Building full life cycle carbon emission calculation method

Abstract

The invention relates to a building full life cycle carbon emission calculation method. The method comprises the following steps: (1) obtaining the carbon emission of a heating ventilation air conditioning system; (2) obtaining the carbon emission of the domestic hot water system; (3) acquiring the carbon emission of the lighting and elevator system; (4) obtaining the carbon emission of the renewable energy system; (5) obtaining the carbon emission of the building during operation based on the results of the step (1) to the step (4); (6) obtaining carbon emission generated in the building material production and transportation stages; and (7) based on the results of the step (5) and the step (6), obtaining the carbon emission in the whole life cycle of the building. The method for calculating the carbon emission of different systems in the whole life cycle of the building is provided, and a theoretical basis is provided for digital and informatization management of the carbon emission of the building.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carbon emission, in particular to a building full life cycle carbon emission calculation method. BACKGROUND

[0002] Climate change is one of the most serious challenges currently faced by mankind, and excessive emission of greenhouse gases (especially carbon dioxide) is the main cause of global warming.

[0003] The building field is a major consumer of energy consumption and carbon dioxide emission. Data shows that building energy consumption accounts for about 40% of China's total social energy consumption, and nearly 50% of China's carbon emissions come from building life cycle energy consumption. The construction industry has become a major carbon emitter, ranking with the industry and the transportation industry. However, the calculation of building carbon emission in the prior art is often not comprehensive, and does not cover the full life cycle of the building, and the calculation standard is not uniform, so that the monitoring and statistics of building carbon emission are not accurate enough. SUMMARY

[0004] The purpose of the present application is to provide a building full life cycle carbon emission calculation method, which gives the calculation method of the carbon emission of each system in the full life cycle of the building, and provides a theoretical basis for the digitalization and informatization management of building carbon emission.

[0005] To achieve the above purpose, on the one hand, the present application provides a building full life cycle carbon emission calculation method, comprising the following steps:

[0006] (1) obtaining the carbon emission of the heating ventilation and air conditioning system;

[0007] (2) obtaining the carbon emission of the domestic hot water system;

[0008] (3) obtaining the carbon emission of the lighting and elevator system;

[0009] (4) obtaining the carbon emission of the renewable energy system;

[0010] (5) obtaining the carbon emission of the building during operation based on the results of steps (1) to (4);

[0011] (6) obtaining the carbon emission generated in the building material production and transportation stage;

[0012] (7) obtaining the building full life cycle carbon emission based on the results of steps (5) and (6).

[0013] Preferably, the carbon emission of the heating ventilation and air conditioning system is calculated by the following formula:

[0014] ;

[0015] wherein C r is the carbon emission of the building using the refrigerant, r is the refrigerant type, m r is the refrigerant charge of the equipment, y e is the service life of the equipment, GWP r is the global warming potential of the refrigerant r.

[0016] Preferably, the annual heat consumption of the building hot water in the hot water system is calculated by the following formula:

[0017] ;

[0018] ;

[0019] wherein Q r is the annual heat consumption of the hot water, Q rp is the hourly average heat consumption of the hot water, T is the annual hot water usage hours, m is the water calculation unit, q r is the hot water water quota, p r is the hot water density, t r is the set hot water temperature, t l is the set cold water temperature, C r is the carbon emission of the building using the refrigerant.

[0020] Preferably, the energy consumption of the hot water system is calculated by the following formula:

[0021] ;

[0022] wherein E w is the annual energy consumption of the hot water system, Q r is the annual heat consumption of the hot water, Q s is the hot water heat provided by the solar system, η r is the hot water delivery efficiency, η w is the annual average efficiency of the hot water system heat source.

[0023] Preferably, the carbon emission of the lighting system in the lighting and elevator system is calculated by the following formula:

[0024] ;

[0025] E l is the annual energy consumption of the lighting system, P i，j is the lighting power density value of the i-th room on the j-th day, A i is the lighting area of the i-th room, t i,j is the lighting duration of the i-th room on the j-th day, P pFor emergency light illumination power density, A is the building area.

[0026] Preferably, the carbon emission of the elevator system in the lighting and elevator system is calculated by the following formula:

[0027] ;

[0028] In the formula, E e is the annual energy consumption of the elevator, P is the specific energy consumption, t a is the average annual operating hours of the elevator, V is the speed of the elevator, W is the rated load of the elevator, E standby is the energy consumption when the elevator is on standby, t s is the average annual standby hours of the elevator.

[0029] Preferably, the renewable energy system includes a solar domestic hot water system, a photovoltaic system, a ground source heat pump system, and a wind power generation system, and the carbon emission of the solar domestic hot water system is calculated by the following formula:

[0030] The energy provided by the solar domestic hot water system is calculated by the following formula:

[0031] ;

[0032] In the formula, Q s,a is the annual energy provided by the solar hot water system, A c is the area of the solar collector, J T is the annual average solar radiation on the light receiving surface of the solar collector, η cd is the average collector efficiency based on the total area, η L is the heat loss rate of the pipeline and heat storage device;

[0033] The annual power generation of the photovoltaic system can be calculated by the following formula:

[0034] ;

[0035] In the formula, E pv is the annual power generation of the photovoltaic system, I is the annual solar radiation intensity on the surface of the photovoltaic cell, K E is the conversion efficiency of the photovoltaic cell, K S is the loss efficiency of the photovoltaic system, A p is the net area of the photovoltaic panel of the photovoltaic system;

[0036] The energy saving amount of the ground source heat pump system is calculated in the energy consumption of the heating, ventilation and air conditioning system;

[0037] The annual power generation of the wind turbine generator set can be calculated by the following formula:

[0038] ;

[0039] ;

[0040] ;

[0041] ;

[0042] ;

[0043] In the formula, E wt The annual power generation of the wind turbine generator is given by ρ, where ρ is the air density and C is the density of the air. R (z) is the roughness coefficient calculated based on height, KR is the site factor, z0 is the surface roughness coefficient, V0 is the annual available average wind speed, and A w Where D is the windward area of ​​the wind turbine blades, EPF is the factor calculated based on hourly wind speeds from typical meteorological year data, APD is the annual average energy density, and V is the wind turbine blade diameter. i For hourly wind speed, K WT This refers to the conversion efficiency of the wind turbine generator set.

[0044] Carbon emissions during the building construction phase should include carbon emissions generated from the completion of each sub-project and the implementation of various measures and projects. Carbon emissions during the building demolition phase should include carbon emissions generated from manual demolition and the energy consumed by the machinery used for small-scale demolition. Preferably, the carbon emissions generated during the building construction process are calculated using the following formula:

[0045] ,

[0046] In the above formula, C JZ E represents the carbon emissions per unit building area during the building construction phase. jz,i Let EF be the total energy consumption of type i during the building construction phase. i Let A be the carbon emission factor for the i-th energy type, and A be the building area.

[0047] The carbon emissions generated during building demolition are calculated using the following formula:

[0048] ,

[0049] In the above formula, C cc E represents the carbon emissions per unit building area during the building demolition phase. cc,i Let EF be the total energy consumption of type i during the building demolition phase. i Let A be the carbon emission factor for the i-th type of energy, and A be the building area.

[0050] Preferably, the carbon emissions generated during the production of the building materials are calculated using the following formula:

[0051] ,

[0052] In the above formula, C JC C represents the carbon emissions per unit building area during the building materials production and transportation phases. sc For carbon emissions during the building materials production stage, C ys A represents the carbon emissions during the transportation of building materials, and A represents the building area.

[0053] Specifically,

[0054] ,

[0055] In the above formula, M i Let F be the consumption of the i-th type of building material. i Let be the carbon emission factor of the i-th building material;

[0056] ,

[0057] In the above formula, M i Let D be the consumption of the i-th type of building material. i Let T be the average transportation distance of the i-th type of building material. i Let be the carbon emission factor per unit weight of transport distance for the i-th type of building material under the transportation method.

[0058] Preferably, the carbon emissions of the building during operation are calculated using the following formula:

[0059]

[0060] ,

[0061] In the above formula, C M E represents carbon emissions per unit building area during the building's operation phase. i Annual energy consumption of building type i, EF i E represents the carbon emission factor for energy type i. i,j For the energy consumption of type i in system j, ER i,j The j-th type of system consumes the i-th type of energy provided by renewable energy systems, where i is the type of energy-consuming terminal in the building, including electricity, gas, oil, and municipal heating, and j is the type of building energy system, including heating, air conditioning, lighting, and domestic hot water systems. p y represents the annual carbon reduction of the building green space carbon sink system, y represents the building design life, and A represents the building area;

[0062] ,

[0063] In the above formula, N represents the total number of planting method types, and F p,i Let D be the carbon dioxide sequestration per unit area of ​​green space for planting method i. l,i Let be the green area of ​​the i-th planting method.

[0064] The present invention has the following advantages due to the adoption of the above technical solutions:

[0065] This invention employs the aforementioned method for calculating carbon emissions throughout the entire life cycle of a building, providing a method for calculating carbon emissions from different systems throughout the building's life cycle, and offering a theoretical basis for the digital and information-based management of building carbon emissions. Attached Figure Description

[0066] Figure 1 This is a flowchart of the method for calculating carbon emissions throughout the entire life cycle of a building, as provided in this embodiment of the invention. Detailed Implementation

[0067] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0068] In the following description, several embodiments of this application are provided. Different embodiments can be substituted or combined. Therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then this application should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.

[0069] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this application. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0070] Climate change is one of the most serious challenges facing humanity today, and excessive emissions of greenhouse gases (especially carbon dioxide) are the main cause of global warming.

[0071] The construction sector is a major consumer of energy and emitter of carbon dioxide. Data shows that building energy consumption accounts for approximately 40% of my country's total social energy consumption, and nearly 50% of the nation's carbon emissions come from the energy consumption throughout the building's life cycle. The construction industry has become a major carbon emitter alongside industry and transportation. Therefore, for newly constructed buildings, it is crucial to vigorously develop green buildings, promote the implementation of green building standards, and strengthen planning, design, construction, and operation management. Advocating green and low-carbon design concepts and fully utilizing natural ventilation and lighting can reduce residential energy intensity. It is also essential to encourage all newly constructed government-invested public buildings and large public buildings in eligible regions to be rated as star-level green buildings. However, current technologies for calculating building carbon emissions are often incomplete, failing to cover the entire building life cycle, resulting in inaccurate monitoring and statistics of building carbon emissions.

[0072] To address the aforementioned problems, this invention provides a method for calculating the carbon emissions of a building throughout its entire life cycle. This method is applicable to calculating carbon emissions during the building design phase or after construction, and includes the following steps:

[0073] (1) Obtain the carbon emissions of the HVAC system;

[0074] (2) Obtain the carbon emissions of the domestic hot water system;

[0075] (3) Obtain carbon emissions from lighting and elevator systems;

[0076] (4) Obtain carbon emissions from renewable energy systems;

[0077] (5) Based on the results of steps (1) to (4), obtain the carbon emissions of the building during operation;

[0078] (6) Obtain the carbon emissions generated during the production and transportation of building materials;

[0079] (7) Based on the results of steps (5) and (6), the carbon emissions of the building throughout its entire life cycle are obtained.

[0080] The scope of carbon emission calculation during the building operation phase includes the carbon emissions from heating, ventilation and air conditioning, domestic hot water, lighting and elevators, renewable energy, and building carbon sink systems during the building operation period. In addition, the building's design life should be consistent with the design documents during the calculation process. If the design documents cannot be provided, it should be calculated as 50 years.

[0081] Preferably, the carbon emissions of the HVAC system are calculated using the following formula:

[0082] ;

[0083] In the formula, C rThe carbon emissions generated by the use of refrigerant in buildings, where r is the type of refrigerant and m is the carbon emissions. r The refrigerant charge of the equipment, y e For the lifespan of the equipment, GWP r represents the global warming value for refrigerant r.

[0084] Preferably, the annual heat consumption of domestic hot water in the building in the domestic hot water system is calculated using the following formula:

[0085] ;

[0086] ;

[0087] In the formula, Q r Q represents the annual heat consumption for domestic hot water. rp Let T be the average hourly heat consumption for domestic hot water, m be the annual number of hours of domestic hot water use, and q be the number of water consumption units. r For hot water consumption quota, ρ r For the density of hot water, t r To set the hot water temperature, t l To set the cold water temperature, C r Carbon emissions generated from the use of refrigerants in buildings.

[0088] Preferably, the energy consumption of the domestic hot water system is calculated using the following formula:

[0089] ;

[0090] In the formula, E w Q represents the annual energy consumption of the domestic hot water system. r Q represents the annual heat consumption for domestic hot water. s η is the amount of domestic hot water heat provided by the solar energy system. r For the efficiency of domestic hot water distribution, η w The annual average efficiency of the heat source for the domestic hot water system.

[0091] Preferably, the carbon emissions of the lighting system in the lighting and elevator system are calculated using the following formula:

[0092] ;

[0093] E l P is the annual energy consumption of the lighting system. i，j Let A be the lighting power density value of the i-th room on day j. i Let t be the lighting area of ​​the i-th room. i,j P represents the lighting duration of the i-th room on day j. p Where A is the power density of emergency lighting and A is the building area.

[0094] Preferably, the carbon emissions of the elevator system in the lighting and elevator system are calculated using the following formula:

[0095] ;

[0096] In the formula, E e Let P be the annual elevator energy consumption, and t be a specific energy consumption. a V is the elevator's average annual operating hours, V is the elevator speed, W is the elevator's rated load capacity, and E is the elevator's rated load capacity. standby Energy consumption of the elevator during standby, t s This represents the average annual standby hours of the elevator.

[0097] Preferably, the renewable energy system includes a solar domestic hot water system, a photovoltaic system, a ground source heat pump system, and a wind power generation system. The energy provided by the solar hot water system should not be included in the energy savings of the domestic hot water system, while the energy savings of the ground source heat pump system should be included in the energy consumption of the HVAC system. Specifically, the carbon emissions of the solar domestic hot water system are calculated using the following formula:

[0098] The energy provided by a solar-powered domestic hot water system is calculated using the following formula:

[0099] ;

[0100] In the formula Q s,a For the annual energy supply of the solar water heating system, A c For the area of ​​the solar collector, J T η represents the annual average solar irradiance on the light-receiving surface of the solar collector. cd η is the average collector efficiency based on the total area. L The heat loss rate of pipelines and thermal storage devices;

[0101] The annual power generation of the photovoltaic system can be calculated using the following formula:

[0102] ;

[0103] In the formula E pv K represents the annual power generation of the photovoltaic system, I represents the annual solar radiation intensity on the surface of the photovoltaic cells, and K represents the annual power generation of the photovoltaic system. E K represents the conversion efficiency of photovoltaic cells. S For the loss efficiency of the photovoltaic system, A p The net area of ​​the photovoltaic panels in the photovoltaic system;

[0104] The energy savings of the ground source heat pump system are included in the energy consumption of the HVAC system.

[0105] The annual power generation of the wind turbine generator set can be calculated using the following formula:

[0106] ;

[0107] ;

[0108] ;

[0109] ;

[0110]

[0111] In the formula, E wt The annual power generation of the wind turbine generator is given by ρ, where ρ is the air density and C is the density of the air. R (z) is the roughness coefficient calculated based on height, KR is the site factor, z0 is the surface roughness coefficient, V0 is the annual available average wind speed, and A w Where D is the windward area of ​​the wind turbine blades, EPF is the factor calculated based on hourly wind speeds from typical meteorological year data, APD is the annual average energy density, and V is the wind turbine blade diameter. i For hourly wind speed, K WT This refers to the conversion efficiency of the wind turbine generator set.

[0112] Preferably, the carbon emissions generated during the construction of the building are calculated using the following formula:

[0113] ,

[0114] In the above formula, C JZ E represents the carbon emissions per unit building area during the building construction phase. jz,i Let EF be the total energy consumption of type i during the building construction phase. i Let A be the carbon emission factor for the i-th energy type, and A be the building area.

[0115] In a specific embodiment of this application, the energy consumption of the construction process energy consumption estimation method should be calculated according to the following formula:

[0116] E jz =E fx +E cs ;

[0117] In the above formula, E jz E represents the total energy consumption during the building construction phase. fx E represents the total energy consumption of the sub-projects. cs This represents the total energy consumption of the project.

[0118] Specifically,

[0119]

[0120] ,

[0121] In the above formula, Q fx,i f represents the quantity of the i-th item in the sub-item project. fx,i Let T be the energy consumption coefficient of the i-th item in the sub-item project. i,j R represents the unit workload consumption of the j-th type of construction machinery in the i-th project. j E represents the energy consumption per unit shift of the j-th type of construction machinery in the i-th project. jj,i For the i-th project, small construction machinery is not included in the machine shift consumption, where i is the project number in the sub-item project and j is the construction machinery number.

[0122] The carbon emissions generated during building demolition are calculated using the following formula:

[0123] ,

[0124] In the above formula, C cc E represents the carbon emissions per unit building area during the building demolition phase. cc,i Let EF be the total energy consumption of type i during the building demolition phase. i Let A be the carbon emission factor for the i-th type of energy, and A be the building area.

[0125] Preferably, the carbon emissions generated during the production of the building materials are calculated using the following formula:

[0126] ,

[0127] In the above formula, C JC C represents the carbon emissions per unit building area during the building materials production and transportation phases. sc For carbon emissions during the building materials production stage, C ys A represents the carbon emissions during the transportation of building materials, and A represents the building area.

[0128] Specifically,

[0129] ,

[0130] In the above formula, M i Let F be the consumption of the i-th type of building material. i Let be the carbon emission factor of the i-th building material;

[0131] ,

[0132] In the above formula, M i Let D be the consumption of the i-th type of building material. i Let T be the average transportation distance of the i-th type of building material. i Let be the carbon emission factor per unit weight of transport distance for the i-th type of building material under the transportation method.

[0133] Preferably, the carbon emissions of the building during operation are calculated using the following formula:

[0134]

[0135] ,

[0136] In the above formula, C M E represents carbon emissions per unit building area during the building's operation phase. i Annual energy consumption of building type i, EF i E represents the carbon emission factor for energy type i. i,j For the energy consumption of type i in system j, ER i,j The j-th type of system consumes the i-th type of energy provided by renewable energy systems, where i is the type of energy-consuming terminal in the building, including electricity, gas, oil, and municipal heating, and j is the type of building energy system, including heating, air conditioning, lighting, and domestic hot water systems. p y represents the annual carbon reduction of the building green space carbon sink system, y represents the building design life, and A represents the building area;

[0137] ,

[0138] In the above formula, N represents the total number of planting method types, and F p,i Let D be the carbon dioxide sequestration per unit area of ​​green space for planting method i. l,i Let be the green area of ​​the i-th planting method.

[0139] This invention also provides a computer-readable storage medium having a computer program stored thereon, the computer-readable storage medium storing instructions that, when executed on a computer or processor, cause the computer or processor to perform the steps of the method described in any of the preceding embodiments.

[0140] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in form and detail of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A method for calculating the carbon emissions of a building throughout its entire life cycle, characterized in that, Includes the following steps: (1) Obtain the carbon emissions of the HVAC system; (2) Obtain the carbon emissions of the domestic hot water system; (3) Obtain carbon emissions from lighting and elevator systems; (4) Obtain carbon emissions from renewable energy systems; (5) Based on the results of steps (1) to (4), obtain the carbon emissions of the building during operation; (6) Obtain the carbon emissions generated during the production and transportation of building materials; (7) Based on the results of steps (5) and (6), the carbon emissions of the building throughout its entire life cycle are obtained.

2. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The carbon emissions of the HVAC system are calculated using the following formula: ； In the formula, C r The carbon emissions generated by the use of refrigerant in buildings, where r is the type of refrigerant and m is the carbon emissions. r The refrigerant charge of the equipment, y e For the lifespan of the equipment, GWP r represents the global warming value for refrigerant r.

3. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The annual heat consumption of domestic hot water in the building's domestic hot water system is calculated using the following formula: ； ； In the formula, Q r Q represents the annual heat consumption for domestic hot water. rp Let T be the average hourly heat consumption for domestic hot water, m be the annual number of hours of domestic hot water use, and q be the number of water consumption units. r For hot water consumption quota, ρ r For the density of hot water, t r To set the hot water temperature, t l To set the cold water temperature, C r Carbon emissions generated from the use of refrigerants in buildings.

4. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 3, characterized in that, The energy consumption of the domestic hot water system is calculated using the following formula: ； In the formula, E w Q represents the annual energy consumption of the domestic hot water system. r Q represents the annual heat consumption for domestic hot water. s η is the amount of domestic hot water heat provided by the solar energy system. r For the efficiency of domestic hot water distribution, η w The annual average efficiency of the heat source for the domestic hot water system.

5. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The carbon emissions of the lighting system in the lighting and elevator system are calculated using the following formula: ； E l P is the annual energy consumption of the lighting system. i，j Let A be the lighting power density value of the i-th room on day j. i Let t be the lighting area of ​​the i-th room. i,j P represents the lighting duration of the i-th room on day j. p Where A is the power density of emergency lighting and A is the building area.

6. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The carbon emissions of the elevator system in the lighting and elevator system are calculated using the following formula: ； In the formula, E e Let P be the annual elevator energy consumption, and t be a specific energy consumption. a V is the elevator's average annual operating hours, V is the elevator speed, W is the elevator's rated load capacity, and E is the elevator's rated load capacity. standby Energy consumption of elevator during standby, t s This represents the average annual standby hours of the elevator.

7. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The renewable energy system includes a solar domestic hot water system, a photovoltaic system, a ground source heat pump system, and a wind power generation system. The carbon emissions of the solar domestic hot water system are calculated using the following formula: The energy provided by a solar-powered domestic hot water system is calculated using the following formula: ； In the formula Q s,a For the annual energy supply of the solar water heating system, A c For the area of ​​the solar collector, J T η represents the annual average solar irradiance on the light-receiving surface of the solar collector. cd η is the average collector efficiency based on the total area. L This refers to the heat loss rate of pipelines and thermal storage devices; The annual power generation of the photovoltaic system can be calculated using the following formula: ； In the formula E pv K represents the annual power generation of the photovoltaic system, I represents the annual solar radiation intensity on the surface of the photovoltaic cells, and K represents the annual power generation of the photovoltaic system. E K represents the conversion efficiency of photovoltaic cells. S For the loss efficiency of the photovoltaic system, A p The net area of ​​the photovoltaic panels in the photovoltaic system; The energy savings of the ground source heat pump system are included in the energy consumption of the HVAC system. The annual power generation of the wind turbine generator set can be calculated using the following formula: ； ； ； ； ； In the formula, E wt The annual power generation of the wind turbine generator is given by ρ, where ρ is the air density and C is the density of the air. R (z) is the roughness coefficient calculated based on height, K R Here, z0 is the surface roughness coefficient, V0 is the annual available average wind speed, and A is the site factor. w Where D is the windward area of ​​the wind turbine blades, EPF is the factor calculated based on hourly wind speeds from typical meteorological year data, APD is the annual average energy density, and V is the wind turbine blade diameter. i For hourly wind speed, K WT This refers to the conversion efficiency of the wind turbine generator set.

8. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The carbon emissions generated during the construction of the building are calculated using the following formula: ， In the above formula, C JZ E represents the carbon emissions per unit building area during the building construction phase. jz,i Let EF be the total energy consumption of type i during the building construction phase. i Let A be the carbon emission factor for the i-th energy type, and A be the building area. The carbon emissions generated during building demolition are calculated using the following formula: ， In the above formula, C cc E represents the carbon emissions per unit building area during the building demolition phase. cc,i Let EF be the total energy consumption of type i during the building demolition phase. i Let A be the carbon emission factor for the i-th type of energy, and A be the building area.

9. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The carbon emissions generated during the production of the building materials are calculated using the following formula: ， In the above formula, C JC C represents the carbon emissions per unit building area during the production and transportation of building materials. sc For carbon emissions during the building materials production stage, C ys A represents the carbon emissions during the transportation of building materials, and A represents the building area. Specifically, ， In the above formula, M i Let F be the consumption of the i-th type of building material. i Let be the carbon emission factor of the i-th building material; ， In the above formula, M i Let D be the consumption of the i-th type of building material. i Let T be the average transportation distance of the i-th type of building material. i Let be the carbon emission factor per unit weight of transport distance for the i-th type of building material under the transportation method.

10. The method for calculating the carbon emissions of a building throughout its entire life cycle according to claim 1, characterized in that, The carbon emissions of the building during operation are calculated using the following formula: ， ， In the above formula, C M E represents carbon emissions per unit building area during the building's operation phase. i Annual energy consumption of building type i, EF i E represents the carbon emission factor for energy type i. i,j For the energy consumption of type i in system j, ER i,j The j-th type of system consumes the i-th type of energy provided by renewable energy systems, where i is the type of energy-consuming terminal in the building, including electricity, gas, oil, and municipal heating, and j is the type of building energy system, including heating, air conditioning, lighting, and domestic hot water systems. p y represents the annual carbon reduction of the building green space carbon sink system, y represents the building design life, and A represents the building area; ， In the above formula, N represents the total number of planting method types, and F p,i Let D be the carbon dioxide sequestration per unit area of ​​green space for planting method i. l,i Let be the green area of ​​the i-th planting method.

Images