CN115234332B - Comprehensive energy system based on carbon dioxide - Google Patents
Comprehensive energy system based on carbon dioxide Download PDFInfo
- Publication number
- CN115234332B CN115234332B CN202210691691.9A CN202210691691A CN115234332B CN 115234332 B CN115234332 B CN 115234332B CN 202210691691 A CN202210691691 A CN 202210691691A CN 115234332 B CN115234332 B CN 115234332B
- Authority
- CN
- China
- Prior art keywords
- subsystem
- power
- energy
- carbon dioxide
- power circulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 34
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 34
- 238000005057 refrigeration Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 description 24
- 238000004458 analytical method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 7
- 239000002803 fossil fuel Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000013529 heat transfer fluid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005008 domestic process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000012932 thermodynamic analysis Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
- F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Inorganic Chemistry (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a comprehensive energy system based on carbon dioxide, which belongs to the field of comprehensive energy systems, and comprises: solar PTC subsystem, supercritical carbon dioxide based power cycle subsystem, critical carbon dioxide power cycle subsystem, cascade refrigeration subsystem and PEM electrolyzer. The supercritical carbon dioxide-based power circulation subsystem is connected with the solar PTC subsystem, the supercritical carbon dioxide-based power circulation subsystem is connected with the supercritical carbon dioxide-based power circulation subsystem, the cascade refrigeration subsystem is respectively connected with the supercritical carbon dioxide-based power circulation subsystem and the supercritical carbon dioxide power circulation subsystem, and the PEM electrolytic tank is respectively connected with the supercritical carbon dioxide-based power circulation subsystem and the supercritical carbon dioxide power circulation subsystem. The invention improves the energy efficiency and the fire efficiency of the comprehensive energy system.
Description
Technical Field
The invention relates to the field of comprehensive energy systems, in particular to a comprehensive energy system based on carbon dioxide.
Background
Fossil fuels are critical in power generation, refrigeration, heating, and other everyday life applications. Traditionally, power is generated by large power plants, then delivered to the grid and finally to the end user. Similarly, most of the cooling effect is produced by an electric cooler, where a conventional Vapor Compression Cycle (VCC) is used instead of electricity from the grid. Heating loads and hot water production for domestic and industrial processes may be provided by gas boilers, conventional electric heat pumps or electric heaters. All of these processes are based on separate production systems, which have the disadvantages of high carbon emissions and low fossil fuel utilization. The widespread integration of these systems in global energy structures has led to serious greenhouse gas emissions, leading to environmental pollution, climate change and other serious consequences. In addition, energy demands are increasing as the economies of the countries and the population grow. Thus, worldwide steering to utilize renewable energy and more efficient energy conversion systems is important, critical and mandatory.
The high energy costs are forcing many countries (especially developing countries) to utilize low grade heat as the thermal/energy source for different systems. In addition, waste heat recovery, regeneration, increasing live steam pressure and temperature, reheat and other energy saving techniques, etc. have been applied to many power plants to increase efficiency. The use of supercritical CO 2 (scco 2) gas cycles instead of steam rankine cycles (particularly coal-fired power plants) as the primary power cycle is a promising technology of great interest. In recent years, research based on the sCO 2 Brayton cycle has emerged and these systems have been evaluated both thermodynamically and economically. For improved design, the solar-driven economic analysis report of fire, energy and fire for the power cycle of the sCO 2 proposed by Abid et al showed total energy and fire efficiencies of 30.37% and 32.7%, respectively. Efficiency is improved by 11.6% compared to a similarly configured conventional system.
Supercritical CO 2 can also be used as a working fluid for solar thermal systems. Qiu et al analyzed the thermal performance of solar PTC with scco 2 as the heat transfer fluid at non-uniform solar flux and found that solar PTC could achieve 18.78% to 84.17% energy conversion efficiency under typical conditions.
In urban refrigeration systems, CO 2 is one of the most popular refrigerants due to its high performance and environmental sustainability. An innovative fully integrated transcritical R744 refrigeration system model is suitable for supermarkets in warm and hot climates, showing that implementation of direct refrigeration and heating based on carbon dioxide would reduce energy savings by 33.3% per year. Furthermore, with respect to energy consumption, the annual performance of supermarket refrigeration systems using differently configured CO 2 refrigerants suggests that by using CO 2 for different refrigeration purposes, the energy consumption of the facility can be reduced by 8.5%. In all of these studies, the use of CO 2 in refrigeration systems has proven viable.
The two most common low temperature power cycles are the ORC and Kalina cycles, however, the use of transcritical CO 2 is another viable option. By thermal economic analysis of one transcritical CO 2 power cycle, and comparison with the thermal economy of Kalina cycle and ORC low temperature heat source applications, the net power of the CO 2 cycle was found to be the largest of the three cycles.
While research is being conducted on the transcritical and supercritical applications of CO 2 in different power and refrigeration systems, there is still room in the current research for the integrality and performance of these individual cycle combinations for polygeneration purposes. In the development of polygeneration systems in existing research, the thermodynamic compatibility of the different cycles is the basis for the development of these systems.
In summary, the existing energy system has the problems of low total energy and fire efficiency due to high carbon emission and low fossil fuel utilization, and although some independent cycle combinations in the prior art can improve the total energy and fire efficiency of the energy system, the energy efficiency and fire efficiency cannot be improved well when the system is used in a polygeneration system.
Disclosure of Invention
The invention aims to provide a comprehensive energy system based on carbon dioxide, which aims to solve the problem of low energy efficiency and fire efficiency when a single circulation combination is used for a poly-generation system in the prior art.
In order to achieve the above object, the present invention provides the following solutions:
a carbon dioxide-based integrated energy system comprising: a solar PTC subsystem, a sCO 2 -based power cycle subsystem, a critical CO 2 power cycle subsystem, a cascade refrigeration subsystem, and a PEM electrolyzer;
the solar PTC subsystem is used for collecting solar energy and converting the solar energy into heat energy;
The power circulation subsystem based on the sCO 2 is connected with the solar PTC subsystem, the power circulation subsystem based on the sCO 2 generates power by utilizing the heat energy and circulates the heat energy, and part of the heat energy is input to the critical CO 2 power circulation subsystem;
The critical CO 2 power circulation subsystem is connected with the sCO 2 -based power circulation subsystem, and the critical CO 2 power circulation subsystem utilizes part of the heat energy to generate power;
The cascade refrigeration subsystem is respectively connected with the sCO 2 -based power circulation subsystem and the critical CO 2 power circulation subsystem, and is used for refrigerating according to the power generated by the sCO 2 -based power circulation subsystem and the critical CO 2 power circulation subsystem;
The PEM electrolyzer is respectively connected with the power circulation subsystem based on sCO 2 and the critical CO 2 power circulation subsystem, and is used for preparing hydrogen according to the power generated by the power circulation subsystem based on sCO 2 and the critical CO 2 power circulation subsystem.
Optionally, the power circulation subsystem based on the scco 2 includes: a first compressor, a high pressure turbine, a low pressure turbine, a heat source, and a reheater;
One end of the heat source is connected with the first pressure device, the other end of the heat source is connected with the high-pressure turbine, and the first pressure device is connected with the high-pressure turbine; one end of the reheater is connected with the high-pressure turbine, the other end of the reheater is connected with the low-pressure turbine, and the high-pressure turbine is connected with the low-pressure turbine.
Optionally, a heat exchanger is also included; the critical CO 2 power cycle subsystem is connected with the scco 2 -based power cycle subsystem through the heat exchanger;
One end of the heat exchanger is connected with the first pressure device, and the other end of the heat exchanger is connected with the low-pressure turbine.
Optionally, the critical CO 2 power cycle subsystem includes: a pump, a turbine, and a first condenser;
one end of the pump is connected with one end of the heat exchanger, the other end of the pump is connected with the first condenser, the first condenser is connected with the turbine, and the turbine is connected with the other end of the heat exchanger.
Optionally, the cascade refrigeration subsystem comprises a high-temperature circulation unit and a low-temperature circulation unit;
the high-temperature circulating unit is connected with the low-temperature circulating unit through a cascade heat exchanger.
Optionally, the high-temperature circulation unit comprises a second pressure device, a second condenser and a first valve which are sequentially connected; the low-temperature circulating unit comprises a third pressure device, an evaporator and a second valve which are connected in sequence;
The second pressure device, the first valve, the third pressure device and the second valve are all connected with the cascade heat exchanger;
the second and third presses are both connected to the turbine.
Optionally, the device also comprises a hot water chamber;
The hot water chamber is connected with the power circulation subsystem based on the sCO 2 through the heat exchanger; the hot water chamber comprises a water inlet and a water outlet, and is used for preparing hot water.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
According to the comprehensive energy system based on carbon dioxide, through integrating the solar PTC subsystem, the power circulation subsystem based on sCO 2, the critical CO 2 power circulation subsystem, the cascade refrigeration subsystem, the PEM electrolytic tank and other subsystems, CO 2 is adopted as a main working fluid, and the comprehensive thermodynamic modeling program is adopted to analyze the overall performance of the comprehensive energy system based on carbon dioxide and the thermodynamic performance of each subsystem, the comprehensive energy system based on carbon dioxide is shown to improve the energy efficiency and the fire efficiency of the comprehensive energy system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a carbon dioxide-based integrated energy system provided by the present invention;
FIG. 2 is a bar graph of energy efficiency and fire efficiency for various subsystems of the integrated energy system;
FIG. 3 is a graph of the mass flow of solar PTC versus thermal energy and fluid temperature;
FIG. 4 is a graph of energy efficiency for different solar PTC mass flows;
FIG. 5 is a graph of thermal energy input/output and power generation as a function of overall solar irradiance;
FIG. 6 is a graph of the effect of different solar radiation on fluid output temperature and solar PTC thermal efficiency;
FIG. 7 is a graph of the fire performance of CRS, HWT and overall system at various ambient temperatures;
FIG. 8 is a graph of fire performance of a subsystem as a function of ambient temperature.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a comprehensive energy system based on carbon dioxide, which solves the problems of low power generation capacity and low energy (fire) efficiency of the comprehensive energy system based on CO 2 and realizes thermodynamic calculation and quantitative research of the comprehensive energy system based on CO 2.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Fig. 1 is a structural diagram of a comprehensive energy system based on carbon dioxide, which is provided by the present invention, as shown in fig. 1, the comprehensive energy system based on carbon dioxide includes: solar PTC subsystems (parabolic trough collectors), sCO 2 -based power circulation subsystems, critical CO 2 power circulation subsystems, cascade refrigeration subsystems, PEM electrolysers, hot water chambers, heat exchangers, and cascade heat exchangers.
The solar PTC subsystem is used to collect solar energy and convert the solar energy into thermal energy. In practice, in a solar PTC subsystem, solar energy is concentrated onto a collector tube by a curved parabolic trough reflector, the heat transfer fluid flowing through the tube increases in temperature and transfers thermal energy to other subsystems.
The power circulation subsystem based on the sCO 2 is connected with the solar PTC subsystem, the power circulation subsystem based on the sCO 2 generates electricity by utilizing the heat energy and circulates the heat energy, and part of the heat energy is input to the critical CO 2 power circulation subsystem.
In one embodiment, the scco 2 -based power circulation subsystem includes: a first pressure vessel, a high pressure turbine, a low pressure turbine, a heat source, and a reheater.
One end of the heat source is connected with the first pressure device, the other end of the heat source is connected with the high-pressure turbine, and the first pressure device is connected with the high-pressure turbine; one end of the reheater is connected with the high-pressure turbine, the other end of the reheater is connected with the low-pressure turbine, and the high-pressure turbine is connected with the low-pressure turbine.
In practical application, the power circulation subsystem based on the sCO 2 uses the supercritical carbon dioxide sCO 2 as a working fluid as an energy transmission medium, and the sCO 2 has the characteristics of good stability and heat conductivity, and is the supercritical fluid which is most important at present.
The critical CO 2 power cycle subsystem is connected with the scco 2 -based power cycle subsystem, and the critical CO 2 power cycle subsystem utilizes a portion of the thermal energy to generate power.
In one embodiment, the critical CO 2 power cycle subsystem includes: a pump, a turbine, and a first condenser.
The critical CO 2 power cycle subsystem is connected with the scco 2 -based power cycle subsystem through the heat exchanger; one end of the heat exchanger is connected with the first pressure device, and the other end of the heat exchanger is connected with the low-pressure turbine.
One end of the pump is connected with one end of the heat exchanger, the other end of the pump is connected with the first condenser, the first condenser is connected with the turbine, and the turbine is connected with the other end of the heat exchanger.
The cascade refrigeration subsystem is respectively connected with the sCO 2 -based power circulation subsystem and the critical CO 2 power circulation subsystem, and is used for refrigerating according to power generated by the sCO 2 -based power circulation subsystem and the critical CO 2 power circulation subsystem.
In one embodiment, the cascade refrigeration subsystem comprises a high temperature circulation unit and a low temperature circulation unit; the high-temperature circulating unit is connected with the low-temperature circulating unit through a cascade heat exchanger.
In a specific embodiment, the high-temperature circulation unit comprises a second pressure device, a second condenser and a first valve which are connected in sequence; the low-temperature circulation unit comprises a third pressure device, an evaporator and a second valve which are sequentially connected. The second pressure device, the first valve, the third pressure device and the second valve are all connected with the cascade heat exchanger. The second and third presses are both connected to the turbine.
The PEM electrolyzer is respectively connected with the power circulation subsystem based on sCO 2 and the critical CO 2 power circulation subsystem, and is used for preparing hydrogen according to the power generated by the power circulation subsystem based on sCO 2 and the critical CO 2 power circulation subsystem.
The hot water chamber is connected with the power circulation subsystem based on the sCO 2 through the heat exchanger; the hot water chamber comprises a water inlet and a water outlet, and is used for preparing hot water.
The working fluid and workflow of the integrated energy system based on carbon dioxide are as follows:
Solar radiation falls on the solar PTC subsystem, and solar energy is captured and converted into thermal energy by the heat transfer fluid flowing within the PTC tube, which is used for energy input to subsequent other subsystems to generate electricity or produce hot water, etc., the direction of the arrows in fig. 1 representing the flow direction of the working fluid. The solar PTC subsystem takes CO 2 as working fluid, the generated heat energy is taken as an energy input source of sCO 2 reheating gas circulation, and compressed sCO 2 obtains energy through a heat source, so that the heat energy is transferred between a pipeline of the solar PTC subsystem and the sCO 2 -based power circulation; the scco 2 fluid is fed to a high pressure turbine to generate electricity, and in addition, the low pressure scco 2 is reheated by a reheater and then sent to the low pressure turbine in one portion to generate more electricity and returned to the thermal collecting piping of the solar PTC subsystem for energy collection again. The scco 2 still has a high energy after power generation, so most of the scco 2 passes through the heat exchanger as a heat source for critical CO 2 power cycle. In the heat exchanger, the pressurized critical CO 2 receives heat and then sends it to the turbine for power generation. The fluid exiting the turbine is condensed in a first condenser and then sent to a pump for cyclic reciprocation. A portion of the heat in the heat exchanger is also sent to the hot water chamber to produce hot water. The power generated by the integrated energy system can be used for three different purposes, most (75%) of the power will be sent to the grid, some (10%) of the power will be used for hydrogen generation by Proton Exchange Membrane (PEM) electrolyzer, which can maximize the power generation and allow the remaining power (15%) of the other subsystems integrated in the integrated energy system to generate refrigeration effect by Cascade Refrigeration Subsystem (CRS). CRS consists of two independent loops: high Temperature Cycle (HTC) and Low Temperature Cycle (LTC). CRS uses CO 2 and ammonia (NH 3) as working fluids, low temperature cycle uses CO 2, and high temperature cycle uses NH 3. In the HTC, the CRS of the second condenser rejects heat, and the condensed ammonia expands in the first valve, which then produces a refrigeration effect. The evaporator of the HTC is a cascade heat exchanger, also acting as a condenser for the LTC. The CO 2 refrigerant enters the third pressure device, is compressed and is condensed in the cascade heat exchanger. The condensed CO 2 is expanded in a second valve and then passed to an evaporator that produces a refrigeration/cooling effect. Finally, a portion of the generated electricity is sent to the consumer and used to electrolyze water in a PEM electrolyzer to produce hydrogen.
In order to quantitatively study the proposed comprehensive energy system model, thermodynamic models of all subsystems are established for simulation verification. The energy and fire analyses were performed on the modeled system using a comprehensive thermodynamic modeling program (engineering equation solver), the specific modeling equations are as follows.
The thermodynamic equation used for modeling the solar PTC subsystem is shown in table 1:
TABLE 1 thermodynamic equation of solar PTC subsystem
Where pi=3.14; d o represents the major half-axis of the receiver, L represents the minor half-axis length of the receiver; d g is a major half axis of glass; w a is the aperture, W g is the glass cover diameter; t o is the output temperature, and T i is the input temperature; re is the Reynolds number of the fluid in the glass tube; nu is the nuceltet number; ρ is the density of the fluid in the glass tube, V is the wind speed, μ is the coefficient of viscosity; k is a constant; epsilon g is the emissivity of the glass, sigma is the Stefan Buttzmann constant, T g is the temperature of the glass, and T a is the ambient temperature; t r is the receiver tube temperature, ε r is the emissivity of the receiver; d i is collector diameter, h fi is convective heat transfer coefficient within the receiver; m is mass flow rate, C p is specific heat capacity; s is entropy; f r is the receiver heat dissipation factor; c r is the concentration ratio of the receiver, G b is the overall solar radiation, η r is the receiver efficiency; q s is solar energy input; t sun is the solar temperature; ΔP is the pressure differential of the fluid, ρ fluid is the density, T fluid is the temperature; h is the state enthalpy, h o is the output enthalpy, and S o is the output entropy.
And the input parameters for solar PTC subsystem design, modeling, and sizing are shown in table 2; wherein P o/Pa represents the ratio of the output pressure to the ambient pressure; epsilon r、εg is the emissivity of the receiver and glass, respectively; k is the heat conductivity coefficient, and T s is the solar temperature; c is the light concentration ratio of the heat collector, and H is the convective heat transfer coefficient; k air is the air thermal conductivity.
TABLE 2 solar PTC subsystem dimensional parameters
Other input parameters such as working fluid, turbine rated temperature/pressure, mass flow, etc. are highlighted in table 3.
Table 3 comprehensive energy subsystem input parameter table
The energy and fire analysis was performed on the system modeled by the present invention using a comprehensive thermodynamic modeling program (engineering equation solver). To study the performance and sensitivity of the integrated energy system, the following is assumed:
Temperature T 0 and pressure P 0 (table 3) are considered to be dead state characteristics of the system.
Pumps, turbines, and compressors are considered to be adiabatic.
Changes in potential and kinetic energy in the system are ignored.
The operating conditions of the system are assumed to be "steady state".
The PTC designed in the present invention is assumed to have technical properties that operate at temperatures above 800 k.
Other technical limitations of PTC at extremely high temperatures are considered to be negligible.
The triple and poly-generation systems in the prior literature and application are mostly driven by fossil fuels. In the present invention, the CO 2 emissions reduction (mitigation) effect of the system compared to some fossil fuels was analyzed. This is done by calculating the carbon emitted by different fossil fuel sources. The present invention contemplates three fossil fuel sources of coal, natural gas and petroleum, and the carbon emission factors for analysis are shown in table 4.
TABLE 4 carbon emission factor table
Compared with the prior art, the invention has the following beneficial points: a novel comprehensive energy system based on carbon dioxide is developed, the system integrates a solar PTC subsystem, an electric power circulation subsystem based on sCO 2, a critical CO 2 electric power circulation subsystem, a cascade refrigeration subsystem, a PEM (PEM) electrolytic tank, a hot water chamber and other subsystems, and analysis is carried out on the overall performance and thermodynamic performance of each subsystem, so that the result shows that the total energy and fire efficiency of the comprehensive energy system are improved.
The invention carries out modeling and thermodynamic analysis on the comprehensive energy system based on carbon dioxide, and researches the energy and fire performance of the comprehensive energy system.
According to the solar PTC subsystem design (table 1) and the input parameters (table 2), the solar energy absorbed by the solar PTC subsystem is 7.72MW, and 4.149MW is converted into useful heat energy at the temperature of 853.5K; as shown in fig. 2, the energy efficiency and fire efficiency of the CO 2 -based solar PTC subsystem were 53.75% and 35.63%, respectively, and the energy efficiency and fire efficiency of the scco 2 -based power cycle subsystem were 12.73% and 8.12%; the energy efficiency and the fire efficiency of the critical CO 2 power cycle subsystem are 16.17% and 5.53%, respectively, the lower fire efficiency being caused by the temperature difference between the subsystem and the environment and working fluid; 60% of the heat energy at this stage is used for transcritical power cycle, while the remaining 40% is used for hot water chamber production of hot water, calculated fire efficiency is 44%. 10% of the electrical energy generated by the power cycle is used for hydrogen production, 15% will produce refrigeration through the CRS, the refrigeration capacity is 180.7kw, and the energy and fire efficiencies of the pem electrolyzer are 60% and 20.51%.
The influence of different parameter changes on the performances of different subsystems and the overall performance of the system is checked through parameter analysis; as shown in fig. 3, the sensitivity of the system is checked using three different parameters of mass flow, total solar irradiance, and dead-state temperature of the solar PTC subsystem, where T out,PTC,MSG-1 represents the fluid output temperature of the solar PTC subsystem,Representing the output thermal energy of the solar PTC subsystem. An increase in mass flow within the solar PTC subsystem will increase the output thermal energy, but decrease the fluid output temperature; an increase in the mass flow rate of the solar PTC subsystem does not affect the energy efficiency, but significantly reduces the fire efficiency, as shown in fig. 4, where η en,PTC,MSG-1 represents the energy efficiency of the solar PTC subsystem and η ex,PTC,MSG-1 represents the fire efficiency of the solar PTC subsystem, since the fire performance depends on the temperature of the fluid in the system, the fluid output temperature decreases, and the fire efficiency decreases accordingly.
In addition, the sensitivity of the performance of the solar PTC subsystem to solar irradiance changes was examined, as shown in fig. 5,6, wherein,Representing the output heat energy of the solar PTC subsystem,/>Representing the output heat energy of the solar PTC subsystem, MSG-1 Electricity,Prod representing the electrical energy production of the solar PTC subsystem, η en,PTC,MSG-1 representing the energy efficiency of the solar PTC subsystem, η ex,PTC,MSG-1 representing the fire efficiency of the solar PTC subsystem, T out,PTC,MSG-1 representing the fluid output temperature of the solar PTC subsystem, the energy efficiency of the solar PTC subsystem increasing by 56% (from 16.74% to 72.25%) when the solar irradiation is increased from 500W/m 2 to 1500W/m 2.
Ambient temperature, also known as the dead temperature of the thermodynamic system, is one of the factors that affects the greatest variability in availability of the integrated energy system. The sensitivity of the system to the dead state temperature change is researched, and the result is shown in fig. 7, wherein eta ex,CRS,MSG-1 represents the energy efficiency of the solar PTC subsystem, eta ex,HWT,MSG-1 represents the fire efficiency of the solar PTC subsystem, eta ex,MSG-1,with,PTC represents the overall fire efficiency of the solar PTC subsystem, and it can be seen that the change of the environment temperature has little influence on the overall fire efficiency, but can influence the fire performance of different subsystems (CRS, HWT); further, as the ambient temperature increases, the fire efficiency of the scco 2 power cycle, critical power cycle, and PEM electrolyzer decreases, as shown in fig. 8, where η ex,PEM,MSG-1 represents the fire efficiency of the PEM electrolyzer, η ex,sCO2,MSG-1 represents the fire efficiency of the scco 2 power cycle subsystem, and η tCO2,MSG-1 represents the fire efficiency of the critical power cycle subsystem.
Although the application has been described herein with reference to the embodiments thereof, it should be understood that other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various modifications may be made to the modeling and analysis of the integrated energy system within the scope of the present disclosure, drawings, and claims. In addition to system modeling and analysis improvements, other uses will be apparent to those skilled in the art.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (7)
1. A carbon dioxide-based integrated energy system, comprising: a solar PTC subsystem, a sCO 2 -based power cycle subsystem, a critical CO 2 power cycle subsystem, a cascade refrigeration subsystem, and a PEM electrolyzer;
the solar PTC subsystem is used for collecting solar energy and converting the solar energy into heat energy;
The power circulation subsystem based on the sCO 2 is connected with the solar PTC subsystem, the power circulation subsystem based on the sCO 2 generates power by utilizing the heat energy and circulates the heat energy, and part of the heat energy is input to the critical CO 2 power circulation subsystem;
The critical CO 2 power circulation subsystem is connected with the sCO 2 -based power circulation subsystem, and the critical CO 2 power circulation subsystem utilizes part of the heat energy to generate power;
The cascade refrigeration subsystem is respectively connected with the sCO 2 -based power circulation subsystem and the critical CO 2 power circulation subsystem, and is used for refrigerating according to the power generated by the sCO 2 -based power circulation subsystem and the critical CO 2 power circulation subsystem;
The PEM electrolyzer is respectively connected with the power circulation subsystem based on sCO 2 and the critical CO 2 power circulation subsystem, and is used for preparing hydrogen according to the power generated by the power circulation subsystem based on sCO 2 and the critical CO 2 power circulation subsystem.
2. The carbon dioxide-based integrated energy system of claim 1, wherein the scco 2 -based power circulation subsystem comprises: a first compressor, a high pressure turbine, a low pressure turbine, a heat source, and a reheater;
One end of the heat source is connected with the first pressure device, the other end of the heat source is connected with the high-pressure turbine, and the first pressure device is connected with the high-pressure turbine; one end of the reheater is connected with the high-pressure turbine, the other end of the reheater is connected with the low-pressure turbine, and the high-pressure turbine is connected with the low-pressure turbine.
3. The integrated carbon dioxide-based energy system of claim 2, further comprising a heat exchanger; the critical CO 2 power cycle subsystem is connected with the scco 2 -based power cycle subsystem through the heat exchanger;
One end of the heat exchanger is connected with the first pressure device, and the other end of the heat exchanger is connected with the low-pressure turbine.
4. The carbon dioxide-based integrated energy system of claim 3, wherein the critical CO 2 power cycle subsystem comprises: a pump, a turbine, and a first condenser;
one end of the pump is connected with one end of the heat exchanger, the other end of the pump is connected with the first condenser, the first condenser is connected with the turbine, and the turbine is connected with the other end of the heat exchanger.
5. The carbon dioxide-based integrated energy system of claim 4, wherein the cascade refrigeration subsystem comprises a high temperature circulation unit and a low temperature circulation unit;
the high-temperature circulating unit is connected with the low-temperature circulating unit through a cascade heat exchanger.
6. The integrated carbon dioxide-based energy system of claim 5, wherein the high temperature circulation unit comprises a second pressure vessel, a second condenser, and a first valve connected in sequence; the low-temperature circulating unit comprises a third pressure device, an evaporator and a second valve which are connected in sequence;
The second pressure device, the first valve, the third pressure device and the second valve are all connected with the cascade heat exchanger;
the second and third presses are both connected to the turbine.
7. The integrated carbon dioxide-based energy system of claim 3, further comprising a hot water chamber;
The hot water chamber is connected with the power circulation subsystem based on the sCO 2 through the heat exchanger; the hot water chamber comprises a water inlet and a water outlet, and is used for preparing hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691691.9A CN115234332B (en) | 2022-06-17 | 2022-06-17 | Comprehensive energy system based on carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691691.9A CN115234332B (en) | 2022-06-17 | 2022-06-17 | Comprehensive energy system based on carbon dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115234332A CN115234332A (en) | 2022-10-25 |
| CN115234332B true CN115234332B (en) | 2024-05-03 |
Family
ID=83669444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210691691.9A Active CN115234332B (en) | 2022-06-17 | 2022-06-17 | Comprehensive energy system based on carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115234332B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101027460A (en) * | 2004-09-29 | 2007-08-29 | 埃尔汤姆企业公司 | Methods of generating exergy |
| CN109915219A (en) * | 2019-01-29 | 2019-06-21 | 西安交通大学 | The energy supplying system and method for integrated fuel cell and supercritical carbon dioxide solar energy thermal-power-generating |
| WO2020036755A1 (en) * | 2018-08-13 | 2020-02-20 | Icarus Rt, Inc. | System and method for solar panel heat energy recovery, heat energy storage and generation from the stored heat energy |
| WO2020065496A1 (en) * | 2018-09-24 | 2020-04-02 | Saipem S.P.A. | High efficiency thermodynamic cycle in power applications |
| CN112290536A (en) * | 2020-09-23 | 2021-01-29 | 电子科技大学 | Online scheduling method of electricity-heat comprehensive energy system based on near-end strategy optimization |
| US10907512B1 (en) * | 2018-05-02 | 2021-02-02 | Kazuhiko NAGASHIMA | Electric power generating system |
| CN113389699A (en) * | 2020-03-11 | 2021-09-14 | 张建城 | Solar energy and wind energy and ammonia oxygen gas complementary circulation thermal power generation device |
| WO2022046726A1 (en) * | 2020-08-24 | 2022-03-03 | Eisenhaure David B | Efficient power plant using a high temperature heat source |
| CN114174660A (en) * | 2019-05-21 | 2022-03-11 | 通用电气公司 | Energy conversion apparatus and system |
| CN114623608A (en) * | 2022-03-18 | 2022-06-14 | 成都理工大学 | Concentrating photovoltaic thermal system for poly-generation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8596075B2 (en) * | 2009-02-26 | 2013-12-03 | Palmer Labs, Llc | System and method for high efficiency power generation using a carbon dioxide circulating working fluid |
| US8904791B2 (en) * | 2010-11-19 | 2014-12-09 | General Electric Company | Rankine cycle integrated with organic rankine cycle and absorption chiller cycle |
| US9500185B2 (en) * | 2014-08-15 | 2016-11-22 | King Fahd University Of Petroleum And Minerals | System and method using solar thermal energy for power, cogeneration and/or poly-generation using supercritical brayton cycles |
| US9695715B2 (en) * | 2014-11-26 | 2017-07-04 | General Electric Company | Electrothermal energy storage system and an associated method thereof |
| US10577248B2 (en) * | 2016-05-24 | 2020-03-03 | Harper Biotech LLC | Methods and systems for large scale carbon dioxide utilization from Lake Kivu via a CO2 industrial utilization hub integrated with electric power production and optional cryo-energy storage |
| MX2017016744A (en) * | 2017-12-19 | 2019-06-20 | Centro De Investigacion En Mat Avanzados S C | Cogeneration system for integration into solar water heating systems. |
-
2022
- 2022-06-17 CN CN202210691691.9A patent/CN115234332B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101027460A (en) * | 2004-09-29 | 2007-08-29 | 埃尔汤姆企业公司 | Methods of generating exergy |
| US10907512B1 (en) * | 2018-05-02 | 2021-02-02 | Kazuhiko NAGASHIMA | Electric power generating system |
| WO2020036755A1 (en) * | 2018-08-13 | 2020-02-20 | Icarus Rt, Inc. | System and method for solar panel heat energy recovery, heat energy storage and generation from the stored heat energy |
| WO2020065496A1 (en) * | 2018-09-24 | 2020-04-02 | Saipem S.P.A. | High efficiency thermodynamic cycle in power applications |
| CN109915219A (en) * | 2019-01-29 | 2019-06-21 | 西安交通大学 | The energy supplying system and method for integrated fuel cell and supercritical carbon dioxide solar energy thermal-power-generating |
| CN114174660A (en) * | 2019-05-21 | 2022-03-11 | 通用电气公司 | Energy conversion apparatus and system |
| CN113389699A (en) * | 2020-03-11 | 2021-09-14 | 张建城 | Solar energy and wind energy and ammonia oxygen gas complementary circulation thermal power generation device |
| WO2022046726A1 (en) * | 2020-08-24 | 2022-03-03 | Eisenhaure David B | Efficient power plant using a high temperature heat source |
| CN112290536A (en) * | 2020-09-23 | 2021-01-29 | 电子科技大学 | Online scheduling method of electricity-heat comprehensive energy system based on near-end strategy optimization |
| CN114623608A (en) * | 2022-03-18 | 2022-06-14 | 成都理工大学 | Concentrating photovoltaic thermal system for poly-generation |
Non-Patent Citations (7)
| Title |
|---|
| Milad Nouri ; Morteza Miansari ; Bahram Ghorbani.Exergy and economic analyses of a novel hybrid structure for simultaneous production of liquid hydrogen and carbon dioxide using photovoltaic and electrolyzer systems.Journal of Cleaner Production.2020,259第1-22页. * |
| Thermoeconomic analysis of technical greenhouse warming mitigation;R. Kümmel and H.-M. Groscurth and U. Schüβler;International Journal of Hydrogen Energy;19921231;17(4);第293-298页 * |
| 基于SOFC/GT和跨临界CO_2联合循环系统热力性能研究;蒙青山;孔令健;张涛;刘海;韩吉田;于泽庭;;太阳能学报;20171028(10);第166-172页 * |
| 太阳能热发电超临界CO_2布雷顿循环性能理论研究;马月婧;潘利生;魏小林;李锐;史维秀;;太阳能学报;20180528(05);第89-96页 * |
| 市场机制下光伏/小水电/抽水蓄能电站系统容量优化配置;罗仕华;胡维昊;黄琦;韩晓言;陈哲;;电工技术学报;20200710(13);第88-100页 * |
| 超临界流体在林产工业中的应用;钱学仁，李坚;世界林业研究;19960215(01);第28-34页 * |
| 采用二氧化碳工质低品位热源驱动的郎肯循环发电实验研究;赵戈平;李勇;EIKEVIK Trygve Magne;陈俊超;;制冷技术;20151015(05);第5-10页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115234332A (en) | 2022-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bellos et al. | Parametric analysis and optimization of a solar driven trigeneration system based on ORC and absorption heat pump | |
| Ghaebi et al. | A novel trigeneration system using geothermal heat source and liquefied natural gas cold energy recovery: Energy, exergy and exergoeconomic analysis | |
| Tempesti et al. | Thermodynamic analysis of two micro CHP systems operating with geothermal and solar energy | |
| Bamisile et al. | Comparative performance analysis of solar powered supercritical-transcritical CO2 based systems for hydrogen production and multigeneration | |
| Mohammadi et al. | Thermodynamic analysis of hybrid cycles based on a regenerative steam Rankine cycle for cogeneration and trigeneration | |
| Ghorbani et al. | Parametric study and optimization of a novel geothermal-driven combined cooling, heating, and power (CCHP) system | |
| Yilmaz et al. | Thermodynamic investigation of a concentrating solar collector based combined plant for poly-generation | |
| Zhang et al. | Thermodynamic analysis of the CO2‐based Rankine cycle powered by solar energy | |
| Nasrabadi et al. | Techno-economic analysis and optimization of a proposed solar-wind-driven multigeneration system; case study of Iran | |
| Toker et al. | Development of a sustainable multi-generation system with re-compression sCO2 Brayton cycle for hydrogen generation | |
| Chen et al. | Energetic and exergetic analysis of a solar-assisted combined power and cooling (SCPC) system with two different cooling temperature levels | |
| Yilmaz et al. | Modeling and parametric analysis of a new combined geothermal plant with hydrogen generation and compression for multigeneration | |
| Hossin et al. | Performance evaluation for a 10 kW solar organic Rankine cycle power system to operate in the UK climate conditions | |
| Tian et al. | 4E analyses and multi-objective optimization for an innovative solar-ocean thermal energy conversion/air conditioning system | |
| Yang et al. | Coupling effect of evaporation and condensation processes of organic Rankine cycle for geothermal power generation improvement | |
| Chen et al. | Performance Analysis and Evaluation of a Supercritical CO 2 Rankine Cycle Coupled with an Absorption Refrigeration Cycle | |
| Baniasad Askari et al. | Investigation of an ejector-cascaded vapor compression–absorption refrigeration cycle powered by linear Fresnel and organic Rankine cycle | |
| Khalid et al. | Thermodynamic assessment of a new PTC operated polygeneration system for fresh water, cooling, electricity and hydrogen production for a residential community | |
| Li et al. | Component exergy analysis of solar powered transcritical CO 2 Rankine cycle system | |
| CN115234332B (en) | Comprehensive energy system based on carbon dioxide | |
| Wang et al. | Flexible PVT-ORC hybrid solar-biomass cogeneration systems: The case study of the University Sports Centre in Bari, Italy | |
| Li et al. | Comparative analysis and optimization of waste-heat recovery systems with large-temperature-gradient heat transfer | |
| Pal et al. | THERMODYNAMIC ANALYSIS OF SOLAR POWERED COMBINED CYCLE EMPLOYING S-CO 2 CYCLE AND RANKINE CYCLE | |
| Yilmaz et al. | Development and performance analysis of a solar-powered multigeneration plant with a reheat CO2 cycle for sustainable outputs | |
| Kara | Evaluation of solar source and ground cooling performance in three different organic rankine cycle (ORC) configurations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |