CN114548805B - Application effect evaluation model of solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction - Google Patents
Application effect evaluation model of solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction Download PDFInfo
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Abstract
The invention provides an application effect evaluation model of a solar energy and ground source heat pump composite system in typical port energy conservation and emission reduction. The method comprises the following steps: step 1: collecting economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers; step 2: respectively calculating economic indexes, energy-saving indexes and environmental protection indexes of different manufacturers based on the economic data, the energy consumption data and the environmental benefit data; and 3, step 3: calculating the investment energy saving rate and the investment emission reduction rate based on the economic index, the energy saving index and the environmental protection index, and further measuring and calculating the comprehensive energy saving and emission reduction evaluation index; and 4, step 4: and evaluating the comprehensive energy-saving emission-reducing effect of the solar energy and ground source heat pump composite systems of different manufacturers in energy-saving emission-reducing according to the comprehensive energy-saving emission-reducing evaluation index value. The invention provides an application effect evaluation model of a solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction, which integrates economic, energy conservation and emission reduction benefits, and is comprehensive and objective.
Description
Technical Field
The invention is suitable for the field of energy conservation, and particularly relates to an application effect evaluation model of a solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction.
Background
With the coming of the 21 st century, the building industry in China is continuously developed, and the requirement on building energy conservation is higher and higher. The key points of the related industries are to reduce the air pollution caused by heating in winter in China, reduce the energy consumption of a heating and air-conditioning system and save energy.
Buildings and equipment in the district are numerous, energy consumption is large, and the method is a main working field of energy conservation and emission reduction of water transportation. The harbor district location and the layout are unique, the conditions of direct solar radiation and ground source heat energy storage are superior, underground water systems are abundant, the ground source heat pump system is favorable for cold and heat exchange, and clean energy sources such as solar energy, geothermal energy and the like have good application prospects. The application of novel renewable and clean energy solves the problems of high energy consumption and large pollution of the traditional heating and refrigerating system.
However, the cost and the effect of the solar energy and ground source heat pump composite system of different manufacturers are very different, and the government introducing the solar energy and ground source heat pump composite system in a large scale lacks the evaluation basis of the comprehensive system of the system.
Disclosure of Invention
Aiming at the defect that the solar energy and ground source heat pump composite system introduced in a large scale in the prior art lacks evaluation basis of a comprehensive system of the system, the invention provides an application effect evaluation model of the solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction, which integrates economic, energy-saving and emission reduction benefits, and is comprehensive and objective.
The technical scheme adopted by the invention is as follows:
an application effect evaluation model of a solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction comprises the following steps:
step 1: collecting economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers;
step 2: respectively calculating economic indexes, energy-saving indexes and environmental protection indexes of different manufacturers based on the economic data, the energy consumption data and the environmental benefit data;
and 3, step 3: calculating the investment energy saving rate and the investment emission reduction rate based on the economic index, the energy saving index and the environmental protection index, and further measuring and calculating the comprehensive energy saving and emission reduction evaluation index;
and 4, step 4: and evaluating the comprehensive energy-saving and emission-reducing effect of the solar energy and ground source heat pump composite systems of different manufacturers in energy saving and emission reducing according to the comprehensive energy-saving and emission-reducing evaluation index value.
Further, the economic data in step 1 comprises initial investment amount, system operation cost and benchmark yield;
the energy consumption data comprises system power consumption, system running time, indoor and system set average temperature during cooling, indoor temperature during heating and system set average temperature;
the environmental benefit data comprises unit coal power generation amount and unit coal pollutant emission amount.
Further, the economic indicators comprise project annual cost and unit area system annual average cost,
the formula for calculating the annual cost of the project is as follows:
the calculation formula of the annual average cost of the unit area system is as follows:
wherein ZC is project annual cost, AC is unit area system annual average cost, i is reference yield, withdrawal reference interest rate, n is service life of solar energy and ground source heat pump composite system, C 0 For annual operating cost, C is initial investment amount, and s is the area of a solar heat collector in the solar energy and ground source heat pump composite system.
Further, the energy-saving index comprises system energy-saving amount, and the calculation formula of the system energy-saving amount is as follows:
where Δ R is the system energy saving, t 1 Average cooling time of system operation year, t 2 Average heating time for system operation year, T 1 Indicating the average refrigerating temperature, T, of the system during refrigeration 2 Represents the average heating temperature of the system during heating,
indicates the actual temperature in the room during the cooling period of the system, and>
indicating the actual indoor temperature during the heating of the system, e 1 Represents the standard power consumption per cooling standard of a reference object, e 2 Indicating the standard power consumption per one degree of temperature rise, E, of the reference standard 1 Total power consumption for the system during the cooling period, E 2 The total power consumption of the system in the heating period.
Preferably, the environmental protection index comprises a system displacement reduction amount, and the calculation formula of the system displacement reduction amount is as follows:
ΔS＝ΔR/δ×ΔCO 2 +ΔR/δ×ΔSO 2 +ΔR/δ×ΔPM 10
wherein, delta S represents the comprehensive emission reduction of the system, delta represents the unit coal power generation amount, and Delta CO 2 Represents the emission of carbon dioxide per unit coal,. DELTA.SO 2 Expresses the emission of sulfur dioxide per unit coal,. DELTA.PM 10 Representing the amount of dust generated per unit of coal.
Further, the calculation formula of the investment energy saving rate is as follows:
L 1 ＝ΔR/ZC
wherein L is 1 And the investment energy saving rate is shown.
Further, the calculation formula of the investment emission reduction rate is as follows:
L 2 ＝ΔS/ZC
wherein L is 2 Representing the investment emission reduction rate.
Further, the comprehensive energy-saving emission-reduction evaluation indexes are as follows:
wherein L is an evaluation index of comprehensive energy conservation and emission reduction, the larger L is, the better comprehensive energy conservation and emission reduction effect is shown, and omega 1 The coefficient of the investment energy-saving importance degree is constant and is not less than 0 and not more than omega 1 ≤1，ω 2 The coefficient of importance of investment emission reduction is constant and is not less than 0 and not more than omega 2 1 or less, and omega 1 +ω 2 ＝1，
Represents the average value of the investment energy-saving rates of different manufacturers and is used for judging whether the investment energy-saving rate of the different manufacturers is greater or less>
Shows the investment emission reduction rate of different manufacturersAverage value.
Further, the calculation steps of the comprehensive energy-saving emission-reduction evaluation index are as follows:
Z＝ω l ×rank(Z1)+ω 2 ×rank(Z2)
wherein Z is an evaluation index of comprehensive energy conservation and emission reduction, the smaller Z is, the better comprehensive energy conservation and emission reduction effect is shown, and omega is 1 The coefficient of investment energy-saving importance is constant, 0 is not more than omega 1 ≤1，ω 2 The coefficient of importance of investment emission reduction is constant and is not less than 0 and not more than omega 2 1 or less, and omega 1 +ω 2 =1,rank (Z1) represents ranking of investment energy saving rate, rank (Z2) represents ranking of investment emission reduction rate.
Aiming at the defect that the solar energy and ground source heat pump composite system introduced in a large scale in the prior art lacks evaluation basis of a comprehensive system of the system, the invention provides an application effect evaluation model of the solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction, which integrates economic, energy-saving and emission reduction benefits more comprehensively.
1. According to the invention, a set of objective solar energy and ground source heat pump composite system evaluation system is designed by integrating relevant data of economic, energy-saving and emission-reduction benefits, is considered comprehensively, and has a good reference effect on popularization of a solar energy and ground source heat pump composite system of a high-efficiency energy-saving factory;
2. the invention brings the area of the solar heat collector in the solar energy and ground source heat pump composite system into consideration of the annual average cost of the system per unit area. The characteristics of the solar energy and ground source heat pump composite system and the limitation of laying the area are fully considered. First, the larger the collector area, the more heat is provided and the lower the operating cost. In addition, in port areas, a solar heat collector is generally laid on a roof, a warehouse roof and the like in a large area, so that the area of the solar heat collector is limited to a certain extent;
3. the invention quantifies the number of the evaluation system of the solar energy and ground source heat pump composite system, and obtains an evaluation conclusion based on data measurement and calculation, thereby being more objective.
Drawings
FIG. 1 is a step diagram of an application effect evaluation model of a solar energy and ground source heat pump composite system in a typical harbor energy conservation and emission reduction system according to the present invention;
FIG. 2 is an index flow chart of an application effect evaluation model of the solar energy and ground source heat pump composite system in a typical port energy conservation and emission reduction system;
fig. 3 is a step chart of another evaluation model of the application effect of the solar energy and ground source heat pump composite system of the invention in the typical port energy conservation and reduction.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the project of solar energy and ground source heat pumps, the project is originally designed to collect sunlight and convert the sunlight into heat in a solar energy heat utilization system, and a water source heat pump of underground water or surface water is adopted in places with abundant underground water or good surface water source, so that the energy consumption is reduced, and the pollutant emission is reduced. Therefore, the comprehensive performance evaluation method needs to focus on how to quantify the energy-saving and emission-reducing effects of the method. In addition, the initial investment amount of the solar energy and ground source heat pump project is large, large engineering cost is required besides equipment cost, the operation cost is a part of small expenditure in the operation stage, the economic index is abandoned, and the effect of only considering energy conservation and emission reduction is obviously not suitable. Therefore, the invention comprehensively considers and sets an evaluation model by comprehensively considering energy conservation, emission reduction and economic indexes.
Example 1
As shown in fig. 1 and fig. 2, an application effect evaluation model of a solar energy and ground source heat pump combined system in a typical harbor energy conservation and emission reduction comprises the following steps:
step 1: collecting economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers;
step 2: respectively calculating economic indexes, energy-saving indexes and environmental protection indexes of different manufacturers based on the economic data, the energy consumption data and the environmental benefit data;
and step 3: calculating the investment energy saving rate and the investment emission reduction rate based on the economic index, the energy saving index and the environmental protection index, and further measuring and calculating the comprehensive energy saving and emission reduction evaluation index;
and 4, step 4: and evaluating the comprehensive energy-saving emission-reducing effect of the solar energy and ground source heat pump composite systems of different manufacturers in energy-saving emission-reducing according to the comprehensive energy-saving emission-reducing evaluation index value.
The method comprises the steps of firstly positioning the range of an evaluation object on the comprehensive effects of energy conservation, economy and environmental protection of a ground source heat pump system, and further carrying out measurement and calculation on corresponding representative indexes of the three aspects by collecting relevant data of economy, energy consumption and environmental benefit required by existing data evaluation, wherein the specific measurement and calculation method is shown in the following chapter. The performance of the ground source heat pump in the project in the three aspects of economy, energy conservation and environmental protection can be quantitatively evaluated through the measurement and calculation of the relevant indexes in the three aspects, and finally, the comprehensive performance of the project can be objectively characterized and evaluated through two comprehensive indexes of the investment energy saving rate and the investment emission reduction rate of the project.
Further, the economic data in step 1 comprises initial investment amount, system operation cost and benchmark yield;
the energy consumption data comprises system power consumption, system running time, indoor and system set average temperature during cooling, indoor temperature during heating and system set average temperature;
the environmental benefit data comprises unit coal power generation amount and unit coal pollutant emission amount.
Further, the economic indicators comprise project annual cost and unit area system annual average cost,
the formula for calculating the annual cost of the project is as follows:
the calculation formula of the annual average cost of the unit area system is as follows:
wherein ZC is project annual cost, AC is unit area system annual average cost, i is reference yield, withdrawal reference interest rate, n is service life of solar energy and ground source heat pump composite system, C 0 For annual operating cost, C is initial investment amount, and s is the area of a solar heat collector in the solar energy and ground source heat pump composite system.
The solar heat collection system mainly aims to provide production domestic water for an office area and a living area, simultaneously provide a part of heat, reduce the work load of a ground source heat pump system and improve the operation efficiency of the ground source heat pump system. The larger the area of the heat collector in the system, the more heat is provided and the lower the operating cost will be. In addition, in port areas, the solar heat collector is generally laid on a roof, a warehouse roof and the like in a large area, and the area of the solar heat collector is limited to a certain extent, so that the area of the solar heat collector in a solar and ground source heat pump composite system is taken into consideration for the annual average cost of the system per unit area.
Annual project costs allow comparisons between projects of different life spans, since the annual value has shared the initial investment and operating costs for each year with a certain rate of return, so that the economic effects of two projects can be compared by this value even if the lives of the projects differ.
Take a solar energy-ground source heat pump composite system device of a container terminal in a certain port area of a certain plant as an example.
TABLE 1 overview of ground source heat pump plant
TABLE 2 overview of solar plants
TABLE 3 initial investment chart of composite system
The initial investment amount of the composite project is 460 ten thousand yuan, the annual operating cost is 50.0 ten thousand yuan, the service life is 25 years, the bank interest rate i is 10 percent,
the annual fee ZC of the project is as follows: the weight of the product is 101.5 ten thousand yuan,
the annual average cost AC which is uniformly distributed to the unit area system is as follows: 1880.0 yuan/m 2 。
Further, the energy-saving index comprises system energy-saving amount, and the calculation formula of the system energy-saving amount is as follows:
wherein, deltaR is the energy saving amount of the system, t 1 Average cooling time of system operation year, t 2 Average heating time for system operation year, T 1 Indicating the average refrigerating temperature, T, of the system during refrigeration 2 Represents an average heating temperature of the system during heating,
indicating actual temperature in the chamber during system cooling>
Indicating the actual indoor temperature during the heating of the system, e 1 Represents the standard power consumption per cooling standard of a reference object, e 2 Indicating the standard power consumption per one degree of temperature rise, E, of the reference standard 1 Total power consumption for the system during the cooling period, E 2 The total power consumption of the system in the heating period.
Refrigeration energy consumption in the project
1275kw, refrigeration time t 1 960 h/year, warm load
1296kw, heating time t 2 Is 720 h/year, and consumes energy all year round E 1 +E 2 About 680000kwh, and the energy saving amount of the system is 1477120kw.
Preferably, the environmental protection index comprises a system displacement reduction amount, and the calculation formula of the system displacement reduction amount is as follows:
ΔS＝ΔR/δ×ΔCO 2 +ΔR/δ×ΔSO 2 +ΔR/δ×ΔPM 10
wherein, delta S represents the comprehensive emission reduction of the system, delta represents the unit coal power generation amount, delta CO 2 Represents the emission of carbon dioxide, Δ SO, per unit coal production 2 Represents the emission of sulfur dioxide, Δ PM, per unit coal 10 Representing the amount of dust generated per unit of coal.
The consumed energy is converted into the amount of standard coal, and the electricity of 1kwh is equivalent to the standard coal equivalent of 0.123kg according to the conversion relation.
The key of calculating the project investment emission reduction rate is to perform monetization representation on the part of gas for emission reduction, SO that the part of gas for emission reduction has the same economic significance as the cost, in the application, the monetization method for the emission reduction gas is a method for paying willingness to society, namely, the method is determined by calculating the monetary value which the society is willing to pay for reducing the gas per unit mass, and the monetary values corresponding to the reduction of CO2, SO2 and PM10 per unit mass (kg) can be determined by the method as follows: 0.047, 0.58 and 0.28 yuan.
The amount of carbon dioxide discharged from coal was 422000kg,
2380kg of discharge amount of sulfur dioxide generated by corresponding coal,
the amount of dust pollution corresponding to coal was 390kg.
The integrated decrement of the Delta S system is 424770kg.
Further, the calculation formula of the investment energy saving rate is as follows:
L 1 ＝ΔR/ZC
wherein，L 1 Representing the investment energy saving rate.
Further, the calculation formula of the investment emission reduction rate is as follows:
L 2 ＝ΔS/ZC
wherein L is 2 Representing the investment emission reduction rate.
Further, the comprehensive energy-saving emission-reduction evaluation indexes are as follows:
wherein L is an evaluation index of comprehensive energy conservation and emission reduction, the larger L is, the better comprehensive energy conservation and emission reduction effect is shown, and omega 1 The coefficient of investment energy-saving importance is constant, 0 is not more than omega 1 ≤1，ω 2 The coefficient of importance of investment emission reduction is constant and is not less than 0 and not more than omega 2 1 or less, and omega 1 +ω 2 ＝1，
Represents the average value of the investment energy-saving rates of different manufacturers and is used for judging whether the investment energy-saving rate of the different manufacturers is greater or less>
And the average value of the emission reduction rate of the investment of different manufacturers is shown. The key of calculating the project investment emission reduction rate is to perform monetization representation on the part of gas subjected to emission reduction, so that the part of gas has the economic significance the same as the cost.
A calculation method of comprehensive energy-saving emission-reduction evaluation indexes is provided.
Example 2
The embodiment 2 is different from the embodiment in that another calculation method for comprehensive energy saving and emission reduction evaluation index is provided, comprehensive energy saving and emission reduction evaluation is performed in a sequencing mode, calculation is performed in a sequencing mode, the operation is simple and easy, forced sequencing can be performed on similar manufacturers, and the evaluation result is clear at a glance.
Specifically, an application effect evaluation model of a solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction comprises the following steps:
step 1: collecting economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers;
step 2: respectively calculating economic indexes, energy-saving indexes and environmental protection indexes of different manufacturers based on the economic data, the energy consumption data and the environmental benefit data;
and step 3: calculating the investment energy saving rate and the investment emission reduction rate based on the economic index, the energy saving index and the environmental protection index, and further measuring and calculating the comprehensive energy saving and emission reduction evaluation index;
and 4, step 4: and evaluating the comprehensive energy-saving and emission-reducing effect of the solar energy and ground source heat pump composite systems of different manufacturers in energy saving and emission reducing according to the comprehensive energy-saving and emission-reducing evaluation index value.
Similarly, the economic indicators include the annual project cost and the annual average system cost per unit area,
the calculation formula of the annual project fee is as follows:
the calculation formula of the annual average cost of the unit area system is as follows:
wherein ZC is the annual cost of the project, AC is the annual average cost of the system in unit area, i is the reference yield, the reference interest rate of the central row, n is the service life of the solar energy and ground source heat pump composite system, C 0 For annual operating cost, C is initial investment amount, and s is the area of a solar heat collector in the solar energy and ground source heat pump composite system.
The energy-saving index comprises system energy-saving amount, and the calculation formula of the system energy-saving amount is as follows:
wherein, delta R is system energy savingAmount, t 1 Average cooling time, t, of system operation year 2 Average heating time for system operation year, T 1 Indicating the average refrigerating temperature, T, of the system during refrigeration 2 Represents an average heating temperature of the system during heating,
indicates the actual temperature in the room during the cooling period of the system, and>
indicating the actual indoor temperature during system heating, e 1 Represents the power consumption per cooling standard of the reference object, e 2 Indicating the standard power consumption per one degree of temperature rise, E, of the reference standard 1 Total power consumption for the system during the cooling period, E 2 The total power consumption of the system in the heating period.
The environmental protection index comprises system displacement reduction, and the calculation formula of the system displacement reduction is as follows:
ΔS＝R/δ×ΔCO 2 +R/δ×ΔSO 2 +R/δ×ΔPM 10
wherein, delta S represents the comprehensive emission reduction of the system, delta represents the unit coal power generation amount, and Delta CO 2 Represents the emission of carbon dioxide per unit coal,. DELTA.SO 2 Expresses the emission of sulfur dioxide per unit coal, delta PM 10 Representing the amount of dust generated per unit of coal.
The comprehensive energy-saving emission-reduction evaluation index comprises the following calculation steps:
Z＝ω 1 ×rank(Z1)+ω 2 ×rank(Z2)
wherein Z is an evaluation index of comprehensive energy conservation and emission reduction, the smaller Z is, the better comprehensive energy conservation and emission reduction effect is shown, and omega is 1 The coefficient of the investment energy-saving importance degree is constant and is not less than 0 and not more than omega 1 ≤1，ω 2 The coefficient of importance of investment emission reduction is constant and is not less than 0 and not more than omega 2 1 or less, and omega 1 +ω 2 =1,rank (Z1) represents ranking of investment energy saving rates, rank (Z2) represents ranking of investment emission reduction rates.
Example 3
Example 3 differs from example 1 in that: the investment energy saving rate and the investment emission reduction rate do not need to be calculated, index ranking is directly carried out on the basis of the economic index, the energy saving index and the environmental protection index, and comprehensive evaluation is carried out according to the importance degree of researchers on the economic index, the energy saving index and the environmental protection index.
Specifically, as shown in fig. 3, an application effect evaluation model of a solar energy and ground source heat pump combined system in a typical harbor district energy conservation and emission reduction includes the following steps:
step 1: collecting economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers;
and 2, step: respectively calculating economic indexes, energy-saving indexes and environmental protection indexes of different manufacturers based on the economic data, the energy consumption data and the environmental benefit data;
and step 3: and evaluating the comprehensive energy-saving and emission-reducing effects of the solar energy and ground source heat pump composite systems of different manufacturers in energy-saving and emission-reducing based on economic indexes, energy-saving indexes and environmental protection indexes.
The economic indicators include the annual project cost and the annual average cost of the system per unit area,
the calculation formula of the annual project fee is as follows:
the calculation formula of the annual average cost of the unit area system is as follows:
wherein ZC is the annual cost of the project, AC is the annual average cost of the system in unit area, i is the reference yield, the reference interest rate of the central row, n is the service life of the solar energy and ground source heat pump composite system, C 0 The annual operation cost is high, C is the initial investment amount, and s is the area of a solar heat collector in the solar and ground source heat pump composite system.
The energy-saving index comprises system energy-saving amount, and a calculation formula of the system energy-saving amount is as follows:
where Δ R is the system energy saving, t 1 Average cooling time of system operation year, t 2 Average heating time for system operation year, T 1 Indicating the average refrigerating temperature, T, of the system during refrigeration 2 Represents the average heating temperature of the system during heating,
indicates the actual temperature in the room during the cooling period of the system, and>
indicating the actual indoor temperature during the heating of the system, e 1 Represents the power consumption per cooling standard of the reference object, e 2 Indicating a standard power consumption per one degree of temperature rise, E, of the reference standard 1 Total power consumption for the system during the cooling period, E 2 The total power consumption of the system in the heating period.
The environmental protection index comprises system displacement reduction, and the calculation formula of the system displacement reduction is as follows:
ΔS＝ΔR/δ×ΔCO 2 +ΔR/≤×ΔSO 2 +ΔR/δ×ΔPM 10 wherein, delta S represents the comprehensive emission reduction of the system, delta represents the unit coal power generation amount, and Delta CO 2 Indicates the emission of carbon dioxide per coal unit,. DELTA.SO 2 Expresses the emission of sulfur dioxide per unit coal,. DELTA.PM 10 Representing the amount of dust generated per unit of coal.
R＝ω 4 ×rank(ΔR)+ω 5 ×rank(ΔS)-0 3 ×rank(AC)
Wherein R is an evaluation index of comprehensive energy conservation and emission reduction, the smaller R is, the better comprehensive energy conservation and emission reduction effect is shown, and omega 3 The coefficient of importance of the economic index is constant and is not less than 0 and not more than omega 3 ≤1，ω 4 The coefficient of energy-saving importance is constant, and is not less than 0 and not more than omega 4 ≤1，ω 5 Represents the emission reduction importance coefficient, is constant, and is not less than 0 and not more than omega 5 1 or less, andand omega 3 +ω 4 +ω 5 =1,rank ([ delta ] R) represents the ranking of investment energy saving rates, rank ([ delta ] S) represents the ranking of investment emission reduction rates, and rank (AC) represents the ranking of economic importance.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An application effect evaluation model of a solar energy and ground source heat pump composite system in typical port area energy conservation and emission reduction is characterized by comprising the following steps:
step 1: collecting economic data, energy consumption data and environmental benefit data of solar energy and ground source heat pump composite systems of different manufacturers;
step 2: respectively calculating economic indexes, energy-saving indexes and environmental protection indexes of different manufacturers based on the economic data, the energy consumption data and the environmental benefit data;
and step 3: calculating the investment energy saving rate and the investment emission reduction rate based on the economic index, the energy saving index and the environmental protection index, and further measuring and calculating the comprehensive energy saving and emission reduction evaluation index;
and 4, step 4: evaluating the comprehensive energy-saving emission-reducing effect of the solar energy and ground source heat pump composite systems of different manufacturers in energy-saving emission-reducing according to the comprehensive energy-saving emission-reducing evaluation index value;
wherein, the economic data in the step 1 comprises initial investment amount, system operation cost and benchmark yield;
the energy consumption data comprises system power consumption, system running time, indoor and system set average temperature during refrigeration, indoor temperature during heating and system set average temperature;
the environmental benefit data comprises unit coal power generation amount and unit coal pollutant discharge amount;
wherein the economic indicators comprise project annual cost and unit area system annual average cost,
the calculation formula of the annual project fee is as follows:
the calculation formula of the annual average cost of the unit area system is as follows:
wherein ZC is the annual cost of the project, AC is the annual average cost of the system in unit area, i is the reference yield, the reference interest rate of the central row, n is the service life of the solar energy and ground source heat pump composite system, C 0 The annual operating cost is saved, C is the initial investment amount, and s is the area of a solar heat collector in the solar energy and ground source heat pump composite system;
the energy-saving index comprises system energy-saving amount, and a calculation formula of the system energy-saving amount is as follows:
where Δ R is the system energy saving, t 1 Average cooling time, t, of system operation year 2 Average heating time for system operation year, T 1 Indicating the average refrigerating temperature, T, of the system during refrigeration 2 Represents the average heating temperature of the system during heating,
indicates the actual temperature in the room during the cooling period of the system, and>
indicating the actual indoor temperature during the heating of the system, e 1 Represents the power consumption per cooling standard of the reference object, e 2 Indicating a standard power consumption per one degree of temperature rise, E, of the reference standard 1 Total power consumption of the system during the cooling period, E 2 The total power consumption of the system in the heating period;
the environmental protection index comprises system displacement reduction, and a calculation formula of the system displacement reduction is as follows:
ΔS＝△R/δ×△CO 2 +△R/δ×△SO 2 +△R/δ×△PM 10
wherein, delta S represents the comprehensive emission reduction of the system, delta represents the unit coal power generation amount, and Delta CO 2 Represents the emission of carbon dioxide per unit coal,. DELTA.SO 2 Expresses the emission of sulfur dioxide per unit coal,. DELTA.PM 10 Represents the amount of dust pollution per unit coal;
wherein, the calculation formula of the investment energy-saving rate is as follows:
L 1 ＝△R/ZC
wherein L is 1 Representing the investment energy-saving rate;
wherein, the calculation formula of the investment emission reduction rate is as follows:
L 2 ＝△S/ZC
wherein L is 2 Representing the investment emission reduction rate.
2. The model for evaluating the application effect of the solar energy and ground source heat pump composite system in typical harbor district energy conservation and emission reduction according to claim 1, is characterized in that the comprehensive energy conservation and emission reduction evaluation indexes are as follows:
wherein L is an evaluation index of comprehensive energy conservation and emission reduction, the larger L is, the better comprehensive energy conservation and emission reduction effect is shown, and omega 1 The coefficient of the investment energy-saving importance degree is constant and is not less than 0 and not more than omega 1 ≤1，ω 2 The coefficient of importance of investment emission reduction is constant and is not less than 0 and not more than omega 2 1 or less, and omega 1 +ω 2 ＝1，
Represents the average value of the investment energy-saving rates of different manufacturers>
And the average value of the emission reduction rate of the investment of different manufacturers is shown.
3. The model for evaluating the application effect of the solar energy and ground source heat pump composite system in the typical port energy conservation and emission reduction as claimed in claim 2, wherein the calculation steps of the comprehensive energy conservation and emission reduction evaluation index are as follows:
Z＝ω 1 ×rank(Z1)+ω 2 ×rank(Z2)
wherein Z is an evaluation index of comprehensive energy conservation and emission reduction, the smaller Z is, the better comprehensive energy conservation and emission reduction effect is shown, and omega is 1 The coefficient of the investment energy-saving importance degree is constant and is not less than 0 and not more than omega 1 ≤1，ω 2 The coefficient of importance of investment emission reduction is constant and is not less than 0 and not more than omega 2 1 or less, and omega 1 +ω 2 =1,rank (Z1) represents ranking of investment energy saving rate, rank (Z2) represents ranking of investment emission reduction rate.
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