CN115908050A - Power equipment carbon footprint accounting method - Google Patents
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Abstract
The invention discloses a method for accounting carbon footprint of power equipment, which comprises the following steps: setting a research target and a power equipment category; determining a functional unit for carbon footprint accounting used by the electric power equipment according to the category of the electric power equipment, and drawing a life cycle flow chart; and determining a system boundary for accounting the carbon footprint used by the power generation equipment and the power supply equipment through the life cycle flow chart, collecting required data according to the system boundary, substituting the collected data into an accounting formula for the carbon footprint used by the power equipment, and calculating to obtain the carbon emission of the power equipment in the use stage. According to the carbon footprint accounting method for the power equipment, the carbon emission amount of the power equipment during operation is obtained, the accounting result can correctly guide an enterprise to master and know the carbon emission of the power equipment, the accounting result has higher reliability by combining the influence of the standard maintenance times and the additional maintenance times on the accounting result, and the enterprise can correctly take energy-saving and emission-reducing measures.
Description
Technical Field
The invention relates to the technical field of carbon emission calculation methods, in particular to a carbon footprint accounting method for power equipment.
Background
Carbon footprint, refers to the collection of greenhouse gas emissions caused by organizations, activities, products or individuals through transportation, food production and consumption, and various production processes. The power plant carbon footprint is the greenhouse gas emissions that the power plant causes when operating. Under the environment-friendly idea of practicing to reduce the carbon footprint, a plurality of enterprises are involved in the research of using the carbon footprint of the power equipment and obtain certain research results: the research results of the carbon footprint used by the electric power equipment show that the carbon emission in the use stage of the electric power equipment has great influence on the carbon emission of the product in the whole life cycle, and the use stage is a key stage for reducing the carbon footprint of the product; meanwhile, research results show that the influence of the use stage is not great, but the method is also a key field for implementing energy conservation and emission reduction.
However, the existing power equipment still has problems by using a carbon footprint accounting method: the existing carbon footprint accounting method for the power equipment is used to place the research focus on the power equipment only, and neglects the direct influence of standard maintenance and additional maintenance conditions, so that the carbon footprint accounting result of the power equipment has larger difference.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a carbon footprint accounting method for electric power equipment, and aims to solve the problems that the existing carbon footprint accounting method for electric power equipment is used to place the research focus on the electric power equipment only, and the direct influence of standard maintenance and additional maintenance conditions is ignored, so that the carbon footprint accounting result of the electric power equipment has larger difference, and the like.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a method for accounting carbon footprint of electric power equipment comprises the following steps:
step 1, setting a research target and a power equipment type;
step 2, determining a functional unit for carbon footprint accounting of the power equipment according to the category of the power equipment, specifically: the power equipment mainly comprises power generation equipment and power supply equipment, and single parts of the power equipment and the power equipment are used as functional units for evaluating the carbon footprint of the power equipment;
step 3, drawing a life cycle flow chart of the power generation equipment and the power supply equipment in a use stage;
and 4, determining a system boundary for carbon footprint accounting used by the power generation equipment and the power supply equipment through a life cycle flow chart, wherein the system boundary defines a product carbon footprint accounting range, comprises a time span and input and output and is divided into a time boundary and a space boundary, the time boundary comprises the time from the beginning of putting the power equipment into use to the end of stopping the power equipment from running, and the space boundary comprises the energy consumption and the input material consumption of running in each part of the power equipment in the using stage.
And 5, collecting required data according to the system boundary determined in the step 4, wherein the required data comprises activity data and emission coefficients, and the method comprises the following steps: obtaining activity data collected by the carbon footprint accounting of the power equipment from the system boundary in the step 4, wherein the activity data comprises energy consumption and input material consumption of the power equipment in one day of operation, and daily maintenance amount of the power equipment, the standard maintenance times refer to maintenance times which the power equipment must perform every day, relevant data are unified through a power equipment standardized maintenance manual and literature reference, and the additional maintenance times refer to maintenance times which the power equipment performs after being damaged every day;
and 6, substituting the collected data into an accounting formula of the carbon footprint used by the electric power equipment, and calculating to obtain the carbon emission of the electric power equipment in the use stage.
Further, the power generation equipment comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator and a transformer.
Further, the power supply equipment comprises power transmission lines with various voltage grades, a mutual inductor and a contactor.
Further, the emission coefficient is the amount of greenhouse gas emitted per unit activity data, and the emission coefficient required for the power equipment to use the carbon footprint accounting includes the emission coefficient of electricity and materials.
Further, the accounting formula of the carbon footprint used by the power equipment is as follows: w = Qx × u + Qe × u1 × n1+ Qf × u2 × n2
Wherein: qx is the energy consumption of the power equipment in one day;
u is the 1-degree electrical carbon emission coefficient for the power equipment;
qe is the consumption of the electric power equipment in standard maintenance in one day;
u1 is the discharge coefficient of standard maintenance materials;
n1 is the standard maintenance times per day;
qf is the consumption of additional maintenance of the power equipment in one day;
u2 is the discharge coefficient of the additional maintenance material;
n2 is the number of additional maintenance times per day.
The invention has the beneficial effects that:
according to the carbon footprint accounting method for the power equipment, the carbon emission of the power equipment in operation is obtained, and an accounting result can correctly guide an enterprise to master and know the carbon emission of the power equipment; the method is based on the existing carbon footprint accounting theory and method of the power equipment, and combines the influence of the standard maintenance times and the additional maintenance times on the accounting result, so that the accounting result has higher reliability and the enterprise can correctly take energy-saving and emission-reducing measures.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.
It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
A method for accounting carbon footprint of electric power equipment comprises the following steps:
step 1, setting a research target and a power equipment type;
step 2, determining a functional unit for carbon footprint accounting of the power equipment according to the category of the power equipment, specifically: the power equipment mainly comprises power generation equipment and power supply equipment, wherein the power generation equipment comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator, a transformer and the like, the power supply equipment comprises power transmission lines with various voltage grades, a mutual inductor, a contactor and the like, and for the two parts, a single piece is selected as a functional unit for evaluating the carbon footprint of the power equipment;
step 3, drawing a life cycle flow chart of the power generation equipment and the power supply equipment in a use stage;
and 4, determining a system boundary for carbon footprint accounting of the power generation equipment and the power supply equipment through the life cycle flow chart, wherein the system boundary specifies a product carbon footprint accounting range, comprises time span and input and output and is divided into a time boundary and a space boundary, the time boundary is from the beginning of putting the power equipment into use to the end of stopping the power equipment, and the space boundary comprises energy consumption and input material consumption of operation in each part of the power equipment in the use stage.
And 5, collecting required data according to the system boundary determined in the step 4, wherein the required data comprises activity data and emission coefficients, and the method comprises the following steps: obtaining activity data collected by the carbon footprint accounting of the power equipment from the system boundary in the step 4, wherein the activity data comprises energy consumption and input material consumption of the power equipment in one day of operation, and daily maintenance amount of the power equipment, the standard maintenance times refer to maintenance times which the power equipment must perform every day, relevant data are unified through a power equipment standardized maintenance manual and literature reference, and the additional maintenance times refer to maintenance times which the power equipment performs after being damaged every day;
and 6, substituting the collected data into an accounting formula of the carbon footprint used by the electric power equipment, and calculating to obtain the carbon emission of the electric power equipment in the use stage.
The accounting formula of the carbon footprint used by the power equipment is as follows: w = Qx × u + Qe × u1 × n1+ Qf × u2 × n2
Wherein: qx is the energy consumption of the power equipment in one day;
u is the 1-degree electrical carbon emission coefficient for the power equipment, and 0.785 is taken;
qe is the consumption of the electric power equipment in standard maintenance in one day;
u1 is the discharge coefficient of standard maintenance materials, and is taken as 0.85;
n1 is the standard maintenance times per day;
qf is the consumption of additional maintenance of the power equipment in one day;
u2 is the discharge coefficient of the additional maintenance materials, and 0.9 is taken;
n2 is the number of additional maintenance times per day.
The following examples take the accounting of the carbon footprint used by two pieces of power generation equipment and two pieces of electrical equipment of an enterprise as an example:
step 1, setting a research target to account the carbon footprint of the power generation equipment and the power utilization equipment in one day.
And 2, selecting a power station boiler and a generator for the power generation equipment, and selecting a mutual inductor and a contactor for the power utilization equipment, wherein the unit is 1.
And 3, drawing a periodic flow chart of the power generation equipment and the power supply equipment in one day, as shown in the figure 1.
And 4, determining the system boundary of the clothing product for carbon footprint accounting through the periodic flow chart of the power generation equipment and the power supply equipment in the use day drawn in the step 3.
And 5, determining the energy consumption, standard maintenance energy consumption emission coefficient, additional maintenance energy consumption and additional maintenance energy consumption emission coefficient of the power generation equipment and the power supply equipment in one day, wherein the next numerical value is the average value recorded in the last month. As shown in table 1:
step 6: substituting the collected data into an accounting formula of the carbon footprint used by the electric power equipment, and calculating the carbon emission of the electric power equipment in the use stage, as shown in table 2:
it can be seen from table 2 that the standard maintenance and the additional maintenance account for a large proportion of the total amount of carbon footprint used, and therefore, the power plant carbon footprint accounting method cannot focus on the power plant alone, ignoring the direct effects of the standard maintenance and the additional maintenance situations.
According to the carbon footprint accounting method for the electrical equipment, the carbon emission of the electrical equipment in operation is obtained, and an accounting result can correctly guide an enterprise to master and know the carbon emission of the electrical equipment; the method is based on the existing carbon footprint accounting theory and method of the power equipment, and combines the influence of the standard maintenance times and the additional maintenance times on the accounting result, so that the accounting result has higher reliability and the enterprise can correctly take energy-saving and emission-reducing measures.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A method for accounting carbon footprint of electric power equipment is characterized by comprising the following steps:
step 1, setting a research target and a power equipment type;
step 2, determining a functional unit for carbon footprint accounting of the power equipment according to the category of the power equipment, specifically: the power equipment mainly comprises power generation equipment and power supply equipment, and single parts of the power equipment and the power equipment are used as functional units for evaluating the carbon footprint of the power equipment;
step 3, drawing a life cycle flow chart of the power generation equipment and the power supply equipment in a use stage;
and 4, determining a system boundary for carbon footprint accounting of the power generation equipment and the power supply equipment through the life cycle flow chart, wherein the system boundary specifies a product carbon footprint accounting range, comprises time span and input and output and is divided into a time boundary and a space boundary, the time boundary is from the beginning of putting the power equipment into use to the end of stopping the power equipment, and the space boundary comprises energy consumption and input material consumption of operation in each part of the power equipment in the use stage.
And 5, collecting required data according to the system boundary determined in the step 4, wherein the required data comprises activity data and emission coefficients, and the method comprises the following steps: obtaining activity data collected by the carbon footprint accounting of the power equipment from the system boundary in the step 4, wherein the activity data comprises energy consumption and input material consumption of the power equipment in one day of operation, and daily maintenance amount of the power equipment, the standard maintenance times refer to maintenance times which the power equipment must perform every day, relevant data are unified through a power equipment standardized maintenance manual and literature reference, and the additional maintenance times refer to maintenance times which the power equipment performs after being damaged every day;
and 6, substituting the collected data into an accounting formula of the carbon footprint used by the electric power equipment, and calculating to obtain the carbon emission of the electric power equipment in the use stage.
2. The power equipment carbon footprint accounting method of claim 1, wherein: the power generation equipment comprises a power station boiler, a steam turbine, a gas turbine, a water turbine, a generator and a transformer.
3. The power equipment carbon footprint accounting method of claim 1, wherein: the power supply equipment comprises power transmission lines with various voltage grades, a mutual inductor and a contactor.
4. The power equipment carbon footprint accounting method of claim 1, wherein: the emission coefficient is the greenhouse gas emission amount of unit activity data, and the emission coefficient required by the electric power equipment to use carbon footprint accounting comprises the emission coefficient of electricity and materials.
5. The power equipment carbon footprint accounting method of claim 1, wherein: the accounting formula of the carbon footprint used by the power equipment is as follows: w = Qx × u + Qe × u1 × n1+ Qf × u2 × n2 wherein: qx is the energy consumption of the power equipment in one day;
u is the 1-degree electrical carbon emission coefficient for the power equipment;
qe is the material consumption of the standard maintenance of the power equipment in one day;
u1 is the discharge coefficient of standard maintenance materials;
n1 is the standard maintenance times per day;
qf is the material consumption of the power equipment for additional maintenance in one day;
u2 is the discharge coefficient of the additional maintenance material;
n2 is the number of additional maintenance times per day.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211482131.9A CN115908050A (en) | 2022-11-24 | 2022-11-24 | Power equipment carbon footprint accounting method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116664368A (en) * | 2023-06-27 | 2023-08-29 | 南方电网能源发展研究院有限责任公司 | Carbon footprint acquisition method, device, computer equipment and storage medium |
| CN117196389A (en) * | 2023-09-05 | 2023-12-08 | 南方电网能源发展研究院有限责任公司 | Carbon footprint accounting method applied to circuit breaker in power grid system |
| CN118607785A (en) * | 2024-06-20 | 2024-09-06 | 中国电力科学研究院有限公司 | Method and system for calculating carbon footprint of full life cycle product of power equipment |
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2022
- 2022-11-24 CN CN202211482131.9A patent/CN115908050A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116664368A (en) * | 2023-06-27 | 2023-08-29 | 南方电网能源发展研究院有限责任公司 | Carbon footprint acquisition method, device, computer equipment and storage medium |
| CN117196389A (en) * | 2023-09-05 | 2023-12-08 | 南方电网能源发展研究院有限责任公司 | Carbon footprint accounting method applied to circuit breaker in power grid system |
| CN117196389B (en) * | 2023-09-05 | 2024-07-23 | 南方电网能源发展研究院有限责任公司 | Carbon footprint accounting method applied to circuit breaker in power grid system |
| CN118607785A (en) * | 2024-06-20 | 2024-09-06 | 中国电力科学研究院有限公司 | Method and system for calculating carbon footprint of full life cycle product of power equipment |
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