Method, system and device for evaluating voluntary emission reduction data of ground source heat pump air conditioning system

Abstract

The present invention discloses a method, system and device for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system, and relates to the field of energy conservation technology. The method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system comprises the following steps: determining a carbon emission baseline when the target ground source heat pump air conditioning system does not voluntarily implement an emission reduction plan; determining the actual carbon emissions of the target ground source heat pump air conditioning system after the voluntary implementation of the emission reduction plan, and determining the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; evaluating the implementation cost of the emission reduction plan, and evaluating the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction, which solves the problem that the prior art is inconvenient to comprehensively evaluate the emission reduction effect and economic benefits of the ground source heat pump air conditioning system by quantifying and comparing carbon emission data under different circumstances, and combining cost analysis.

Description

Technical Field

[0001] The present invention relates to the field of energy-saving technology, and in particular to a method, system and device for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system. Background Art

[0002] With the advent of the 21st century, my country's construction industry continues to develop, and the requirements for building energy conservation are getting higher and higher. Reducing the air pollution caused by winter heating in my country, reducing the energy consumption of heating and air-conditioning systems, and saving energy are the focus of the relevant industries. There are many buildings and equipment in the area, and the energy consumption is high, which is a major work area for energy conservation and emission reduction in water transportation. The location and layout of the port area are relatively unique, with excellent conditions for direct solar radiation and storage of ground source thermal energy, and abundant groundwater systems, which are conducive to the exchange of heat and cold in the ground source heat pump system. The use of clean energy such as solar energy and geothermal energy has good application prospects. The application of new renewable and clean energy solves the problem of high energy consumption and high pollution of traditional heating and cooling systems.

[0003] The Chinese invention patent with announcement number CN114548805B discloses an application effect evaluation model of a solar energy and ground source heat pump composite system in energy conservation and emission reduction in a typical port area, including the following steps: Step 1: Collect economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers; Step 2: Based on economic data, energy consumption data and environmental benefit data, calculate the economic indicators, energy conservation indicators and environmental protection indicators of different manufacturers respectively; Step 3: Based on economic indicators, energy conservation indicators and environmental protection indicators, calculate the investment energy conservation rate and investment emission reduction rate, and further calculate the comprehensive energy conservation and emission reduction evaluation index; Step 4: According to the comprehensive energy conservation and emission reduction evaluation index value, evaluate the comprehensive energy conservation and emission reduction effect of solar energy and ground source heat pump composite systems of different manufacturers in energy conservation and emission reduction. The present invention provides an application effect evaluation model of a solar energy and ground source heat pump composite system in energy conservation and emission reduction in a typical port area, which integrates economic, energy conservation and emission reduction benefits, and is comprehensive and objective.

[0004] However, existing technologies have the problem of being inconvenient to comprehensively evaluate the emission reduction effect and economic benefits of ground source heat pump air conditioning systems by quantifying and comparing carbon emission data under different situations and combining cost analysis. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a method, system and device for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system, which solves the problem that the prior art is not convenient for comprehensively evaluating the emission reduction effect and economic benefits of a ground source heat pump air conditioning system by quantifying and comparing carbon emission data under different situations and combining cost analysis.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method for evaluating voluntary emission reduction data for a ground source heat pump air conditioning system, comprising the following steps: determining a carbon emission baseline for a target ground source heat pump air conditioning system when the emission reduction plan is not voluntarily implemented; determining the actual carbon emissions of the target ground source heat pump air conditioning system after the voluntary implementation of the emission reduction plan, and determining the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; evaluating the implementation cost of the emission reduction plan, and evaluating the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction.

[0007] Furthermore, the process of determining the carbon emission baseline of the geothermal heat pump air-conditioning system when the emission reduction plan is not voluntarily implemented is as follows: obtain the historical energy consumption data of the target geothermal heat pump air-conditioning system and the historical environmental data of the target geothermal heat pump air-conditioning system; process the historical energy consumption data to obtain energy consumption baseline data, wherein the energy consumption baseline data includes the seasonal historical electricity consumption base and the seasonal historical natural gas consumption base; process the historical environmental data to obtain environmental baseline data, wherein the environmental baseline data includes the seasonal historical average temperature base and the seasonal historical average energy efficiency ratio of the geothermal heat pump air-conditioning system; determine the carbon emission baseline based on the energy consumption baseline data and the environmental baseline data.

[0008] Furthermore, the function formula of the carbon emission baseline is as follows:

[0009]

[0010] In the formula, C p is a function of the carbon emissions baseline, E e is the seasonal historical electricity consumption base, C e is the carbon emission factor of electricity, F g is the proportion of renewable energy, E g is the seasonal historical natural gas consumption base, C g is the carbon emission factor of natural gas, η AC is the seasonal historical average energy efficiency ratio of the ground source heat pump air conditioning system, β is the temperature adjustment coefficient, T is the seasonal historical average temperature base, T ref is the reference temperature.

[0011] Furthermore, the process of processing the historical energy consumption data to obtain the energy consumption baseline data is as follows: the historical energy consumption data is parsed to obtain the monthly historical electricity consumption data of each year, and the monthly historical electricity consumption data of each year is averaged to obtain the seasonal historical electricity consumption base; the historical energy consumption data is parsed to obtain the monthly historical natural gas consumption data of each year, and the monthly historical natural gas consumption data of each year is averaged to obtain the seasonal historical natural gas consumption base.

[0012] Furthermore, the process of processing the historical environmental data to obtain the environmental baseline data is as follows: the historical environmental data is parsed to obtain the monthly historical environmental temperatures of each year, and the historical environmental temperatures of each year are averaged to obtain the seasonal historical average temperature base; the annual average efficiency of the target ground source heat pump air-conditioning system is evaluated based on the historical environmental data of the target ground source heat pump air-conditioning system.

[0013] Furthermore, the emission reduction scheme includes an emission reduction scheme for improving energy efficiency, an emission reduction scheme for increasing the proportion of renewable energy use, and an emission reduction scheme for updating high-efficiency equipment. The process of determining the actual carbon emissions of the target ground source heat pump air-conditioning system after the voluntary implementation of the emission reduction scheme is as follows: for the emission reduction scheme for improving energy efficiency, obtain the percentage of improvement in energy efficiency; for the emission reduction scheme for increasing the proportion of renewable energy use, obtain the percentage of increase in the proportion of renewable energy in total energy consumption; for the emission reduction scheme for updating high-efficiency equipment, obtain the percentage of reduction in electricity consumption; based on the actual carbon emissions calculation model, the percentage of improvement in energy efficiency, the percentage of increase in the proportion of renewable energy in total energy consumption, and the percentage of reduction in electricity consumption are processed respectively to obtain the actual carbon emissions of the emission reduction scheme for improving energy efficiency, the actual carbon emissions of the emission reduction scheme for increasing the proportion of renewable energy use, and the actual carbon emissions of the emission reduction scheme for updating high-efficiency equipment.

[0014] Furthermore, the implementation cost of the emission reduction plan is evaluated, and the process of evaluating the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction is as follows: obtain the cost data of the emission reduction plan, the cost data includes the initial investment cost, the maintenance cost in the tth year, the energy saving benefit in the tth year, and the discount rate, t being the year number of the expected life of the emission reduction plan; when the cost data of the emission reduction plan are fused, the implementation cost within the expected life of the emission reduction plan is obtained; obtain the carbon emission reduction within the expected life of the emission reduction plan after the implementation of the emission reduction plan; and obtain the benefit-cost ratio based on the implementation cost and the carbon emission reduction.

[0015] Furthermore, the calculation format of the benefit-cost ratio is as follows:

[0016]

[0017] Where BCR is the benefit-cost ratio, TRe is the carbon emission reduction, and TCo is the implementation cost.

[0018] A voluntary emission reduction data assessment system for a geothermal heat pump air-conditioning system, used for the above-mentioned voluntary emission reduction data assessment method for a geothermal heat pump air-conditioning system, comprises a carbon emission baseline determination subsystem, a carbon emission reduction determination subsystem and a benefit-cost ratio determination subsystem, wherein: the carbon emission baseline determination subsystem is used to determine the carbon emission baseline of the target geothermal heat pump air-conditioning system when the emission reduction plan is not voluntarily implemented; the carbon emission reduction determination subsystem is used to determine the actual carbon emissions of the target geothermal heat pump air-conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; the benefit-cost ratio determination subsystem is used to evaluate the implementation cost of the emission reduction plan, and evaluate the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction.

[0019] A voluntary emission reduction data assessment device for a geothermal heat pump air-conditioning system comprises a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the voluntary emission reduction data assessment method for a geothermal heat pump air-conditioning system as described above, and further comprises a carbon emission baseline determination module, a carbon emission reduction determination module and a benefit-cost ratio determination module, wherein: the carbon emission baseline determination module is used to determine the carbon emission baseline of the target geothermal heat pump air-conditioning system when the emission reduction plan is not voluntarily implemented; the carbon emission reduction determination module is used to determine the actual carbon emissions of the target geothermal heat pump air-conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; the benefit-cost ratio determination module is used to evaluate the implementation cost of the emission reduction plan, and evaluate the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction.

[0020] The present invention has the following beneficial effects:

[0021] The voluntary emission reduction data assessment method for ground source heat pump air conditioning system determines the carbon emission baseline of the target ground source heat pump air conditioning system when the emission reduction plan is not implemented, providing a reference point for subsequent assessments so that the actual emission reduction effect can be quantified. By comparing the actual carbon emissions after the implementation of the voluntary emission reduction plan with the baseline data, the actual carbon emission reduction can be determined, so that the actual effect of the emission reduction plan can be clearly understood. The implementation cost of the emission reduction plan is evaluated, and combined with the achieved carbon emission reduction, the benefit-cost ratio is calculated to help decision makers fully understand the economic benefits of the emission reduction plan, so as to better weigh the relationship between investment and benefits.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a flow chart of the voluntary emission reduction data evaluation method for the ground source heat pump air conditioning system of the present invention.

[0024] Figure 2 This is a schematic diagram of quarterly emissions of the carbon emission baseline of the voluntary emission reduction data assessment method for the ground source heat pump air conditioning system of the present invention.

[0025] Figure 3 This is a flowchart of the voluntary emission reduction data evaluation system for the ground source heat pump air conditioning system of the present invention.

[0026] Figure 4 This is a structural connection diagram of the voluntary emission reduction data evaluation device for the ground source heat pump air conditioning system of the present invention. DETAILED DESCRIPTION

[0027] The embodiments of the present application use a voluntary emission reduction data assessment method, system and device for a ground source heat pump air conditioning system to achieve a comprehensive assessment of the emission reduction effect and economic benefits of a ground source heat pump air conditioning system by quantifying and comparing carbon emission data under different circumstances and combining cost analysis.

[0028] The overall idea of ​​the problem in the embodiment of this application is as follows:

[0029] First, calculate the carbon emissions of the target ground source heat pump air conditioning system before the emission reduction plan is implemented. This baseline data provides a reference point for measuring the effectiveness of the emission reduction plan. After the voluntary emission reduction plan is implemented, measure and calculate the actual carbon emissions of the target ground source heat pump air conditioning system. By comparing the carbon emissions before and after implementation, determine the actual carbon emission reduction, calculate the total cost of implementing the emission reduction plan, and evaluate the economic benefits of the plan based on the implementation cost of the emission reduction plan and the achieved carbon emission reduction, that is, the benefit-cost ratio. This analysis helps to judge the economic rationality and feasibility of the emission reduction plan. By quantifying and comparing carbon emission data under different circumstances, combined with cost analysis, comprehensively evaluate the emission reduction effect and economic benefits of the ground source heat pump air conditioning system, and provide a scientific basis for decision-making.

[0030] See also Figure 1 The embodiment of the present invention provides a technical solution: a method for evaluating voluntary emission reduction data of a geothermal heat pump air-conditioning system, comprising the following steps: determining a carbon emission baseline of a target geothermal heat pump air-conditioning system when the emission reduction plan is not voluntarily implemented; determining the actual carbon emissions of the target geothermal heat pump air-conditioning system after the voluntary implementation of the emission reduction plan, and determining the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; evaluating the implementation cost of the emission reduction plan, and evaluating the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction.

[0031] Specifically, the process of determining the carbon emission baseline of the ground source heat pump air conditioning system when the emission reduction plan is not voluntarily implemented is as follows: obtain the historical energy consumption data of the target ground source heat pump air conditioning system and the historical environmental data of the target ground source heat pump air conditioning system, and the historical energy consumption data and the historical environmental data are obtained from the historical database; process the historical energy consumption data to obtain energy consumption baseline data, and the energy consumption baseline data includes the seasonal historical electricity consumption base and the seasonal historical natural gas consumption base; process the historical environmental data to obtain environmental baseline data, and the environmental baseline data includes the seasonal historical average temperature base and the seasonal historical average energy efficiency ratio of the ground source heat pump air conditioning system; determine the carbon emission baseline based on the energy consumption baseline data and the environmental baseline data.

[0032] The historical energy consumption data of the target ground source heat pump air conditioning system includes electricity consumption and natural gas consumption, reflecting the energy consumption in different seasons. The historical environmental data of the target ground source heat pump air conditioning system includes the historical average temperature and the average energy efficiency ratio of the ground source heat pump air conditioning system, which reflects the environmental conditions of the system in different seasons.

[0033] By processing historical energy consumption data, we can obtain seasonal historical electricity consumption bases and natural gas consumption bases, which reflect the typical energy consumption levels of the system in different seasons under normal operation. By processing historical environmental data, we can obtain seasonal historical average temperature bases and the average energy efficiency ratio of the ground source heat pump air conditioning system, which reflect the operating performance of the system under normal environmental conditions.

[0034] In addition to obtaining the carbon emission baseline through the actual measurement method, simulation method and standard value method, it can also be determined through the following function formula. The function formula of the carbon emission baseline is as follows:

[0035]

[0036] In the formula, C p is a function of the carbon emissions baseline, E e is the seasonal historical electricity consumption base, C e The carbon emission factor for electricity refers to the carbon emission factor for electricity published by the power sector of a country or region. It is usually expressed in kg CO2 / kWh. The carbon emission factor for electricity reflects the amount of carbon dioxide emissions generated for every kilowatt-hour (kWh) of electricity consumed. Due to different energy structures in different countries or regions, carbon emission factors also vary. They are determined by the type of fuel used in the electricity production process and the amount of CO2 emissions generated by its combustion process. g The renewable energy share reflects the proportion of electricity from renewable energy in the total electricity consumption. g is the seasonal historical natural gas consumption base, C gis the carbon emission factor of natural gas, which refers to the carbon emission factor of natural gas published by the natural gas department of a country or region, usually expressed in kg CO2 / m 3 The carbon emission factor of natural gas reflects the carbon emission of each cubic meter (m 3 ) The amount of carbon dioxide emissions from natural gas is determined by the chemical composition of natural gas and the amount of CO2 emissions from its combustion process, η AC is the seasonal historical average energy efficiency ratio of the ground source heat pump air conditioning system, β is the temperature adjustment coefficient, and the influence coefficient of temperature change on energy efficiency is determined based on empirical values ​​or through regression analysis, that is, the temperature adjustment coefficient is determined, T is the seasonal historical average temperature base, T ref is the reference temperature, determined by the median of historical temperatures.

[0037] In this implementation, the formula comprehensively considers multiple factors such as electricity consumption, natural gas consumption, system energy efficiency, temperature changes, etc., making the calculation of the carbon emission baseline more comprehensive and accurate. By introducing the temperature adjustment coefficient and reference temperature, the carbon emission baseline under different seasons and climate conditions can be flexibly adjusted. The proportion of renewable energy is taken into account, which can more accurately reflect the actual carbon emissions, especially when using renewable energy.

[0038] The following is a table showing the carbon emissions baseline for each quarter:

[0039] Table 1 Carbon emissions baseline data in each quarter

[0040]

[0041]

[0042] The table lists the historical energy consumption data (electricity consumption and natural gas consumption) of different seasons, related carbon emission factors, the average energy efficiency ratio of the system, the temperature adjustment coefficient, the historical average temperature base and the reference temperature, and calculates the carbon emission baseline for each season. It can be seen that there are differences in energy consumption data and environmental data in different seasons, resulting in different carbon emission baselines. The carbon emission baseline in spring is 8190kg CO2. Due to the moderate temperature, the energy consumption of the air-conditioning system is relatively low, so the carbon emissions are also low. The carbon emission baseline in summer is the highest, at 14410kg CO2. This is because the temperature is high in summer, and the frequency and intensity of use of the air-conditioning system increase, resulting in increased energy consumption and carbon emissions. The carbon emission baseline in autumn is the lowest, at 7230kg CO2. The temperature in autumn is moderate, and the air-conditioning system is used less, so the energy consumption and carbon emissions are the lowest. The carbon emission baseline in winter is 11700kg CO2. Although the temperature is low in winter, the energy consumption of the air-conditioning system increases due to the need for heating, resulting in higher carbon emissions.

[0043] Figure 2 The carbon emission baselines for each season are shown in the image. The carbon emission baselines for each season can be compared intuitively through the bar chart. It can be seen that the carbon emission baseline in summer is the highest and the carbon emission baseline in autumn is the lowest. This reflects that in summer, due to the high temperature, the air conditioning system consumes more energy, resulting in higher carbon emissions; while in autumn, the temperature is moderate, the energy consumption is lower, and the carbon emissions are relatively less.

[0044] Specifically, the process of processing historical energy consumption data to obtain energy consumption baseline data is as follows: the historical energy consumption data is parsed to obtain the monthly historical electricity consumption data of each year, and the monthly historical electricity consumption data of each year is averaged to obtain the seasonal historical electricity consumption base; the historical energy consumption data is parsed to obtain the monthly historical natural gas consumption data of each year, and the monthly historical natural gas consumption data of each year is averaged to obtain the seasonal historical natural gas consumption base.

[0045] Extract the monthly historical electricity consumption data and monthly historical natural gas consumption data of each year from the historical energy consumption records. Perform mean processing on the monthly historical electricity consumption data of each year to calculate the base of electricity consumption in each season. For example, the base of electricity consumption in spring is the average of the monthly historical electricity consumption data of March, April and May. Perform mean processing on the monthly historical natural gas consumption data of each year to calculate the base of natural gas consumption in each season. For example, the base of natural gas consumption in winter is the average of the monthly historical natural gas consumption data of December, January and February.

[0046] The process of processing historical environmental data to obtain environmental baseline data is as follows: the historical environmental data is parsed to obtain the monthly historical environmental temperatures of each year, and the historical environmental temperatures of each year are averaged to obtain the seasonal historical average temperature base; the annual average efficiency of the target ground source heat pump air-conditioning system is evaluated based on the historical environmental data of the target ground source heat pump air-conditioning system.

[0047] Extract the monthly historical ambient temperature data of each year from the historical environmental records, perform mean processing on the monthly historical ambient temperature data of each year, and calculate the average temperature base of each season. For example, the average temperature base of spring is the average of the monthly historical ambient temperature data of March, April, and May. Based on the historical environmental data (such as temperature and humidity) of the target ground source heat pump air conditioning system, evaluate the performance of the system under different environmental conditions and calculate the annual average efficiency of the system: collect relevant data, including historical environmental data and system operation data. The historical environmental data includes the monthly average temperature and humidity. The system operation data includes energy consumption and output power. According to the technical parameters and operating characteristics of the ground source heat pump air conditioning system, establish a system performance model. The performance model can be established through experimental data, performance curves provided by equipment manufacturers, etc. Use historical environmental data and system performance models for simulation, and calculate the efficiency of the system under different environmental conditions. For example, simulate the energy efficiency ratio of the system at different monthly average temperatures. According to the simulated efficiency of each month, calculate the weighted average efficiency of each month throughout the year to obtain the annual average efficiency of the system.

[0048] In this implementation scheme, by analyzing and averaging a large amount of historical data, the typical energy consumption and environmental conditions of the system in different seasons can be more accurately reflected. The averaging process can smooth abnormal fluctuations in the data and provide a more representative energy consumption and environmental baseline. Combined with actual historical data and environmental conditions, it ensures the scientificity and reliability of the evaluation results and provides a reliable basis for decision-making.

[0049] Specifically, the emission reduction schemes include an energy efficiency improvement scheme, an increase in the proportion of renewable energy use, and an update of high-efficiency equipment. The process of determining the actual carbon emissions of the target ground source heat pump air-conditioning system after the voluntary implementation of the emission reduction scheme is as follows: for the energy efficiency improvement scheme, the energy efficiency improvement percentage is obtained, and the energy efficiency improvement percentage is calculated by implementing energy efficiency improvement measures, such as optimizing system control strategies, improving maintenance processes, or upgrading some components; for the emission reduction scheme that increases the proportion of renewable energy in total energy consumption, the increase percentage of renewable energy in total energy consumption is obtained, and the increase percentage of renewable energy in total energy consumption is calculated by increasing the use of renewable energy such as solar energy and wind energy; for the emission reduction scheme that updates high-efficiency equipment, the reduction percentage of electricity consumption is obtained, and the reduction percentage of electricity consumption is calculated by replacing high-efficiency equipment; based on the actual carbon emissions calculation model, the energy efficiency improvement percentage, the increase percentage of renewable energy in total energy consumption, and the reduction percentage of electricity consumption are processed to obtain the actual carbon emissions of the energy efficiency improvement scheme, the actual carbon emissions of the emission reduction scheme that increases the proportion of renewable energy, and the actual carbon emissions of the emission reduction scheme that updates high-efficiency equipment.

[0050] In addition to obtaining actual carbon emissions through actual measurement, simulation and standard value methods, actual carbon emissions can also be determined through the following formula:

[0051] C a ={[E se *(1-E e )*C e *(1-P e )]+[E sg *C g *(1-C g )]}*(1-P r )

[0052] In the formula, C a is the actual carbon emissions. For energy efficiency and emission reduction solutions, E se is the baseline electricity consumption for the quarter, E e is 0, P e E is the percentage of energy efficiency improvement in the percentage of energy efficiency improvement. sg is the baseline natural gas consumption for the quarter, C g is the percentage of natural gas energy efficiency improvement in energy efficiency improvement, P r is 0;

[0053] For the emission reduction plan of increasing the proportion of renewable energy use, E se is the baseline electricity consumption for the quarter, E e is 0, P e is 0, E sg is the baseline natural gas consumption for the quarter, C g is 0, P r is the percentage increase in the share of renewable energy in total energy consumption;

[0054] For the emission reduction plan of updating high-efficiency equipment, E se is the baseline electricity consumption for the quarter, E e is the percentage reduction in power consumption, P e is 0, E sg is the baseline natural gas consumption for the quarter, C g is 0, P r is 0.

[0055] The baseline electricity consumption for the quarter is determined by the seasonal historical electricity consumption base, and the baseline natural gas consumption for the quarter is determined by the seasonal historical natural gas consumption base.

[0056] Taking the baseline electricity consumption and baseline natural gas consumption in spring as reference, the emission reduction parameters of different emission reduction schemes are shown in Tables 2-4:

[0057] Table 2 Data table of energy efficiency improvement and emission reduction plan

[0058] parameter value Baseline electricity consumption for the quarter 5000kWh Reduction in electricity consumption 0 Electricity carbon emission factor 0.5kg CO2 / kWh Electricity efficiency improvement percentage 20％ Baseline natural gas consumption for the quarter <![CDATA[2000m 3 ]]> Natural Gas Carbon Emission Factor <![CDATA[2.0kg CO2 / m 3 ]]> Natural gas energy efficiency improvement percentage 15％ Percentage increase in renewable energy 0 Actual carbon emissions 5400kg CO2

[0059] For the plan to reduce emissions by improving energy efficiency, the percentage reduction in electricity consumption is 0, which means that electricity consumption has not decreased, but carbon emissions have been reduced by improving energy efficiency. The percentage improvement in electricity efficiency is 20%, which means that the efficiency of electricity use has increased by 20%. The percentage improvement in natural gas energy efficiency is 15%, which means that the efficiency of natural gas use has increased by 15%.

[0060] Table 3 Data table of emission reduction plan by increasing the proportion of renewable energy use

[0061] parameter value Baseline electricity consumption for the quarter 5000kWh Reduction in electricity consumption 0 Electricity carbon emission factor 0.5kg CO2 / kWh Electricity efficiency improvement percentage 0 Baseline natural gas consumption for the quarter <![CDATA[2000m 3 ]]> Natural Gas Carbon Emission Factor <![CDATA[2.0kg CO2 / m 3 ]]> Natural gas energy efficiency improvement percentage 0 Percentage increase in renewable energy 10％ Actual carbon emissions 5850kg CO2

[0062] For the emission reduction plan of increasing the proportion of renewable energy use, the percentage of reduction in electricity consumption and the percentage of improvement in electricity efficiency are both 0, indicating that carbon emissions are not reduced by reducing electricity consumption or improving electricity efficiency. The percentage of increase in renewable energy is 10%, indicating that the proportion of renewable energy in total energy consumption has increased by 10%.

[0063] Table 4 Data table of emission reduction plan by increasing the proportion of renewable energy use

[0064]

[0065]

[0066] For the emission reduction plan of updating high-efficiency equipment, the percentage reduction in electricity consumption is 10%, indicating that 10% of electricity consumption is reduced by replacing high-efficiency equipment. The percentage improvement in electricity efficiency and the percentage increase in renewable energy are both 0, indicating that carbon emissions are not reduced by improving electricity efficiency or increasing renewable energy.

[0067] Carbon emission reduction: TRe = C p -C a , TRe is the carbon emission reduction.

[0068] The structure of the formula for actual carbon emissions is divided into two parts: electricity consumption and natural gas consumption, which take into account the impact of energy efficiency improvement, increased proportion of renewable energy use and high-efficiency equipment update on carbon emissions. The adjustment of each parameter reflects the implementation effect of specific emission reduction plans. The formula can flexibly adapt to different emission reduction plans, reflect the specific impact of each plan by adjusting relevant parameters, and calculate actual carbon emissions more accurately by using specific historical baseline data.

[0069] Specifically, the process of evaluating the implementation cost of an emission reduction plan and evaluating the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction is as follows: obtaining the cost data of the emission reduction plan, the cost data including the initial investment cost, the maintenance cost in the tth year, the energy saving benefit in the tth year, and the discount rate; when the cost data of the emission reduction plan are integrated, the implementation cost of the emission reduction plan within the expected life span is obtained; the carbon emission reduction within the expected life span of the emission reduction plan after the implementation of the emission reduction plan is obtained; and the benefit-cost ratio is obtained based on the implementation cost and the carbon emission reduction.

[0070] The benefit-cost ratio is calculated by discounting the initial investment cost, annual maintenance cost and energy saving benefits at a discount rate, calculating the implementation cost within the expected life of the emission reduction plan, calculating the total carbon emission reduction within the expected life after the implementation of the emission reduction plan, comparing the implementation cost and carbon emission reduction.

[0071] Taking into account the initial investment, maintenance costs and energy saving benefits, the economic feasibility of the emission reduction plan is comprehensively evaluated. Through discounting, future costs and benefits are converted into current values ​​to ensure the rationality and accuracy of the evaluation results. By calculating the carbon emission reduction amount and the benefit-cost ratio, the environmental and economic benefits of the emission reduction plan are scientifically quantified, and quantitative indicators (such as the benefit-cost ratio) are provided to provide a basis for decision-making and help select the optimal emission reduction plan.

[0072] In addition to obtaining the implementation cost through actual measurement, simulation and standard value methods, it can also be determined through the following formula. The calculation formula for implementation cost is as follows:

[0073]

[0074] Where TCo is the actual carbon emissions, t is the year number of the expected life of the emission reduction plan, t = 1, 2, 3, ..., N, N is the expected life of the emission reduction plan, CIn is the initial investment cost, which can be obtained through project budget, bidding documents or supplier quotations, Co t is the maintenance cost in year t. According to the equipment maintenance plan and historical data, the future annual maintenance cost is obtained. Ss t is the energy saving benefit in year t. By comparing the energy consumption data before and after the implementation of the emission reduction plan, the annual energy cost savings are obtained. r is the discount rate determined according to the capital cost of the project, the market interest rate or the company's financial policy.

[0075] By converting future costs and benefits into current values ​​through the discount rate, it accurately reflects the time value of money, takes into account the initial investment, maintenance costs and energy savings benefits, and can comprehensively evaluate the actual cost of emission reduction programs. It provides a quantitative analysis tool to facilitate the comparison of the economic feasibility of different emission reduction programs.

[0076] The calculation format of the benefit-cost ratio is as follows:

[0077]

[0078] Where BCR is the benefit-cost ratio, TRe is the carbon emission reduction, and TCo is the implementation cost.

[0079] The voluntary emission reduction data evaluation system for ground source heat pump air conditioning system is used for the above-mentioned voluntary emission reduction data evaluation method for ground source heat pump air conditioning system, such as Figure 3 As shown, it includes a carbon emission baseline determination subsystem, a carbon emission reduction determination subsystem and a benefit-cost ratio determination subsystem, wherein: the carbon emission baseline determination subsystem is used to determine the carbon emission baseline of the target ground source heat pump air-conditioning system when the emission reduction plan is not voluntarily implemented; the carbon emission reduction determination subsystem is used to determine the actual carbon emissions of the target ground source heat pump air-conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; the benefit-cost ratio determination subsystem is used to evaluate the implementation cost of the emission reduction plan, and evaluate the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction.

[0080] In this implementation plan, by dividing the assessment process into three subsystems: carbon emission baseline determination, carbon emission reduction determination, and benefit-cost ratio determination, the entire assessment process is made more organized and operational, and can provide accurate data support, including the carbon emission baseline of the ground source heat pump air-conditioning system, actual carbon emissions, and the implementation cost of the emission reduction plan. These data are the basis for evaluating the effectiveness and economic benefits of the emission reduction plan, and help decision makers make accurate decisions.

[0081] By determining the carbon emission baseline and actual emission reduction, the system can quantitatively evaluate the effect of emission reduction programs. This quantification can help decision makers clearly understand the actual impact of emission reduction programs, so as to better formulate policies and resource allocation, and can evaluate the economic benefits of emission reduction programs, including implementation costs and benefit-cost ratios. This evaluation can help decision makers weigh the costs and benefits of emission reduction programs and make reasonable decisions.

[0082] A device for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system comprises a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system as described above, such as Figure 4As shown, it also includes a carbon emission baseline determination module, a carbon emission reduction determination module and a benefit-cost ratio determination module, wherein: the carbon emission baseline determination module is used to determine the carbon emission baseline of the target ground source heat pump air-conditioning system when the emission reduction plan is not voluntarily implemented; the carbon emission reduction determination module is used to determine the actual carbon emissions of the target ground source heat pump air-conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; the benefit-cost ratio determination module is used to evaluate the implementation cost of the emission reduction plan, and evaluate the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction.

[0083] In this implementation plan, the carbon emission baseline of the target ground source heat pump air conditioning system before the emission reduction plan is implemented is determined, providing a reference point for subsequent evaluation, so that the actual emission reduction effect can be quantified. By comparing the actual carbon emissions after the implementation of the voluntary emission reduction plan with the baseline data, the actual carbon emission reduction can be determined, so that the actual effect of the emission reduction plan can be clearly understood. The implementation cost of the emission reduction plan is evaluated, and combined with the achieved carbon emission reduction, the benefit-cost ratio is calculated to help decision makers fully understand the economic benefits of the emission reduction plan, so as to better weigh the relationship between investment and benefits.

[0084] An electronic device includes: a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the above-mentioned method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system.

[0085] A computer-readable storage medium is used to store a program, and when the program is executed by a processor, the method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system as described above is implemented.

[0086] In summary, this application has at least the following effects:

[0087] The carbon emission baseline of the target ground source heat pump air conditioning system before the emission reduction plan was implemented was determined, providing a reference point for subsequent evaluation, so that the actual emission reduction effect can be quantified. By comparing the actual carbon emissions after the implementation of the voluntary emission reduction plan with the baseline data, the actual carbon emission reduction can be determined, so that the actual effect of the emission reduction plan can be clearly understood. The implementation cost of the emission reduction plan was evaluated, and combined with the achieved carbon emission reduction, the benefit-cost ratio was calculated to help decision makers fully understand the economic benefits of the emission reduction plan, so as to better weigh the relationship between investment and benefits.

[0088] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0089] The present invention is described with reference to flowcharts and / or block diagrams of systems, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0090] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0091] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0092] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0093] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. The method for evaluating voluntary emission reduction data of ground source heat pump air conditioning system is characterized by: The following steps are involved: Determine the carbon emissions baseline of the target ground source heat pump air conditioning system without the voluntary implementation of the emission reduction program; Determine the actual carbon emissions of the target ground source heat pump air conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; Evaluate the implementation cost of emission reduction options and assess the benefit-cost ratio of emission reduction options based on implementation cost and carbon emission reduction; The function formula of the carbon emission baseline is as follows: In the formula, is a function of the carbon emissions baseline, is the seasonal historical electricity consumption base, is the carbon emission factor of electricity, is the share of renewable energy, is the seasonal historical natural gas consumption base, is the carbon emission factor of natural gas, is the seasonal historical average energy efficiency ratio of ground source heat pump air conditioning system, is the temperature adjustment coefficient, is the seasonal historical average temperature base, is the reference temperature; The process for determining the baseline carbon emissions of a geothermal heat pump air conditioning system without the voluntary implementation of the emission reduction program is as follows: Obtain historical energy consumption data of the target ground source heat pump air conditioning system and historical environmental data of the target ground source heat pump air conditioning system; Processing historical energy consumption data to obtain energy consumption baseline data, wherein the energy consumption baseline data includes seasonal historical electricity consumption base and seasonal historical natural gas consumption base; Processing historical environmental data to obtain environmental baseline data, the environmental baseline data including seasonal historical average temperature base and seasonal historical average energy efficiency ratio of ground source heat pump air conditioning system; Determine the carbon emission baseline based on energy consumption baseline data and environmental baseline data; The process of processing historical energy consumption data to obtain energy consumption baseline data is as follows: Analyze the historical energy consumption data to obtain the monthly historical energy consumption data of each year, and average the monthly historical energy consumption data of each year to obtain the seasonal historical energy consumption base; Analyze the historical energy consumption data to obtain the monthly historical natural gas consumption data of each year, and average the monthly historical natural gas consumption data of each year to obtain the seasonal historical natural gas consumption base; The process of processing historical environmental data and obtaining environmental baseline data is as follows: Analyze the historical environmental data to obtain the monthly historical environmental temperature of each year, and average the historical environmental temperature of each year to obtain the seasonal historical average temperature base; The annual average efficiency of the target ground source heat pump air conditioning system is evaluated based on the historical environmental data of the target ground source heat pump air conditioning system.

2. The method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system according to claim 1, characterized in that: The emission reduction schemes include energy efficiency improvement, renewable energy use ratio increase and high-efficiency equipment update. The process of determining the actual carbon emissions of the target ground source heat pump air conditioning system after voluntary implementation of the emission reduction scheme is as follows: For energy efficiency improvement and emission reduction solutions, obtain the energy efficiency improvement percentage; For the emission reduction scheme of increasing the proportion of renewable energy use, obtain the percentage increase of renewable energy in total energy consumption; For the emission reduction plan of updating high-efficiency equipment, the percentage reduction of electricity consumption is obtained; Based on the actual carbon emissions calculation model, the percentage of energy efficiency improvement, the percentage of increase in the proportion of renewable energy in total energy consumption and the percentage of reduction in electricity consumption are processed respectively to obtain the actual carbon emissions of the energy efficiency improvement and emission reduction plan, the actual carbon emissions of the emission reduction plan by increasing the proportion of renewable energy use and the actual carbon emissions of the emission reduction plan by updating high-efficiency equipment.

3. The method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system according to claim 1, characterized in that: The process of evaluating the implementation cost of emission reduction options and the benefit-cost ratio of emission reduction options based on implementation cost and carbon emission reduction is as follows: Obtaining cost data of the emission reduction plan, the cost data including initial investment cost, maintenance cost in year t, energy saving benefit in year t, and discount rate, where t is the year number of the expected life of the emission reduction plan; When the cost data of the emission reduction scheme is fused, the implementation cost of the emission reduction scheme within its expected life span is obtained; Obtain the carbon reductions after the implementation of the emission reduction plan within the expected life of the emission reduction plan; Obtain benefit-cost ratios based on implementation costs and carbon reductions.

4. The method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system according to claim 3 is characterized in that: The calculation format of the benefit-cost ratio is as follows: In the formula, For the benefit-cost ratio, For carbon emission reduction, For implementation costs.

5. A voluntary emission reduction data evaluation system for a ground source heat pump air conditioning system, used in the voluntary emission reduction data evaluation method for a ground source heat pump air conditioning system according to any one of claims 1 to 4, characterized in that: It includes a carbon emission baseline determination subsystem, a carbon emission reduction determination subsystem and a benefit-cost ratio determination subsystem, among which: The carbon emission baseline determination subsystem is used to determine the carbon emission baseline when the target ground source heat pump air conditioning system does not voluntarily implement the emission reduction plan; The carbon emission reduction determination subsystem is used to determine the actual carbon emissions of the target ground source heat pump air conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; The benefit-cost ratio determination subsystem is used to evaluate the implementation cost of the emission reduction plan, and evaluates the benefit-cost ratio of the emission reduction plan based on the implementation cost and the carbon emission reduction amount.

6. A voluntary emission reduction data evaluation device for a ground source heat pump air conditioning system, characterized in that: The method comprises a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the method for evaluating voluntary emission reduction data of a ground source heat pump air conditioning system according to any one of claims 1 to 4, and further comprises a carbon emission baseline determination module, a carbon emission reduction determination module and a benefit-cost ratio determination module, wherein: The carbon emission baseline determination module is used to determine the carbon emission baseline when the target ground source heat pump air conditioning system does not voluntarily implement the emission reduction plan; The carbon emission reduction determination module is used to determine the actual carbon emissions of the target ground source heat pump air conditioning system after the voluntary implementation of the emission reduction plan, and determine the carbon emission reduction after the implementation of the voluntary emission reduction plan in combination with the carbon emission baseline; The benefit-cost ratio determination module is used to evaluate the implementation cost of the emission reduction scheme, and evaluate the benefit-cost ratio of the emission reduction scheme based on the implementation cost and the carbon emission reduction amount.

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