CN115796458A - Computing system and computing method for building carbon emission - Google Patents
Computing system and computing method for building carbon emission Download PDFInfo
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Abstract
The invention discloses a system and a method for calculating building carbon emission, wherein the system comprises the following steps: the basic information acquisition module is used for inputting basic information of each stage of the building scheme and vegetation occupation area of each stage in the building area; the carbon emission calculation module is in communication connection with the basic information acquisition module and is used for calculating the carbon emission of each stage according to the basic information of each stage, the operation stage is faster and more accurate based on a monthly average algorithm, the carbon reduction amount of the operation stage is calculated according to the vegetation occupied area of the stage, and then the total carbon emission amount of the building scheme is calculated according to the carbon emission and the carbon reduction amount of each stage; in the building process, when the carbon emission factor is generated, the carbon emission amount and the carbon reduction amount are offset, the carbon emission amount calculation module considers the generated carbon emission amount and the carbon reduction amount, and the estimation accuracy of the total carbon emission amount of the building scheme is improved.
Description
Technical Field
The invention relates to building carbon emission calculation, in particular to a building carbon emission calculation system and a building carbon emission calculation method.
Background
According to statistics, the total carbon emission generated in the field of buildings in China in one year is about 49.97 hundred million tons, which accounts for 50.6 percent of the total carbon emission in China, and the buildings comprise five stages of operation, construction, demolition, production and transportation, wherein the carbon emission in the operation stage accounts for 21.6 percent of the total carbon emission in the buildings.
At present, carbon emission generated by buildings calculated in China is still in a starting stage, time-by-time algorithms are adopted for calculation of heating ventilation and air conditioning systems, the difference of the carbon emission calculated in each stage of design, construction and operation of a building scheme is large, particularly, the carbon emission error obtained by estimation when the building scheme is provided is large, and the building design is difficult to assist. Secondly, the common hourly building energy consumption simulation tool has complex setting of simulation boundary conditions, high requirement on the professional quality of a computing engineer, long time consumption, large computing workload and low consistency of computing results.
Disclosure of Invention
The invention aims to improve the calculation accuracy of carbon emission and provide a calculation system and a calculation method of building carbon emission, which solve the problems that the estimation error of the building carbon emission is large and the building carbon emission cannot be used for assisting subsequent buildings.
The invention is realized by the following technical scheme:
a first aspect provides a system for calculating carbon emissions from a building, comprising:
the basic information acquisition module is used for inputting basic information of each stage of the building scheme and basic vegetation information of each stage in the building area;
and the carbon emission calculation module is in communication connection with the basic information acquisition module and is used for calculating the carbon emission of each stage according to the basic information of each stage, calculating the carbon reduction amount of each stage according to the basic information and the vegetation basic information of each stage, and calculating the total carbon emission amount of the building scheme according to the carbon emission and the carbon reduction amount of each stage.
In the building process, when the carbon emission factor is generated, the condition that partial carbon emission and the vegetation carbon reduction amount are offset exists, the carbon emission calculation module considers the generated carbon emission factor and the offset carbon emission, and the estimation accuracy of the total carbon emission of the building scheme is improved.
Further, the carbon emission amount calculation module includes:
the building material production stage calculation module, the building material transportation stage calculation module, the building stage calculation module, the operation stage calculation module, the removal stage calculation module and the addition module are all in communication connection with the basic information acquisition module; the output ends of the building material production stage calculation module, the building material transportation stage calculation module, the building stage calculation module, the operation stage calculation module and the dismantling stage calculation module are all connected with the input end of the addition module.
The difference of the calculation modes of all stages in the building scheme is large, if a unified calculation mode is used, the error of the calculated carbon emission is large, and the carbon emission is calculated stage by stage according to the building scheme, so that the calculation accuracy of the carbon emission is improved.
Further, the calculation system further comprises a carbon emission evaluation module which is connected with the carbon emission calculation module and used for storing the carbon emission and the optimization strategy of each stage of the reference scheme, and comparing the carbon emission of each stage of the building scheme with the carbon emission of each stage of the reference scheme to obtain the carbon emission evaluation result and the optimization strategy of each stage.
And comparing the carbon emission of each stage of the building scheme with the carbon emission of each stage of the reference scheme to obtain an evaluation result and an optimization strategy, and providing reference for subsequent buildings.
Further, the operation phase calculation module includes: the heating, ventilation and air conditioning system computing unit is in communication connection with the basic information acquisition module and is used for receiving the parameters of the heating, ventilation and air conditioning system, the environmental parameters of the heating, ventilation and air conditioning system, the global warming potential value of the refrigerant and the consumption of the refrigerant, which are sent by the basic information acquisition module, computing the first carbon emission of the heating, ventilation and air conditioning system by using a monthly average algorithm according to the parameters of the heating, ventilation and air conditioning system and the environmental parameters of the heating, ventilation and air conditioning system, computing the second carbon emission of the heating, ventilation and air conditioning system according to the global warming potential value of the refrigerant and the consumption of the refrigerant, and computing the carbon emission of the heating, ventilation and air conditioning system according to the first carbon emission and the second carbon emission of the heating, ventilation and air conditioning system.
The carbon emission factors generated by the consumed refrigerant are also included in the carbon emission of the heating ventilation air-conditioning system, the monthly average algorithm is utilized, the parameters input into the operation stage calculation module are determined, and the calculation accuracy of the carbon emission is improved.
Further, the operation phase calculation module further includes:
the domestic hot water system computing unit, the lighting system computing unit, the elevator system computing unit and the renewable energy system computing unit are in communication connection with the basic information acquisition module, and the lighting system computing unit and the elevator system computing unit are used for computing carbon emission according to the electricity consumption of corresponding systems;
the domestic hot water system calculating unit is used for calculating the carbon emission according to the power consumption and the energy consumption of the corresponding system;
the renewable energy system calculating unit is used for calculating the carbon reduction amount according to the energy (including electric energy and heat energy) generated by the corresponding system.
Further, the operation phase calculation module further includes: the green land carbon sink system computing unit is in communication connection with the basic information acquisition module and is used for receiving vegetation basic information in a building area sent by the basic information acquisition module, the vegetation basic information comprises vegetation occupied area and unit area vegetation carbon reduction amount, and the carbon reduction amount of the green land carbon sink system computing unit is computed according to the vegetation occupied area and the unit area vegetation carbon reduction amount.
The carbon emission amount of the part of the carbon emission amount generated in the operation stage is offset with the carbon emission amount of the renewable energy system and the carbon emission amount of the vegetation, the total carbon emission amount of the building scheme is actually smaller than the sum of the carbon emission amounts generated in all stages, a green land carbon sink system calculation unit is added into the calculation system, the carbon emission amount of the vegetation is calculated independently, then the total carbon emission amount of the building scheme is calculated, and the calculation accuracy of the carbon emission amount is improved.
A second aspect provides a method for calculating building carbon emission, wherein the method is applied to the calculation system, and the method comprises the following steps:
acquiring basic information of each stage in a building scheme and basic vegetation information of each stage in a building area, and calculating the carbon emission of each stage according to the basic information of each stage;
respectively calculating the carbon reduction amount of each stage according to the basic information and the vegetation basic information of each stage;
and calculating the total carbon emission amount of the building scheme according to the carbon emission amount and the carbon reduction amount of each stage.
Furthermore, each stage of the building scheme comprises a building material production stage, a building material transportation stage, a construction stage, an operation stage and a dismantling stage;
the building material production stage, the building material transportation stage, the building stage and the dismantling stage calculate the carbon emission according to the consumption of the building materials and energy required by the corresponding stages and the carbon emission factor for consuming the building materials and the energy;
and in the operation stage, the carbon emission is calculated according to the consumption of the energy, the generation of the energy, the carbon emission factor of the consumed energy and the carbon emission factor of the generated energy.
Further, the formula for calculating the carbon emission in the building material production stage is as follows:
wherein the content of the first and second substances,
represents the carbon emission of the building material produced per unit building area based on the building plan,
showing the consumption of the i-th building material,
represents the carbon emission factor of the i-th building material, and A represents the building area;
the calculation formula of the carbon emission in the building material transportation stage is as follows:
wherein the content of the first and second substances,
which represents the carbon emission of the building material transported per unit building area based on the building plan,
the consumption of the i-th building material is shown,
to representThe carbon emission factor per unit weight transport distance in the transport mode of the i-th building material,
means average shipping distance for the i building material;
the calculation formula of the carbon emission amount in the construction stage is as follows:
wherein the content of the first and second substances,
represents the carbon emission of a building constructed per unit building area based on a building plan,
representing the consumption of the ith energy source required for using the apparatus in the construction stage,
a carbon emission factor representing the i-th energy source required to use the apparatus during the construction phase;
the formula for calculating the carbon emission in the dismantling stage is as follows:
wherein the content of the first and second substances,
representing the amount of carbon emissions for demolishing a building per unit of building area based on a building plan,
representing the consumption of the ith energy source required to use the instrument during the removal stage,
a carbon emission factor representing the i-th energy source required to use the instrument during the demolition phase.
Further, the step of calculating the carbon emission in the operation stage comprises the following steps:
after receiving parameters of the heating, ventilating and air conditioning system, environmental parameters of the heating, ventilating and air conditioning system, a global warming potential value of a refrigerant and consumption of the refrigerant, calculating a first carbon emission amount of the heating, ventilating and air conditioning system by using a monthly average algorithm according to the parameters of the heating, ventilating and air conditioning system and the environmental parameters of the heating, ventilating and air conditioning system, calculating a second carbon emission amount of the heating, ventilating and air conditioning system according to the global warming potential value of the refrigerant and the consumption of the refrigerant, and calculating the carbon emission amount of the heating, ventilating and air conditioning system according to the first carbon emission amount and the second carbon emission amount of the heating, ventilating and air conditioning system;
after receiving the electricity consumption and the energy consumption of the domestic hot water system, calculating the carbon emission of the domestic hot water system;
after receiving the power consumption of the lighting system, calculating the carbon emission of the lighting system;
after receiving the electricity consumption of the elevator system, calculating the carbon emission of the elevator system;
and after receiving the energy (including electric energy and heat energy) generated by the power generation of the renewable energy system, calculating the carbon reduction amount of the renewable energy system.
Compared with the prior art, the invention has the following advantages and beneficial effects:
in the building process, when a carbon emission factor is generated, the condition that partial carbon emission and vegetation carbon reduction amount are offset exists, the carbon emission calculation module is in communication connection with the basic information acquisition module, and after the carbon emission calculation module receives basic information of each stage sent by the basic information acquisition module, the carbon emission and carbon reduction amount of each stage are calculated, the generated carbon emission factor and the offset carbon emission are considered, and the estimation accuracy of the total carbon emission amount of the building scheme is improved.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:
FIG. 1 is a block diagram of a system provided in embodiment 1;
fig. 2 is a system block diagram of the operation phase calculation module provided in embodiment 2.
Reference numbers and corresponding part names in the drawings:
10-a basic information acquisition module, 20-a carbon emission calculation module, 21-a building material production stage calculation module, 22-a building material transportation stage calculation module, 23-a construction stage calculation module, 24-an operation stage calculation module, 241-a heating ventilation air conditioning system calculation unit, 242-a domestic hot water system calculation unit, 243-a lighting system calculation unit, 244-an elevator system calculation unit, 245-a renewable energy system calculation unit, 246-a greenbelt carbon sink system calculation unit, 25-a dismantling stage calculation module, 26-an addition module and 30-a carbon emission evaluation module.
Detailed description of the preferred embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
The embodiment 1 provides a system for calculating carbon emission of a building, as shown in fig. 1, including:
the basic information acquisition module 10 is used for inputting basic information of each stage of the building scheme and basic vegetation information of each stage in the building area;
and a carbon emission amount calculation module 20, which is in communication connection with the basic information acquisition module 10, and is configured to calculate the carbon emission amount of each stage according to the basic information of each stage, calculate the carbon reduction amount of each stage according to the basic information of energy and vegetation generated by the renewable energy system of each stage using the basic information, and calculate the total carbon emission amount of the building scheme according to the carbon emission amount and the carbon reduction amount of each stage.
In the building process, when the carbon emission factor is generated, a situation that part of the carbon emission amount is offset with the carbon reduction amount of the renewable energy system and the carbon reduction amount of the vegetation exists, the carbon emission amount calculation module 20 calculates the carbon emission amount and the carbon reduction amount of each stage by using a monthly average algorithm, not only the generated carbon emission factor but also the offset carbon emission amount are considered, and the estimation accuracy of the total carbon emission amount of the building scheme is improved.
In a specific embodiment, the carbon emission amount calculation module 20 includes:
a building material production stage calculation module 21, which is in communication connection with the basic information acquisition module 10, and is configured to calculate the carbon emission amount in the building material production stage according to the basic information in the building material production stage, calculate the carbon reduction amount in the building material production stage according to the energy and vegetation basic information generated by the renewable energy system in the building material production stage, and calculate the carbon emission amount in the building material production stage according to the carbon emission amount in the building material production stage and the carbon reduction amount in the building material production stage;
a building material transportation stage calculation module 22, which is in communication connection with the basic information acquisition module 10, and is configured to calculate the carbon emission amount in the building material transportation stage according to the basic information in the building material transportation stage, calculate the carbon reduction amount in the building material transportation stage according to the energy and vegetation basic information generated by the renewable energy system in the building material transportation stage using the basic information, and calculate the carbon emission amount in the building material transportation stage according to the carbon emission amount in the building material transportation stage and the carbon reduction amount in the building material transportation stage;
a building stage calculation module 23, communicatively connected to the basic information acquisition module 10, for calculating the carbon emission amount of the building stage according to the basic information of the building stage, calculating the carbon reduction amount of the building stage according to the basic information of the vegetation and the energy generated by the renewable energy system of the building stage using the basic information, and calculating the carbon emission amount of the building stage according to the carbon emission amount of the building stage and the carbon reduction amount of the building stage;
an operation stage calculation module 24, which is in communication connection with the basic information acquisition module 10, and is configured to calculate the carbon emission amount of the operation stage according to the basic information of the operation stage, calculate the carbon reduction amount of the operation stage according to the energy and vegetation basic information generated by the renewable energy system of the operation stage using the basic information, and calculate the carbon emission amount of the operation stage according to the carbon emission amount of the operation stage and the carbon reduction amount of the operation stage;
a demolition stage calculation module 25, communicatively connected to the basic information acquisition module 10, configured to calculate a carbon emission amount of the demolition stage according to the basic information of the demolition stage, calculate a carbon reduction amount of the demolition stage according to energy and vegetation basic information generated by the renewable energy system of the demolition stage using the basic information, and calculate a carbon emission amount of the demolition stage according to the carbon emission amount of the demolition stage and the carbon reduction amount of the demolition stage;
and an adding module 26, connected to the output ends of the building material production stage calculating module 21, the building material transportation stage calculating module 22, the building stage calculating module 23, the operation stage calculating module 24 and the demolition stage calculating module 25, for calculating the total carbon emission amount of the building plan according to the carbon emission amounts of the building material production stage, the building material transportation stage, the building stage, the operation stage and the demolition stage.
The summing module 26 is coupled to a display device for displaying the total carbon emissions.
The difference of the calculation modes of all stages in the building scheme is large, if a unified calculation mode is used, the error of the calculated carbon emission is large, and the carbon emission is calculated stage by stage according to the building scheme, so that the calculation accuracy of the carbon emission is improved.
In a specific embodiment, the calculation system further includes a carbon emission evaluation module 30, connected to the carbon emission calculation module 20, for storing the carbon emission and the optimization strategy of each stage of the reference scheme, and comparing the carbon emission of each stage of the building scheme with the carbon emission of each stage of the reference scheme to obtain the carbon emission evaluation result and the optimization strategy of each stage.
Inputting the carbon emission of each stage into the carbon emission evaluation module 30, calculating the carbon emission of the building in the whole life cycle, comparing the carbon emission of each stage of the building scheme with the carbon emission of each stage of the reference scheme, and if the carbon emission of the building scheme is greater than the carbon emission of the reference scheme, obtaining a corresponding modification suggestion (i.e. an optimization strategy) to provide a reference for the subsequent building.
Examples
Based on the building carbon emission calculation standard GB/T51366-2019 and local standards, a database is established, and carbon emission factors of main energy, consumption of energy required by construction machinery shifts, carbon emission factors of materials during building material production, carbon emission factors of building material transportation and the like are recorded into the database.
The embodiment 2 provides a system for calculating carbon emission of a building, as shown in fig. 2, including:
basic information acquisition module 10, includes:
a construction condition module for inputting basic information of the construction project (including construction type, geographical position, climate zone, carbon emission target value),
the building basic information module is used for inputting building project room information, and comprises room types, room areas, building enclosure materials, building enclosure height, building enclosure width, building enclosure thickness, external window structures, external window structure height, external window structure width, external window openable areas, working day using number, holiday using number and the like, wherein the room types are as follows: offices, meeting rooms, halls, non-air-conditioning rooms, and the like,
a building design module for inputting design parameters of the operational phase, such as: parameters of the heating, ventilating and air conditioning system: the system comprises the types of a cold source, a heat source, a transmission and distribution system and tail-end air treatment equipment of a heating, ventilation and air conditioning system, and parameters of illumination power, equipment power, indoor set temperature and heating and air conditioning running time; environmental parameters of the heating, ventilating and air conditioning system: setting parameters such as outdoor monthly average temperature, annual average temperature, monthly duration, heating and function starting and stopping time and the like according to the geographical position of a project; the water consumption rate of hot water of the domestic hot water system, the number of water consumption calculation units, the number of hours of hot water use in the life of the year, the temperature of hot water, the temperature of cold water, the type of a transmission and distribution system and other parameters; parameters such as the illumination power density value of the illumination system, the illumination power density value of the emergency lamp, the illumination time and the like; parameters such as the number of elevator units and the number of running hours of an elevator system; the solar energy system comprises a renewable energy system, a solar panel, a photovoltaic cell, a solar energy system and a solar energy system, wherein the renewable energy system comprises a heat collection area, an annual average solar irradiation amount, an average heat collection efficiency, a system heat loss rate, a photovoltaic panel clear area, a photovoltaic cell conversion efficiency and a photovoltaic system loss efficiency; the greening type and the greening area of the green land carbon sink system;
the calculation system further includes a carbon emission amount calculation module 20 connected to the basic information acquisition module 10, and configured to calculate the carbon emission amount of each stage according to the basic information of each stage, calculate the carbon reduction amount of each stage according to the basic information of the renewable energy system and the vegetation generated by the renewable energy system of each stage, and calculate the total carbon emission amount of the building plan according to the carbon emission amount and the carbon reduction amount of each stage.
In a specific embodiment, the operation phase calculation module 24 includes: the hvac system calculating unit 241 is communicatively connected to the basic information collecting module 10, and the hvac system calculating unit 241 is configured to receive the parameters of the hvac system, the environmental parameters of the hvac system, the global warming potential of the refrigerant, and the consumption of the refrigerant, which are sent by the basic information collecting module 10, calculate a first carbon emission amount of the hvac system according to the parameters of the hvac system and the environmental parameters of the hvac system by using a monthly average algorithm, calculate a second carbon emission amount of the hvac system according to the global warming potential of the refrigerant and the consumption of the refrigerant, and calculate a carbon emission amount of the hvac system according to the first carbon emission amount and the second carbon emission amount of the hvac system.
The carbon emission factor generated by the consumed refrigerant is also included in the carbon emission of the heating ventilation air-conditioning system, so that the calculation accuracy of the carbon emission is improved.
In a specific embodiment, the operation phase calculation module 24 further includes:
a domestic hot water system computing unit 242, a lighting system computing unit 243, an elevator system computing unit 244 and a renewable energy system computing unit 245 which are in communication connection with the basic information acquisition module 10, wherein the lighting system computing unit 243 and the elevator system computing unit 244 are used for computing carbon emission according to the electricity consumption of corresponding systems;
the domestic hot water system calculating unit 242 is configured to calculate a carbon emission amount according to a power consumption amount and an energy consumption amount of a corresponding system;
the renewable energy system calculation unit 245 is configured to calculate the carbon reduction amount according to the energy (including electric energy and thermal energy) generated by the corresponding system.
In a specific embodiment, the operation phase calculation module 24 further includes: the green land carbon sink system calculation unit 246 is in communication connection with the basic information acquisition module 10, and the green land carbon sink system calculation unit 246 is configured to receive basic vegetation information in a building area sent by the basic information acquisition module 10, where the basic vegetation information includes vegetation floor area and carbon reduction amount per unit area, and calculate the carbon reduction amount of the green land carbon sink system calculation unit 246 according to the vegetation floor area and the carbon reduction amount per unit area.
The carbon emission amount of the part generated in the operation stage is offset with the carbon emission amount of a renewable energy system and the carbon emission amount of a plant carbon sink system, the total carbon emission amount of the building scheme is actually smaller than the sum of the carbon emission amounts generated in all stages, the computing system is added with a green land carbon sink system computing unit 246, the carbon emission amount of vegetation is independently computed, then the total carbon emission amount of the building scheme is computed, and the computing accuracy of the carbon emission amount is improved.
Examples
Embodiment 3 provides a method for calculating building carbon emission, which is applied to the calculation system provided in embodiment 2, and the method includes the following steps:
acquiring basic information of each stage in a building scheme and basic vegetation information of each stage in a building area, and calculating the carbon emission of each stage according to the basic information of each stage;
respectively calculating the carbon reduction amount of each stage according to the energy and vegetation basic information generated by the renewable energy system of each stage by using the basic information;
and calculating the total carbon emission amount of the building scheme according to the carbon emission amount and the carbon reduction amount of each stage.
In a specific embodiment, each stage of the building scheme comprises a building material production stage, a building material transportation stage, a construction stage, an operation stage and a dismantling stage;
the building material production stage, the building material transportation stage, the building stage and the dismantling stage calculate the carbon emission according to the consumption of the building materials and energy required by the corresponding stages and the carbon emission factor for consuming the building materials and the energy;
and calculating the carbon emission according to the energy consumption, the energy generation amount, the carbon emission factor of the consumed energy and the carbon emission factor of the generated energy in the operation stage.
In a specific embodiment, based on the building scheme, the calculation formula of the carbon emission of the building material per unit building area produced in the building material production stage is as follows:
wherein the content of the first and second substances,
represents the carbon emission of the building material produced per unit building area based on the building plan,
the consumption of the i-th building material is shown,
the carbon emission factor of the i-th building material is shown, and A represents the building area.
In a specific embodiment, based on the building scheme, the calculation formula of the carbon emission of the building material transported in the building material transportation stage per unit building area is as follows:
wherein, the first and the second end of the pipe are connected with each other,
which represents the carbon emission of the building material transported per unit building area based on the building plan,
showing the consumption of the i-th building material,
a carbon emission factor per unit weight of a transport distance in the transport mode of the i-th building material,
the average transport distance for the i-th building material is shown.
In a specific embodiment, based on the building scheme, the calculation formula of the carbon emission for building a building per unit building area in the building stage is as follows:
wherein the content of the first and second substances,
represents the carbon emission of a building constructed based on a building plan per unit building area,
representing the consumption of the ith energy source required for using the apparatus in the construction stage,
representing the carbon emission factor of the i-th energy source required for using the apparatus during the construction phase.
In a specific embodiment, based on the building scheme, the calculation formula of the carbon emission of the building demolishing in the demolishing stage per unit building area is as follows:
wherein the content of the first and second substances,
representing the amount of carbon emissions for demolishing a building per unit of building area based on a building plan,
indicating the need for use of the instrument during the removal stageThe amount of consumption of the ith type of energy,
a carbon emission factor representing the i-th energy source required to use the instrument during the demolition phase.
In a specific embodiment, the step of calculating the carbon emission in the operating phase comprises the following steps:
after receiving parameters of the heating, ventilating and air conditioning system, environmental parameters of the heating, ventilating and air conditioning system, a global warming potential value of a refrigerant and consumption of the refrigerant, calculating a first carbon emission amount of the heating, ventilating and air conditioning system by using a monthly average algorithm according to the parameters of the heating, ventilating and air conditioning system and the environmental parameters of the heating, ventilating and air conditioning system, calculating a second carbon emission amount of the heating, ventilating and air conditioning system according to the global warming potential value of the refrigerant and the consumption of the refrigerant, and calculating the carbon emission amount of the heating, ventilating and air conditioning system according to the first carbon emission amount and the second carbon emission amount of the heating, ventilating and air conditioning system;
after receiving the electricity consumption and the energy consumption of the domestic hot water system, calculating the carbon emission of the domestic hot water system;
after receiving the power consumption of the lighting system, calculating the carbon emission of the lighting system;
after receiving the electricity consumption of the elevator system, calculating the carbon emission of the elevator system;
after receiving the generated energy (including electric energy and heat energy) of the renewable energy system, calculating the carbon reduction amount of the renewable energy system. In a specific embodiment, the formula for calculating the carbon emission of the hvac system is as follows:
the heating ventilation designer inputs parameters of the heating ventilation air-conditioning system to the building design module: (models of cold source, heat source, distribution system, terminal air treatment equipment of hvac system, and equipment power, heating and cooling operation time, heating and cooling start-stop time, month duration) and environmental parameters of hvac system (indoor temperature, outdoor month average temperature, year average temperature).
By using
Calculating heating/cooling/heating load: (
Representing heat transfer and heat consumption;
representing ventilation heat consumption;
expressing the heat utilization coefficient;
representing the accumulated solar radiation heat gain in a month;
indicating a monthly cumulative indoor heat gain).
By using
Calculating heat transfer and heat consumption（
Representing the area of the enclosure;
represents a heat transfer coefficient;
represents the indoor calculated temperature;
represents the outdoor monthly average temperature;
representing the ground area;
representing the ground heat transfer coefficient;
represents the annual average temperature;
indicating a monthly duration).
By using
Calculating monthly cumulative ventilation heat consumption (
，
，
Represents the unit ventilation heat consumption;
represents the specific heat capacity per unit volume of air;
a monthly average airflow rate representing ventilation type k;
a temperature adjustment coefficient indicating a ventilation type k;
a dynamics correction factor representing a ventilation type k;
representing the supply air temperature for ventilation type k).
By using
Calculating the cumulative solar radiation heat gain of each month: (
，
By using
Calculating the monthly cumulative indoor heat gain quantity (
，
Representing the direct indoor heat gain of the air-conditioning area;
representing indoor heat gain of adjacent non-air-conditioned areas;
representing the metabolic heat dissipation intensity of personnel;
the heat dissipation intensity of the equipment is represented;
representing the intensity of the heat dissipation of the illumination;
the internal heat dissipation strength of the water system is represented;
the internal heat dissipation strength of the air conditioning system is represented;
the internal heat dissipation strength of the process is represented;
representing the functional space area).
In a specific embodiment, the formula for calculating the carbon emission of the domestic hot water system is as follows:
the drainage designer inputs the hot water usage quota of the domestic hot water, the number of water usage calculation units, the number of hours of annual domestic hot water usage, the hot water temperature, the cold water temperature and the type of the transmission and distribution system into the building design module to obtain the energy consumption of the project domestic hot water system
，
Representing the annual energy consumption of a domestic hot water system;
representing the annual heat consumption of domestic hot water;
indicating the hot water supply heat of the solar system;
the domestic hot water transmission and distribution efficiency is represented;
the average efficiency of a heat source of a domestic hot water system is represented; t represents the number of hours of hot water used in life;
average heat consumption of domestic hot water per hour; m represents the number of units calculated with water;
represents the water quota for hot water;
represents the specific heat capacity of water;
represents the hot water temperature;
represents the cold water temperature;
indicating the hot water density.
The energy consumption comprises the total weight of heating media except electricity, including natural gas, light diesel oil, urban gas and the like; calculating the annual heat consumption of domestic hot water
The heat supply quantity of electricity and other heating media is included, and the heat consumption is converted into electricityThe heat quantity or the heat quantity provided by the heat medium can be converted into the heat medium consumption (taking natural gas as an example G = K Qrt/Q/eta, wherein G is the heat medium consumption, qrt is the natural gas heat supply quantity, Q is the heat source heat quantity, and the heat quantity of the natural gas is 34400-35600 (kj/Nm) 3 ) (ii) a Eta is the heat efficiency of the water heating equipment, and the natural gas is 65-75%; k is the heat loss additional coefficient of the heat medium pipeline, and K = 1.05-1.10).
In the specific embodiment, an electrical designer inputs an illumination power density value, an emergency lamp illumination power density, illumination time and an illumination area to a building design module, and calculates the annual energy consumption of an illumination system:
In the specific embodiment, an electrical designer inputs the number of the elevators, the running hours of the elevators, the type selection of the elevators and the like into a building design module, and calculates the annual energy consumption of an elevator system:
，
representing the annual energy consumption of the elevator system; p represents a specific energy consumption;
representing the average annual operating hours of the elevator; v represents the elevator speed; w represents the rated load capacity of the elevator;
representing the energy consumption of the elevator in standby;
representing the average number of hours of standby per year of the elevator.
In the specific embodiment, an electrical designer inputs the heat collection area, the annual average solar irradiance, the average heat collection efficiency, the system heat loss rate, the clear area of the photovoltaic panel, the photovoltaic cell conversion efficiency, the photovoltaic system loss efficiency (when the renewable energy source adopts solar energy), the elevator model selection and calculates the energy consumption of the renewable energy source system into the building design module.
Compared with a common time-by-time building energy consumption simulation tool in the prior art, the time-by-time building energy consumption simulation tool is complex, has many related calculation factors, has high requirement on professional quality of a calculation engineer and large calculation amount, and has the problem of low calculation result consistency.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A system for calculating carbon emissions from a building, comprising:
the basic information acquisition module (10) is used for inputting basic information of each stage of the building scheme and basic vegetation information of each stage in the building area;
and the carbon emission calculation module (20) is in communication connection with the basic information acquisition module (10) and is used for calculating the carbon emission of each stage according to the basic information of each stage, calculating the carbon reduction amount of each stage according to the basic information of each stage and the vegetation basic information, and calculating the total carbon emission amount of the building scheme according to the carbon emission and the carbon reduction amount of each stage.
2. A system for calculating carbon emissions from buildings according to claim 1, characterized in that the carbon emissions calculation module (20) comprises:
the building material transportation phase calculation system comprises a building material production phase calculation module (21), a building material transportation phase calculation module (22), a construction phase calculation module (23), an operation phase calculation module (24), a dismantling phase calculation module (25) and an addition module (26), wherein the building material production phase calculation module (21), the building material transportation phase calculation module (22), the construction phase calculation module (23), the operation phase calculation module (24) and the dismantling phase calculation module (25) are all in communication connection with a basic information acquisition module (10); the output ends of the building material production stage calculation module (21), the building material transportation stage calculation module (22), the building stage calculation module (23), the operation stage calculation module (24) and the removal stage calculation module (25) are all connected with the input end of the addition module (26).
3. The system for calculating the carbon emission of the building according to claim 1, further comprising a carbon emission evaluation module (30) connected to the carbon emission calculation module (20) and configured to store the carbon emission and the optimization strategy of each stage of the reference scheme, and compare the carbon emission of each stage of the building scheme with the carbon emission of each stage of the reference scheme to obtain the evaluation result of the carbon emission and the optimization strategy of each stage.
4. A building carbon emissions calculation system as claimed in claim 2, wherein the operational phase calculation module (24) comprises: the heating, ventilation and air-conditioning system calculating unit (241) is in communication connection with the basic information acquisition module (10), and the heating, ventilation and air-conditioning system calculating unit (241) is used for receiving the parameters of the heating, ventilation and air-conditioning system, the environmental parameters of the heating, ventilation and air-conditioning system, the global warming potential value of the refrigerant and the consumption of the refrigerant, which are sent by the basic information acquisition module (10), calculating the first carbon emission amount of the heating, ventilation and air-conditioning system according to the parameters of the heating, ventilation and air-conditioning system and the environmental parameters of the heating, ventilation and air-conditioning system by using a monthly average algorithm, calculating the second carbon emission amount of the heating, ventilation and air-conditioning system according to the global warming potential value of the refrigerant and the consumption of the refrigerant, and calculating the carbon emission amount of the heating, ventilation and air-conditioning system according to the first carbon emission amount and the second carbon emission amount of the heating, ventilation and air-conditioning system.
5. A building carbon emissions calculation system as claimed in claim 2, wherein the operational phase calculation module (24) further comprises:
the domestic hot water system computing unit (242), the lighting system computing unit (243), the elevator system computing unit (244) and the renewable energy system computing unit (245) are in communication connection with the basic information acquisition module (10), and the lighting system computing unit (243) and the elevator system computing unit (244) are used for computing carbon emission according to electricity consumption of corresponding systems;
the domestic hot water system calculating unit (242) is used for calculating the carbon emission according to the electricity consumption and the energy consumption of the corresponding system;
the renewable energy system calculation unit (245) is used for calculating the carbon reduction amount according to the energy generated by the corresponding system.
6. A building carbon emissions calculation system as claimed in claim 2, wherein the operational phase calculation module (24) further comprises: the green land carbon sink system computing unit (246) is in communication connection with the basic information acquisition module (10), the green land carbon sink system computing unit (246) is used for receiving vegetation basic information in a building area sent by the basic information acquisition module (10), the vegetation basic information comprises vegetation land areas and unit area vegetation carbon reduction amount, and the carbon reduction amount of the green land carbon sink system computing unit (246) is computed according to the vegetation land areas and the unit area vegetation carbon reduction amount.
7. A method for calculating carbon emission of a building, which is applied to the calculation system according to any one of claims 1 to 6, the method comprising the steps of:
acquiring basic information of each stage in a building scheme and basic vegetation information of each stage in a building area, and calculating carbon emission of each stage according to the basic information of each stage;
respectively calculating the carbon reduction amount of each stage according to the basic information and the basic vegetation information of each stage;
and calculating the total carbon emission amount of the building scheme according to the carbon emission amount and the carbon reduction amount of each stage.
8. The method for calculating the carbon emission of the building as claimed in claim 7, wherein the stages of the building scheme comprise a building material production stage, a building material transportation stage, a construction stage, an operation stage and a demolition stage;
the building material production stage, the building material transportation stage, the building stage and the dismantling stage calculate the carbon emission according to the consumption of building materials and energy required by the corresponding stages and carbon emission factors consuming the building materials and the energy;
and calculating the carbon emission according to the energy consumption and the carbon emission factor of the consumed energy in the operation stage.
9. The method for calculating the carbon emission of the building as claimed in claim 8, wherein the carbon emission of the building material production stage is calculated according to the following formula:
wherein the content of the first and second substances,
represents the carbon emission of the building material produced per unit building area based on the building plan,
the consumption of the i-th building material is shown,
represents the carbon emission factor of the i-th building material, and A represents the building area;
the calculation formula of the carbon emission in the building material transportation stage is as follows:
wherein the content of the first and second substances,
which represents the carbon emission of the building material transported per unit building area based on the building plan,
the consumption of the i-th building material is shown,
a carbon emission factor per unit weight of a transport distance in the transport mode of the i-th building material,
means average shipping distance for the i building material;
the calculation formula of the carbon emission amount in the construction stage is as follows:
wherein the content of the first and second substances,
carbon raft for representing building of unit building area based on building planThe amount of the waste water is put in the waste water tank,
representing the consumption of the ith energy source required for using the apparatus in the construction stage,
a carbon emission factor representing the i-th energy source required to use the apparatus during the construction phase;
the calculation formula of the carbon emission in the dismantling stage is as follows:
wherein the content of the first and second substances,
representing the amount of carbon emissions for demolishing a building per unit of building area based on a building plan,
representing the consumption of the ith energy source required to use the instrument during the removal stage,
a carbon emission factor representing the i-th energy source required to use the instrument during the demolition phase.
10. The method for calculating the carbon emission of the building as claimed in claim 8, wherein the step of calculating the carbon emission of the operation stage comprises the following steps:
after receiving parameters of the heating, ventilating and air conditioning system, environmental parameters of the heating, ventilating and air conditioning system, a global warming potential value of a refrigerant and consumption of the refrigerant, calculating a first carbon emission amount of the heating, ventilating and air conditioning system by using a monthly average algorithm according to the parameters of the heating, ventilating and air conditioning system and the environmental parameters of the heating, ventilating and air conditioning system, calculating a second carbon emission amount of the heating, ventilating and air conditioning system according to the global warming potential value of the refrigerant and the consumption of the refrigerant, and calculating the carbon emission amount of the heating, ventilating and air conditioning system according to the first carbon emission amount and the second carbon emission amount of the heating, ventilating and air conditioning system;
after receiving the electricity consumption and the energy consumption of a domestic hot water system, calculating the carbon emission of the domestic hot water system;
after receiving the power consumption of the lighting system, calculating the carbon emission of the lighting system;
after receiving the electricity consumption of the elevator system, calculating the carbon emission of the elevator system;
and after receiving the energy generated by the renewable energy system, calculating the carbon reduction amount of the renewable energy system.
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