;
s4.5, setting a calculation expression of a materialized carbon emission conversion factor of the construction auxiliary material, wherein the calculation expression is as follows:
wherein PE CA PE for materialized carbon emission caused by construction auxiliary materials in project activities CAM Carbon emission caused by consumption of construction auxiliary materials in project activities, PE CAT Carbon emission caused by transportation of construction auxiliary materials in and out of the field in project activities;
the calculation expression of carbon emission caused by the consumption of the construction auxiliary materials is as follows:
wherein Q is l The method comprises the steps of uniformly spreading consumption of first construction auxiliary materials, wherein the turnover rate and the loss rate are considered in project activities, and the consumption comprises templates, brackets and scaffolds; PF (physical filter) l Carbon emission factors of the first construction auxiliary material in project activities;
s4.6, setting a calculation expression of a materialized carbon emission conversion factor of the construction water:
wherein PE CW Is materialized carbon emission caused by construction water in project activities, Q WL For the new water quantity for life of the construction site in project activities, Q WE New water quantity for engineering of construction site in project activity, PF W Carbon emission factor for fresh water;
s4.7, setting a calculation expression of a materialized carbon emission conversion factor of the temporary road:
wherein PE CR PE for materialized carbon emissions from temporary roads in project activity CRM Carbon emissions due to consumption of materials for construction road pavement in project activities, PE CRT Carbon emission caused by off-site transportation of building materials used for paving construction roads in project activities;
s4.8, calculating expression of materialized carbon emission conversion factors of garbage recovery is as follows:
wherein PE WT PE for materialized carbon emissions from garbage collection in project activities WTT PE for carbon emissions caused by construction waste transportation in project activities WTP PE for carbon emissions from construction waste disposal in project activities WTR The indirect carbon recycled by construction waste in project activities is reduced in emission;
the calculated expression of carbon emissions caused by construction waste disposal in project activities is:
wherein Q is WTP,j The consumption of j energy sources for construction garbage treatment in project activities;
the calculation expression of indirect carbon emission reduction recycled by construction waste in project activities is as follows:
wherein Q is RM,i The total amount of the ith regenerated building material generated by garbage recycling treatment in project activities; PF (physical filter) RM,i Carbon emission factors corresponding to the replaced original building materials for the ith regenerated building material;
s4.9, calculating the materialized carbon emission of the building project based on the materialized carbon emission model of the building project and the activity level data of the building project to be evaluated.
5. The method for estimating the emission reduction of carbon in a building according to claim 4, wherein the reference line building sample constructed in step S5 has a calculation expression of the carbon emission model:
BE k ＝BE MP,k φ k ＝BE MP,k (1+φ MT,k +φ CE,k +φ CA,k +φ CW,k +φ CR,k +φ WT,k )
wherein BE k Materialized carbon emissions, phi, for the kth baseline building sample k BE, a comprehensive conversion factor of materialized carbon emission of kth building sample MP,k Materialized carbon emissions, phi, from building material consumption for the kth building sample MT,k Conversion factor phi for chemical carbon emission of kth building sample off-site transport CE,k Construction of a conversion factor of the energy consumption materialized carbon emission for the kth building sample, phi CA,k Conversion factor phi of materialized carbon emission of auxiliary materials for kth building sample construction CW,k Conversion factor phi of physicochemical carbon emission of water for construction of kth building sample CR,k Conversion factor phi for materialized carbon emission of k-th building sample temporary road WT,k Recovering conversion factor phi of materialized carbon emission for kth building sample garbage MT,k 、φ CE,k 、φ CA,k 、φ CW,k 、φ CR,k And phi WT,k Calculating according to the calculation expression provided in the step S4;
and calculating the materialized carbon emission of the baseline building sample based on the carbon emission model of the baseline building sample and the activity level data of the baseline building sample.
6. The method for evaluating the carbon emission reduction of a building according to claim 5, wherein the specific implementation method of the step S6 comprises the following steps:
s6.1, calculating the carbon emission intensity based on the materialized carbon emission amount and the building area of the kth datum line building sample, wherein the calculation expression is as follows:
wherein BI k Carbon emission intensity for kth baseline building sample, A k For the building area of the kth baseline building sample, BI MP,k A materialized carbon strength index for building material consumption of the kth baseline building sample;
s6.2, carbon emission intensity BI constructed based on step S6.1 k Ranking the baseline building samples from low to high, identifying that the first 20% of baseline building samples are included in the baseline scene, and determining the first 20% of samples according to an upward rounding mode when 20% of the total sample is decimal;
s6.3 based on the previous 2Calculating a weighted average BI of baseline physicochemical carbon intensities for 0% of baseline building samples 20 The computational expression is:
wherein BI p′ Materialized carbon Strength of the first 20% baseline building sample at p' th, A p′ Building area for the p' th top 20% baseline building sample; BE MP,p′ Materialized carbon emissions resulting from building material consumption for the p' th top 20% baseline building sample; phi (phi) p′ A comprehensive conversion factor for materialized carbon emissions for the p' th top 20% baseline building sample;
s6.4, calculating a weighted average of baseline materialized carbon intensity based on the first 20% baseline building sample obtained in the step S6.3, and constructing a baseline materialized carbon emission model, wherein the calculation expression is as follows:
wherein A is the building area of the item to be evaluated, gamma A Is the scale factor of the building area of the project to be evaluated and the average of the building areas of the 20% baseline buildings.
7. The method for evaluating the emission reduction of the carbon of the building according to claim 6, wherein the specific implementation method of the step S7 is to evaluate the emission reduction of the carbon of the building based on baseline carbon emission and project carbon emission, and the calculation expression is as follows:
wherein ER is the carbon emission reduction of the building.
8. An electronic device comprising a memory and a processor, the memory storing a computer program, the processor implementing the steps of a method for assessing carbon emission reduction in a building according to any one of claims 1 to 7 when the computer program is executed.
9. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements a method for assessing carbon emission reduction of a building according to any of claims 1-7.
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