CN114444950A - Greenhouse gas emission reduction amount calculation method, calculation device and readable storage medium - Google Patents
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Abstract
The invention provides a method for calculating greenhouse gas emission reduction, a calculating device and a readable storage medium. The calculation method comprises the following steps: acquiring a project boundary, a project area and a greenhouse gas boundary, and determining a preset calculation time period; calculating the discharge amount of the datum line and the discharge amount of the item according to the item boundary, the item area, the greenhouse gas boundary and the preset calculation time period; taking the difference between the reference line discharge amount and the project discharge amount as the reduction discharge amount in a preset calculation period, wherein the project boundary refers to a hydrogen fuel cell automobile and a hydrogen supply source in the project activity; the project area is a geographic boundary; greenhouse gases include carbon dioxide. By the technical scheme, accurate accounting on the emission reduction amount of the carbon dioxide can be realized.
Description
Technical Field
The invention relates to the technical field of energy conservation and emission reduction metering, in particular to a greenhouse gas emission reduction amount calculation method, a calculation device and a readable storage medium.
Background
As the third major greenhouse gas emission sector next to energy supply and industrial production, the transportation industry accounts for a significant proportion of the total carbon emission of all countries, wherein the emission of highway transportation accounts for about 70% of the total emission of transportation, and the emission of private cars accounts for 40% of the emission of highway transportation. Therefore, the popularization of energy-saving and emission-reduction measures in the fields of private cars and road transportation is very important for reducing the greenhouse gas emission in the whole transportation industry.
Compared with the industrial industries such as electric power industry, chemical industry and the like, the energy saving, emission reduction and peak-reaching routes of the transportation industry are more complex, and firstly, the transportation industry is closely related to the improvement of the living standard of people and the happiness of people, the holding quantity of private cars and the transportation service demand are increased year by year, and the transportation industry faces higher peak-reaching pressure; secondly, because the emission reduction space in the field of transportation is limited, the existing emission reduction technology in China has limited storage and application range and large emission reduction pressure; and thirdly, due to the influence of international policies such as international organization and European Union and unilateral rules, the industry peak-reaching situation and uncertainty factors under the global large background are relatively complex.
The hydrogen fuel cell automobile trip is a green low-carbon trip mode, the hydrogen energy is an important choice for realizing carbon neutralization instead of fossil energy, the hydrogen energy becomes an important energy for coping with climate change and building a decarburization society, and the hydrogen energy industry becomes an important component of energy strategic layout in China.
At present, fuel cell automobiles enter the initial stage of commercialization, and the quantity of fuel cell automobiles kept in China is 7352 by 2020. The hydrogen energy in 2050 is estimated to be at least 10% in the Chinese terminal energy system, 2458 million tons of hydrogen are used in the transportation field, the hydrogen energy accounts for about 19% of the energy consumption in the field, and the yield of the hydrogen fuel cell vehicle reaches 520 million per year. According to the international hydrogen energy commission, it is expected that by 2050, hydrogen will take up 18% of the global energy terminal demand, creating a market value in excess of $ 2.5 trillion, and fuel cell vehicles will occupy 20% -25% of global vehicles.
However, the calculation method for reducing the emission of the greenhouse gas in the field of hydrogen fuel cell automobile traveling at home and abroad is still a blank, and no specific quantification method for reducing the emission of the hydrogen fuel cell automobile traveling exists.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of the above, an object of the present invention is to provide a method for calculating greenhouse gas emission reduction.
It is another object of the invention to provide a computing device.
It is yet another object of the present invention to provide a readable storage medium.
In order to achieve the above object, a first aspect of the present invention provides a method for calculating a greenhouse gas emission reduction amount, which is used for a hydrogen fuel cell automobile trip project, and includes: acquiring a project boundary, a project area and a greenhouse gas boundary, and determining a preset calculation time period; calculating the discharge amount of the datum line and the discharge amount of the item according to the item boundary, the item area, the greenhouse gas boundary and the preset calculation time period; and taking the difference value between the reference line discharge amount and the project discharge amount as the reduction discharge amount in a preset calculation time period, namely:
ERy＝BEy-PEy (1)，
in the formula: ERy is the decrement displacement in the preset calculation period; BEy is the baseline discharge amount in the preset calculation time period; PEy shows the discharge amount of the project in the preset calculation period, wherein the project boundary refers to the hydrogen fuel cell vehicle and the hydrogen supply source in the project activity, the hydrogen supply source includes: a hydrogen preparation source, a storage source, a transportation source and a filling source; the project area is a geographic boundary, and at least comprises the sum of the following geographic area boundaries: a manufacturer of the hydrogen fuel cell vehicle, a retailer of the hydrogen fuel cell vehicle, an operator of the hydrogen fuel cell vehicle, and/or an owner of the hydrogen fuel cell vehicle; greenhouse gases include carbon dioxide.
The method for calculating the greenhouse gas emission reduction amount provided by the technical scheme of the first aspect of the invention can realize accurate accounting of the emission reduction amount of carbon dioxide, so that the method can reflect the emission reduction condition of the carbon dioxide in the links of hydrogen fuel cell automobile use, hydrogen fuel preparation, transportation, filling and the like, and provide quantitative basis for measuring the energy conservation and emission reduction condition of enterprises and society.
The technical scheme of the second aspect of the invention provides a calculating device for calculating the greenhouse gas emission reduction of a hydrogen fuel cell automobile trip project, which comprises the following steps: the processor executes the program to implement the method for calculating the greenhouse gas emission reduction volume according to the technical solution of the first aspect, so that the method has the technical effects of all the technical solutions of the first aspect, and is not described herein again.
An aspect of the third aspect of the present invention provides a readable storage medium, on which a program or instructions are stored, where the program or instructions are executed by a processor to implement the method for calculating a greenhouse gas emission reduction amount according to the first aspect, so as to achieve the technical effects of the first aspect, which are not described herein again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
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Fig. 1 is a flow chart of a greenhouse gas emission reduction calculation method according to an embodiment of the invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1.
The invention provides a method for calculating the emission reduction amount of greenhouse gases, which is used for a hydrogen fuel cell automobile trip project. The project is a travel project of a hydrogen fuel cell automobile of a certain hydrogen fuel cell automobile brand. In the project of this embodiment, this brand merchant is equipped with hydrogen energy system warehousing and transportation and vehicle operation integration intelligent management and control platform, gathers the intelligent management and control platform of integration through each application end sensor data collection, realizes tracing to the source and monitoring of hydrogen energy body to carry out the data monitoring of each scene of hydrogen energy through data analysis model, this company also provides the monitoring work of hydrogen fuel consumption and mileage for the project of this embodiment.
As shown in fig. 1, specifically, the method for calculating the greenhouse gas emission reduction amount in the present embodiment includes:
step S100: acquiring a project boundary, a project area and a greenhouse gas boundary, and determining a preset calculation time period in years;
step S102: calculating the discharge amount of a reference line and the discharge amount of items in a preset calculation time period according to the item boundary, the item area and the greenhouse gas boundary;
step S104: and taking the difference value between the reference line discharge amount and the project discharge amount as the reduction discharge amount in a preset calculation time period, namely:
ERy＝BEy-PEy (1)，
in the formula: ERy is volume reduction in year y; BEy is the baseline emission in year y; PEy is the project emissions in year y. That is, the preset calculation period in the present embodiment is one natural year.
Wherein, the project boundary refers to the hydrogen fuel cell automobile and the hydrogen supply source in the project activity, and the hydrogen supply source includes: hydrogen preparation source, storage source, transportation source, filling source. In the present embodiment, the types of the hydrogen fuel cell automobile include a medium or large passenger car, a light, medium or heavy truck, a special vehicle, and a special vehicle. In the present embodiment, 50 hydrogen fuel cell logistics vehicles and 50 hydrogen fuel cell passenger vehicles were used as the operating vehicles to calculate the displacement reduction amount.
The project area is a geographic boundary and at least comprises the sum of the following geographic area boundaries: a manufacturer of the hydrogen fuel cell vehicle, a retailer of the hydrogen fuel cell vehicle, an operator of the hydrogen fuel cell vehicle, and/or an owner of the hydrogen fuel cell vehicle. In the present embodiment, the project area is nationwide.
Greenhouse gases include carbon dioxide.
Further, the reference line scene of the travel item in this embodiment is: the evaluation specification stipulates that "project discharge and baseline discharge should be compared between the same vehicle types", since the project vehicles are 12 meters long hydrogen fuel cell passenger cars (50 cars) and hydrogen fuel cell logistics cars (50 cars) with a total mass of 12050kg, the baseline vehicles are "the operation of 50 fuel passenger cars of the same tonnage and 50 fuel logistics cars of the same tonnage", and the baseline vehicle fuel is diesel.
Specifically, the project scenario is: 50 hydrogen fuel cell logistics vehicles and 50 hydrogen fuel cell passenger vehicles. The introduced hydrogen fuel cell bus is a brand A FSQ6121FCEVG3 fuel cell city bus, and the introduced hydrogen fuel cell logistics vehicle is a brand A FSQ5120XXYEFCEV fuel cell logistics vehicle, and the specific technical parameters are shown in the following table:
TABLE 1A Brand FSQ6121FCEVG3 Hydrogen Fuel cell City bus technical parameters
TABLE 2A Brand FSQ5120XXYEFCEV Fuel cell stream vehicle technical parameters
Greenhouse gas emission sources and whether greenhouse gases are included within project boundaries are shown in the following table:
TABLE 3 greenhouse gas boundary Table
As can be seen from the above table, the greenhouse gas of this example includes only carbon dioxide.
According to the above, the reduced displacement is calculated by first calculating the reference discharge amount as the reduced number according to the following formula:
BEy＝∑iEFBL,km,i×DDi,y×Ni,y×10-6 (4)，
wherein: BEyBaseline emission in the y year; EFBL,km,iA carbon dioxide emission factor for baseline vehicle type i; DD (DD) with high heat dissipating capacityi,yIn the present embodiment, the vehicle type i includes a fuel distribution vehicle and a fuel passenger vehicle for the annual travel distance or the annual workload of the project vehicle type i in the y-th year. N is a radical ofi,yIn order to count the number of the project vehicle types i operated in the y-th year, the number of the fuel distribution vehicles and the number of the fuel passenger vehicles in the embodiment are respectively 50.
Further, the carbon dioxide emission factor EF of the baseline vehicle type iBL,km,iIs performed according to the following formula:
EFBL,km,i＝SFCi×NCVBL,i×EFBL,i×IRt (5)，
wherein: SFC (Small form-factor pluggable) deviceiFossil fuel consumption rate for baseline vehicle type i; NCVBL,iNet heating value of fossil fuel of baseline vehicle type i; EFBL,iA carbon dioxide emissions factor per heating value for a baseline vehicle type i fossil fuel; IR is a technical improvement factor of a baseline vehicle, and the default value of the technical improvement factor is 0.99/year; t is the years of technical improvement (life data depending on each vehicle type).
After the calculation of the reference discharge amount is completed, the project discharge amount is further calculated as follows:
in the project area, obtaining the vehicle type belonging to the project boundary, the operation quantity of the vehicle type, the hydrogen fuel consumption rate of the vehicle type, the total travel distance or the total workload of the vehicle type in the y year, and the carbon dioxide emission factor of the hydrogen supply source, and calculating the project emission quantity according to the following formula:
PEy＝∑iDDi,y×Ni,y×SFCi,H2×EFh2 supply×10-3 (2)，
In the formula: PE (polyethylene)yThe discharge amount of the item in the y year; DD (DD) with high heat dissipating capacityi,yThe total travel distance or the total work volume of the project vehicle type i in the y-th year; n is a radical ofi,yThe number of vehicles of type i in the y year; SFC (Small form-factor pluggable) devicei,H2Hydrogen specific fuel consumption for vehicle type i; EFH2 supplyCarbon dioxide emission factor of the hydrogen supply source.
Wherein, the carbon dioxide emission factor of the hydrogen supply source is calculated as follows:
EFh2 supply＝EFH2 hydrogen production×(1+FEscape during storage and transportation) (3)，
In the formula, EFH2 hydrogen productionThe carbon dioxide emission factor is obtained through actual measurement or through a recommended value in the hydrogen preparation link.
FEscape during storage and transportationThe escape discharge proportion is generated in the links of hydrogen storage, transportation and filling.
Thus, by calculating the baseline emission amount and the project emission amount, the difference between the baseline emission amount and the project emission amount can be calculated, and the emission reduction amount of the greenhouse gas in the y-th year can be obtained.
Further, the parameters in each calculation formula are selected and calculated, referring to the following table:
table 4: parameter selection
As shown in Table 4 above, in the present embodiment, the fossil fuel consumption rate SFC of the vehicle type iiBy acquiring according to the manufacturer's specifications or official agency data, that is, using government document limits, i.e., official agency data.
Table 5:
table 6:
table 7:
table 8: (in this table, the lower subscript of each chemical formula is "oxygen production")
Table 9: (the subscripts of the lower right corner of the data/parameters in the table are all Chinese characters 'storage and transportation escape')
In summary, the calculation results are shown in the following table 10:
as can be seen from the above table 10, the reduced volume of the greenhouse gas in the project of the present embodiment can be accurately calculated, so that the quantitative accounting of the reduced volume of the hydrogen fuel cell vehicle during traveling is realized.
In the above embodiment, the carbon dioxide emission factor of the hydrogen production process is obtained from the recommended value,
in the above embodiment, the slip discharge ratio FEscape during storage and transportationAnd adopting a preset recommended value.
An embodiment of a second aspect of the present invention provides a calculation apparatus for calculating a greenhouse gas emission reduction amount for a hydrogen fuel cell automobile trip project, including: the computing method according to any of the first aspect of the present invention includes a memory and a processor, where the memory stores a program or instructions that can be executed on the processor, and the processor implements the steps of the computing method according to any of the above embodiments when executing the program, so that all technical effects of the above embodiments are achieved, and details are not described herein.
An embodiment of the third aspect of the present invention provides a readable storage medium, on which a program or an instruction is stored, where the program or the instruction, when executed by a processor, implements the steps of the computing method according to any one of the embodiments of the first aspect, so as to achieve all the technical effects of the embodiments described above, and therefore, the description is omitted here.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A greenhouse gas emission reduction calculation method is used for a hydrogen fuel cell automobile trip project, and is characterized by comprising the following steps:
acquiring a project boundary, a project area and a greenhouse gas boundary, and determining a preset calculation time period;
calculating the discharge amount of the datum line and the discharge amount of the item according to the item boundary, the item area, the greenhouse gas boundary and the preset calculation time period;
taking the difference value between the reference line discharge amount and the project discharge amount as the reduction discharge amount in the preset calculation period, namely:
ERy＝BEy-PEy (1)，
in the formula:
ERy is the reduced displacement in the preset calculation period;
BEy is the baseline discharge capacity in the preset calculation time period;
PEy is the discharge amount of the item in the preset calculation period,
wherein the project boundary refers to a hydrogen fuel cell vehicle and a hydrogen supply source in the project activity, the hydrogen supply source comprising: a hydrogen preparation source, a storage source, a transportation source and a filling source;
the project area is a geographical boundary and at least comprises the sum of the following geographical area boundaries: a manufacturer of the hydrogen fuel cell vehicle, a retailer of the hydrogen fuel cell vehicle, an operator of the hydrogen fuel cell vehicle, and/or an owner of the hydrogen fuel cell vehicle;
the greenhouse gas comprises carbon dioxide.
2. The greenhouse gas emission reduction amount calculation method according to claim 1, which is used for a hydrogen fuel cell automobile trip item, wherein the determining of the reference line emission amount and the item emission amount according to the item boundary, the item area, the greenhouse gas boundary and the preset calculation period specifically comprises:
acquiring the vehicle type belonging to the project boundary, the operation quantity of the vehicle type, the hydrogen fuel consumption rate of the vehicle type, the total travel distance or the total workload of the vehicle type in the preset calculation period, and the carbon dioxide emission factor of a hydrogen supply source in the project area, and calculating the project emission according to the following formula:
PEy＝∑iDDi,y×Ni,y×SFCi,H2×EFh2 supply×10-3 (2)，
In the formula: PE (polyethylene)yThe discharge amount of the items in the preset calculation time period is calculated;
DDi,ythe total travel distance or the total workload of the project vehicle type i in the preset calculation time period;
Ni,ycalculating the operation number of the vehicle types i in the preset calculation time period;
SFCi,H2a hydrogen specific fuel consumption for the vehicle type i;
EFh2 supplyA carbon dioxide emission factor of the hydrogen supply source.
3. The greenhouse gas emission reduction calculation method according to claim 2, which is used for a hydrogen fuel cell automobile trip project,
the carbon dioxide emission factor of the hydrogen supply source is determined according to the carbon dioxide emission factor of the hydrogen preparation link and the escape emission proportion generated in the hydrogen storage, transportation and filling links, and the escape emission proportion is as follows:
EFh2 supply＝EFH2 hydrogen production×(1+FEscape during storage and transportation) (3)，
In the formula, EFH2 hydrogen productionThe carbon dioxide emission factor is obtained through actual measurement or through a recommended value in the hydrogen preparation link.
FEscape during storage and transportationThe escape discharge proportion is generated in the links of hydrogen storage, transportation and filling.
4. The greenhouse gas emission reduction calculation method according to claim 3, which is used for a hydrogen fuel cell automobile trip project,
the carbon dioxide emission factor of the hydrogen preparation link is obtained through a recommended value, and the method specifically comprises the following steps:
acquiring a hydrogen source of a hydrogen station of the hydrogen fuel cell automobile;
judging whether the hydrogen sources come from the same hydrogen production mode or not;
if so, adopting a recommended value of a carbon dioxide emission factor corresponding to the hydrogen production mode;
if the hydrogen sources are different, calculating weighted average values of carbon dioxide emission factors respectively corresponding to the different hydrogen sources by adopting a weighted average method based on the supply proportions of the different hydrogen sources, and taking the weighted average values as recommended values of the carbon dioxide emission factors;
and if the hydrogen source cannot be judged or the proportion of different hydrogen sources cannot be judged, calculating the weighted average value by adopting the hydrogen source structural proportion with national statistical caliber.
5. The greenhouse gas emission reduction calculation method according to claim 4, which is used for a hydrogen fuel cell automobile trip project,
the escape emission proportion is obtained through field actual measurement, monitoring is carried out according to a preset period, and a weighted average value is adopted in the preset calculation time period; or
A preset recommended value of the escape emission proportion is adopted.
6. The greenhouse gas emission reduction calculation method according to claim 5, which is used for a hydrogen fuel cell automobile trip project,
determining the discharge amount of the reference line and the discharge amount of the item according to the item boundary, the item area, the greenhouse gas boundary and the preset calculation time period, and specifically comprising the following steps:
in the project area, acquiring vehicle types belonging to the project boundary, the operation number of the vehicle types, carbon dioxide emission factors of reference line vehicle types, and total travel distance or total workload of the vehicle types in the preset calculation time period, and calculating the reference line emission according to the following formula:
BEy＝∑iEFBL,km,i×DDi,y×Ni,y×10-6 (4)，
wherein:
BEythe discharge amount of the reference line in the preset calculation time period is obtained;
EFBL,km,ia carbon dioxide emission factor for baseline vehicle type i;
DDi,ythe total travel distance or the total workload of the project vehicle type i in the preset calculation time period;
Ni,ythe operation number of the project vehicle type i in the preset calculation time period is obtained;
i is a vehicle type, the vehicle type comprising: cars, passenger cars, tractors, dump trucks, logistics vehicles.
7. The greenhouse gas emission reduction calculation method according to claim 6, which is used for a hydrogen fuel cell automobile trip project,
carbon dioxide emission factor EF of the baseline vehicle type iBL,km,iIs performed according to the following formula:
EFBL,km,i＝SFCi×NCVBL,i×EFBL,i×IRt (5)，
wherein:
SFCifossil fuel consumption rate for baseline vehicle type i;
NCVBL,inet heating value of fossil fuel of baseline vehicle type i;
EFBL,ia carbon dioxide emissions factor per heating value for a baseline vehicle type i fossil fuel;
IR is a technical improvement factor of a baseline vehicle, and the default value of the technical improvement factor is 0.99/year;
t is the years of technical improvement.
8. The greenhouse gas emission reduction calculation method according to claim 7, which is used for a hydrogen fuel cell automobile trip project,
fossil fuel consumption rate SFC of the vehicle type iiObtained by a sample measurement method comprising:
investigating the brand of fossil fuel vehicles belonging to the same vehicle type as the project vehicle and the application ratio thereof in all public/private transportation in the project area;
selecting a representative sample vehicle for each of the fossil fuel vehicle brands, respectively, and determining the sample vehicle in a randomly selected manner based on a plurality of factors, including: fuel type used, vehicle type, year of engine model, rated power, passenger/load carrying capacity, auxiliary equipment;
under the preset working condition, carrying out road surface actual measurement of fossil fuel consumption rate, wherein the preset working condition comprises the following conditions: highway, standard operation mode, preset weather;
randomly sampling according to general regulations of small-scale voluntary emission reduction project activity sampling and investigation, determining the sample size by adopting a 90% confidence interval and a +/-10% error, and using the lower limit of a 95% confidence interval for the fossil fuel consumption rate;
according to the sampling result, the fossil fuel consumption rate and the application ratio of different vehicle brands are addedRight-average obtaining a fossil fuel consumption rate SFC of a reference-line vehicle corresponding to the project vehicle typei。
9. Method for calculating greenhouse gas emission reduction amount according to claim 7, wherein the method is used for a hydrogen fuel cell automobile travel project, and is characterized in that the fossil fuel consumption rate SFC of the vehicle type iiThe method comprises the following steps of obtaining data according to a manufacturer specification or an official agency, wherein the data obtained according to the manufacturer specification specifically comprises the following steps:
investigating the brand of fossil fuel vehicles and their proportion of use of the same vehicle type as the project vehicle in all public/private transportation in the project area;
for each vehicle brand, obtaining a corresponding fuel consumption rate through a manufacturer specification corresponding to the vehicle brand;
and carrying out weighted average according to the fuel consumption rate and the corresponding application proportion to obtain the fossil fuel consumption rate of the vehicle type.
10. A calculation device for calculating a reduction amount of greenhouse gases in a hydrogen fuel cell automobile travel project, comprising:
a memory and a processor, wherein the memory has stored thereon a program or instructions executable on the processor, which when executed by the processor, implements the method of calculating a reduced amount of greenhouse gas as claimed in any one of claims 1 to 9.
11. A readable storage medium on which a program or instructions are stored, which when executed by a processor implements a method of calculating greenhouse gas emission reduction as claimed in any one of claims 1 to 9.
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