CN116054727A - Household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system - Google Patents
Household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system Download PDFInfo
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- CN116054727A CN116054727A CN202310108747.8A CN202310108747A CN116054727A CN 116054727 A CN116054727 A CN 116054727A CN 202310108747 A CN202310108747 A CN 202310108747A CN 116054727 A CN116054727 A CN 116054727A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 58
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000001301 oxygen Substances 0.000 claims abstract description 30
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000002834 transmittance Methods 0.000 claims 1
- 238000010411 cooking Methods 0.000 abstract description 12
- 238000005868 electrolysis reaction Methods 0.000 abstract description 12
- 239000002918 waste heat Substances 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- 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
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- 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
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
- H02S40/22—Light-reflecting or light-concentrating means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system, and belongs to the field of solar concentrating photovoltaic photo-thermal and water electrolysis hydrogen production application. The system is designed integrally with the solar light-gathering module, the photovoltaic module, the water electrolysis hydrogen production module and the like, can provide combustible gas for household cooking, and waste heat generated by the system can be used for producing household hot water. The concentrating module mainly comprises a reflecting surface and a total reflection cone, the concentrating module can collect light rays within a certain incident angle range to the surface of the photovoltaic cell, and the photovoltaic cell converts part of incident solar energy into electric energy. The electric energy generated by the photovoltaic cell is directly input to an electrode of the water electrolysis hydrogen production module for electrolyzing water to generate hydrogen and oxygen, and the generated hydrogen and oxygen are respectively stored in a hydrogen tank and an oxygen tank for users to use. In addition, the back of the photovoltaic cell is provided with a heat exchange system, and the heat exchange system can take away the waste heat generated by the photovoltaic cell and utilize the waste heat to produce household hot water.
Description
Technical Field
The invention relates to a household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system, which is a system formed by integrating a solar concentrator, a photovoltaic photo-thermal module and a water electrolysis hydrogen production module, and realizes the purpose of providing green oxyhydrogen gas and heat energy for families. Belongs to the field of solar photovoltaic photo-thermal and water electrolysis hydrogen production application.
Background
The domestic household cooking method has 4 hundred million families, and many rural families still use wood and coal as fuel, so that the cooking method has serious pollution. Although town households use natural gas for cooking, combusting natural gas also generates significant amounts of greenhouse gases. In recent years, china has proposed the dual-carbon targets of carbon neutralization and carbon peaking. Therefore, if the carbon emissions of household energy can be reduced from the household level, it is certainly very interesting to use clean energy instead of some household cooking energy.
Outdoor solar stoves have been widely used in rural areas. However, since there are many inconveniences in cooking in an outdoor environment, the mode of cooking in the sun is slowly exited from the history stage as the living standard of people is improved. The idea of cooking with solar energy is worth affirming, for which the learner has proposed the concept of an indoor solar cooker. At present, the technical ideas of indoor solar stoves are mainly divided into two types, namely direct heat supply, and the indoor solar stoves have the characteristic of high heat collection efficiency; the other type is direct power supply, and has the characteristic of flexible use. Direct heating mode is still the main form of indoor solar cooker because of the high cost of the high capacity energy storage battery required for direct power supply.
Indoor solar cookers generally comprise three parts: the system comprises a solar condenser, an energy accumulator and an energy release device at the user side. Indoor solar stoves with stored energy are reasonable in nature, since our cooking is only done in the morning, in the evening, typically only about one hour. But sunlight is in the sky for eight more hours. If more than 1 kw of power is required to meet the cooking heat energy on site, a large condenser is required. But if the energy is accumulated, such a large concentrator is not needed, reducing the cost of concentrating. Researchers have conducted extensive research on solar indoor solar furnaces, but indoor solar furnaces have not yet gained widespread popularity, and the reason for this is that the current indoor solar furnaces still have a number of serious problems: (1) Accurate sun tracking is required, and a tracking system is easy to fail, so that a common household is not easy to maintain, and a user is daunting. (2) At present, an indoor solar furnace which can only provide high-temperature heat energy (about 180 ℃) cannot be used as a traditional household stove, and only one system can be additionally matched, particularly, the heat energy of more than 250 ℃ is needed for cooking, but the conventional solar furnace cannot provide. (3) The existing phase-change energy storage material has high price and limited service life, and is more disadvantageous in that the heat transfer rate is limited, and high-power firepower cannot be provided in time. In a word, the problem of the existing indoor solar furnace is still quite outstanding, and the popularization and the application of the solar furnace are not facilitated.
In view of this, this patent provides a domestic solar concentrating photovoltaic-photo-thermal-hydrogen production cogeneration system, and its basic thinking is that solar concentrating and solar photovoltaic power generation are combined together, and the electric power that produces is directly used for electrolysis water hydrogen production and oxygen, utilizes oxyhydrogen mixed gas to mix into partial air again, provides the gas for family's culinary art. The waste heat generated by solar energy condensation can also be used for producing household hot water. The patent turns over the thought of the traditional solar furnace, and provides the hydrogen and oxygen fuel instead of high-temperature heat energy for the user. Therefore, the household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system can be seamlessly connected with a natural gas stove used at present in a household. The oxyhydrogen gas generated by the system is directly stored in a gas storage tank at the rear part of the system, so that high-quality gas can be provided for families or field operators at any time, and the oxyhydrogen gas storage tank is very suitable for families in rural areas or with roof installation spaces.
Disclosure of Invention
The invention designs a solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system based on the principles of geometrical optics and water electrolysis hydrogen production. The system is designed integrally with the solar light-gathering module, the photovoltaic module, the water electrolysis hydrogen production module and the like, can provide combustible gas for household cooking, and can also be used for producing household hot water by waste heat generated by the system. The light-condensing module mainly comprises a parabolic reflecting surface (a composite parabolic surface) and a total reflection cone, the light-condensing module can converge light rays within a certain incident angle range to the surface of a photovoltaic cell, and the photovoltaic cell converts part of incident solar energy into electric energy. The electric energy generated by the photovoltaic cell is directly input to an electrode of the water electrolysis hydrogen production module for electrolyzing water to produce hydrogen and oxygen, and the generated hydrogen and oxygen are respectively stored in a hydrogen tank and an oxygen tank for a user to use. In addition, the back of the photovoltaic cell is provided with a heat exchange system, and the heat exchange system can take away the waste heat generated by the photovoltaic cell and utilize the waste heat to produce household hot water.
The invention is realized by the following technical scheme:
a household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system mainly structurally comprises: the solar energy hydrogen storage device comprises a light-transmitting plate (3), a reflecting surface (4), a total reflection cone (5), a photovoltaic cell (6), an electric wire (7), a heat exchanger (8), a hydrogen storage tank (9), a gas pipeline (10), an oxygen storage tank (11), an electrode (12) and a waterproof plug (13).
The light-transmitting plate (3), the reflecting surface (4) and the total reflection cone (5) form a condenser with a large light receiving angle. Whether normal incidence light rays (1) or oblique incidence light rays (2) enter the system through the light-transmitting plate (3), are reflected through the reflecting surface (4), are refracted through the total reflection cone (5) and are totally reflected for a plurality of times, finally exit from the bottom surface of the total reflection cone (5), and the photovoltaic cells (6) are attached to the bottom surface of the total reflection cone (5) to directly convert converged solar energy into electric energy. The heat conducting working medium (14) is used for absorbing waste heat generated by the photovoltaic cell (6), and the heat conducting working medium (14) transmits heat energy to a user through the heat exchanger (8) so as to generate household hot water. The positive electrode and the negative electrode of the photovoltaic cell (6) are directly connected with the electrode (12) of the water electrolysis hydrogen production module respectively, hydrogen produced by water electrolysis is stored in the hydrogen storage tank (9), and produced oxygen is stored in the oxygen storage tank (11). When the hydrogen in the hydrogen storage tank (9) and the oxygen in the oxygen storage tank (11) are mixed in the gas pipeline (10) according to the proportion, the mixture is the gas.
The beneficial effects are that:
(1) The solar concentrating module, the photovoltaic module, the water electrolysis hydrogen production module and other modules are integrally designed, and the electric energy generated by the system can be directly used for electrolyzing water to produce hydrogen and oxygen, and the hydrogen and the oxygen are mixed to obtain fuel gas.
(2) The total reflection cone is designed, so that the light receiving angle of the condenser is effectively increased, and tracking of the sun is avoided.
The photovoltaic cells are attached to the bottoms of the total reflection cones, and can directly convert concentrated solar energy into electric energy, so that the system is ensured to have higher energy conversion efficiency.
(3) The system has no pollutant emission, the condenser does not need to track the sun, the device has compact structure and low cost, and the system has better application prospect.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system;
FIG. 2 is a line-focusing domestic solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system;
wherein, 1-normal incidence light; 2-oblique incident light; 3-a light-transmitting plate; 4-reflecting surface; 5-total reflection cone; 6-a photovoltaic cell; 7-an electric wire; 8-a heat exchanger; 9-a hydrogen storage tank; 10-a gas pipeline; 11-an oxygen storage tank; 12-electrode; 13-waterproof plugs; 14-a heat conducting working medium; 15-total reflection light; 16-refract light.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and the implementation examples.
Fig. 1 is a schematic structural diagram of a domestic solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system of the invention. The main structure comprises: the solar energy hydrogen storage device comprises a light-transmitting plate (3), a reflecting surface (4), a total reflection cone (5), a photovoltaic cell (6), an electric wire (7), a heat exchanger (8), a hydrogen storage tank (9), a gas pipeline (10), an oxygen storage tank (11), positive and negative electrodes (12) and a waterproof plug (13). The connection relation of the parts is that the light-transmitting plate (3) is positioned at the top of the reflecting surface (4), the total reflection cone (5) is positioned at the lower part of the reflecting surface (4), the light-transmitting plate (3), the reflecting surface (4) and the total reflection cone (5) form a condenser, the photovoltaic cell (6) is attached at the bottom of the total reflection cone (5), the back of the photovoltaic cell (6) is provided with a cavity of the heat conducting working medium (14), the heat exchanger (8) is immersed in the heat conducting working medium (14), the photovoltaic cell (6) is connected with the positive electrode and the negative electrode (12) through the electric wire (7), the waterproof plug (13) is positioned at the top of the electrode groove to prevent the leakage of the electrolyzed water, the hydrogen generated by the electrolyzed water of the negative electrode is stored in the hydrogen storage tank (9), the oxygen generated by the electrolyzed water of the positive electrode is stored in the oxygen storage tank (11), and the hydrogen and the oxygen are finally mixed in the gas pipeline (10) to form gas.
The operation principle of the household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system is as follows: when normal incidence light rays (1) or oblique incidence light rays (2) pass through the light-transmitting plate (3), the normal incidence light rays are reflected by the reflecting surface (4) or directly enter the total reflection cone (5), then, the light rays are emitted through the lower surface of the total reflection cone (5) after refraction and multiple total reflections of the total reflection cone (5), and finally are converged on the surface of the photovoltaic cell (6), the photovoltaic cell (6) converts part of incident solar energy into electric energy, the solar energy which cannot be converted is dissipated into heat energy, the heat-conducting working medium (14) absorbs the part of dissipated heat energy, the heat exchanger (8) finally takes away the part of heat energy to be used for producing household hot water, in addition, the photovoltaic cell (6) is directly connected with the positive electrode and the negative electrode (12) in the electrolytic tank through a lead, the generated electric energy is directly electrolyzed with hydrogen and oxygen, the hydrogen produced by the electrolyzed water is stored in the hydrogen storage tank (9), and the generated oxygen is stored in the oxygen storage tank (11). When the hydrogen in the hydrogen storage tank (9) and the oxygen in the oxygen storage tank (11) are mixed in the gas pipeline (10) according to the proportion, the gas is obtained.
One example of an implementation is shown in fig. 2, which is a line-focusing type domestic solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system. And a plurality of rows of concentrating photovoltaic power generation units are formed by one or more light-transmitting plates (3), reflecting surfaces (4), total reflection cones (5) and photovoltaic cells (6), so that the electric energy output of the system is increased.
In summary, the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system is characterized by comprising the following components: the solar cell comprises a light-transmitting plate (3), a reflecting surface (4), a total reflection cone (5), a photovoltaic cell (6), an electric wire (7), a heat exchanger (8), a hydrogen storage tank (9), a gas pipeline (10), an oxygen storage tank (11), a positive electrode (12) and a negative electrode (12), and a waterproof plug (13), wherein the light-transmitting plate (3), the reflecting surface (4) and the total reflection cone (5) are sequentially connected to form a light collector, the photovoltaic cell (6) is attached to the bottom of the total reflection cone (5), a heat-conducting working medium (14) flow channel is designed on the back of the photovoltaic cell (6), the heat exchanger (8) is immersed in the heat-conducting working medium (14), the photovoltaic cell (6) is connected with the electrode (12) through the electric wire (7), the waterproof plug (13) is positioned at the top of the electrode tank to prevent leakage of electrolytic water, hydrogen generated by negative electrode electrolytic water is stored in the hydrogen storage tank (9), oxygen generated by positive electrode electrolytic water is stored in the oxygen storage tank (11), and hydrogen and oxygen finally mixed with the oxygen in the gas pipeline (10) to form gas.
2. The household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system according to claim 1 is characterized in that the total reflection cone (5) is made of materials with high refractive index and high light transmittance, the refraction and total reflection processes of the total reflection cone (5) on light rays increase the light ray receiving angle of the system, the photovoltaic cells (6) are directly attached to the bottom of the total reflection cone (5) and can directly convert concentrated solar energy into electric energy, and in addition, the electric energy generated by the photovoltaic cells (6) is directly connected with the electrode (12) for producing hydrogen by electrolyzing water, so that synchronous performance of photovoltaic power generation and hydrogen production by electrolyzing water is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310108747.8A CN116054727A (en) | 2023-02-14 | 2023-02-14 | Household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310108747.8A CN116054727A (en) | 2023-02-14 | 2023-02-14 | Household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system |
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| Publication Number | Publication Date |
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| CN116054727A true CN116054727A (en) | 2023-05-02 |
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| CN202310108747.8A Pending CN116054727A (en) | 2023-02-14 | 2023-02-14 | Household solar concentrating photovoltaic-photo-thermal-hydrogen production co-production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116632879A (en) * | 2023-07-24 | 2023-08-22 | 合肥工业大学 | Energy storage power generation system and method for producing hydrogen by utilizing photovoltaic photo-thermal electrolysis of water |
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2023
- 2023-02-14 CN CN202310108747.8A patent/CN116054727A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116632879A (en) * | 2023-07-24 | 2023-08-22 | 合肥工业大学 | Energy storage power generation system and method for producing hydrogen by utilizing photovoltaic photo-thermal electrolysis of water |
| CN116632879B (en) * | 2023-07-24 | 2023-09-22 | 合肥工业大学 | Energy storage power generation system and method for producing hydrogen by utilizing photovoltaic photo-thermal electrolysis of water |
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