CN113340007B - Variable cutoff band spectrum distribution method for photovoltaic-photothermal chemical complementary system - Google Patents
Variable cutoff band spectrum distribution method for photovoltaic-photothermal chemical complementary system Download PDFInfo
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- 238000001228 spectrum Methods 0.000 title claims abstract description 58
- 239000000126 substance Substances 0.000 title claims abstract description 25
- 230000000295 complement effect Effects 0.000 title claims abstract description 15
- 238000009826 distribution Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 62
- 230000003595 spectral effect Effects 0.000 claims description 20
- 238000003166 chemical complementation Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
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- 238000002360 preparation method Methods 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- 230000015572 biosynthetic process Effects 0.000 description 5
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- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
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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
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
- F24S70/225—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption for spectrally selective absorption
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/60—Details of absorbing elements characterised by the structure or construction
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- 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
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
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- 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
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- 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
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
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- 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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- 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
- Y02E10/44—Heat exchange systems
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- 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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
-
- 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
- Y02E10/60—Thermal-PV hybrids
Abstract
The invention discloses a variable cut-off band spectrum distribution method of a photovoltaic-photothermal chemical complementary system. The spectrum frequency divider distributes solar spectrum, distributes partial short wave sunlight to the photovoltaic cell, and distributes the sunlight of the rest wave bands to the thermochemical reaction for utilization. The solar spectrum is distributed in a way that the change of the thermochemical reaction on the solar energy requirement is fully considered, the frequency divider has a changed cut-off wave band, and at the position with high solar energy requirement on the thermochemical reaction, the corresponding frequency divider has a smaller cut-off wave band and can distribute more solar energy to the part of reactors; at the position where the demand of the thermochemical reaction on solar energy is reduced, the cut-off band corresponding to the frequency divider is enlarged, the solar energy distributed to the part of the reactor is reduced, and the solar energy distributed to the corresponding photovoltaic cell is increased, so that the output power of the photovoltaic cell is improved. Solar energy input on the thermochemical reactor is matched with the thermochemical reaction energy requirement, so that solar energy loss is reduced, and the solar energy utilization efficiency is improved.
Description
Technical Field
The invention belongs to the field of solar energy utilization, and particularly relates to a variable cutoff band spectrum distribution method of a photovoltaic-photothermal chemical complementary system.
Background
At present, the common utilization modes of solar energy mainly comprise photovoltaic conversion, photothermal conversion and photothermal chemical conversion. In order to improve the solar energy utilization efficiency, a spectral frequency division technology is mostly adopted to couple photovoltaic conversion and photothermal conversion or photothermal chemical conversion together to form a composite system. The solar photovoltaic-photothermal chemical complementary system couples the photovoltaic cell and the thermochemical reaction together to form a composite system, and the spectrum frequency divider divides and distributes the solar spectrum, so that the photovoltaic cell and the thermochemical reaction can respectively utilize the sunlight of different wave bands to respectively convert low-grade solar energy into high-grade electric energy and chemical energy, thereby realizing the high-efficiency utilization of full-spectrum solar energy and improving the utilization efficiency of the solar energy. For a solar photovoltaic-photothermal chemical complementary system adopting spectrum frequency division, the coupling effect of a photovoltaic cell and a thermochemical reaction is determined by solar spectrum distribution, and the utilization efficiency of the composite system on solar energy can be improved only by reasonable spectrum distribution.
In the conventional spectrum distribution method, the spectrum frequency divider has a single cut-off waveband, and the spectrum distribution waveband and the energy distribution proportion of all parts of the spectrum frequency divider are the same, so that the distribution of the solar energy distributed to the thermochemical reactor in the flowing direction of the reactant is uniform. For example, CN 107634109A (Wang Fujiang, liang Huaxu, li Hongyang, cheng Ziming, tan Jianyu. A system and method for realizing solar concentrating photovoltaic and medium-low temperature thermochemical combined energy production by spectral frequency division) and CN 108759120A (Liu Qibin, guo Shaopeng, fang Juan, liu Taixiu. Photochemical and thermochemical combined energy storage device) have a single cut-off band, and the solar spectral band allocated to the reactor is invariable. However, for the solar photovoltaic-photothermal chemical complementary system, as methanol flows and reacts in the reactor, the thermochemical reaction has different requirements for solar energy at different positions of the reactor, and in the inlet section and the middle section of the thermochemical reactor, solar energy is used for heating the methanol and providing reaction heat for the thermochemical reaction, and the thermochemical reaction has higher requirements for solar energy. When the methanol flows to the outlet section of the reactor, the thermochemical reaction tends to be finished, and the demand of the thermochemical reaction on solar energy is reduced. Therefore, the conventional single-cut-off band spectrum allocation method does not consider the change of the energy requirement of the thermochemical reaction, which results in that the solar energy allocated to the outlet section of the reactor by the frequency divider is greater than the solar energy requirement of the thermochemical reaction, the energy input on the thermochemical reactor is not matched with the energy requirement of the thermochemical reaction, so that the loss of the solar energy is caused, and the solar energy utilization efficiency of the system is reduced.
Disclosure of Invention
The invention aims to provide a variable cutoff band spectrum allocation method of a photovoltaic-photothermal chemical complementary system, which is used for optimizing solar energy distribution on a thermochemical reactor in the solar photovoltaic-photothermal chemical complementary system, solving the problem of solar energy loss caused by mismatching of solar energy input on the thermochemical reactor and thermochemical reaction energy requirements, reducing the energy loss of the thermochemical reactor and improving the utilization efficiency of a coupling system on solar energy.
The technical solution for realizing the purpose of the invention is as follows:
a frequency divider is arranged between a photovoltaic cell and a thermal chemical reactor and used for dividing and distributing full-spectrum solar energy, the frequency divider is divided into a plurality of sections, each section has a cut-off wave band with change, and according to the difference of the thermal chemical reaction at different positions of the thermal chemical reactor on the solar energy demand, the cut-off wave band of each section of the frequency divider is different, so that the solar energy distributed to the thermal chemical reactor and the photovoltaic cell is adjusted.
A solar photovoltaic-photothermal chemical complementary system comprising:
the collecting mirror is used for collecting and reflecting sunlight to the spectrum frequency divider;
a photovoltaic cell for converting photovoltaic conversion into electrical energy;
a thermochemical reactor for absorbing solar energy and converting it into heat energy;
a frequency divider for distributing sunlight to the photovoltaic cell and the thermochemical reactor;
the frequency divider is of multiple sections, each section has a variable cut-off wave band, and the cut-off wave band of each section is different according to different requirements of thermochemical reaction at different positions of the thermochemical reactor on solar energy.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The invention fully considers the change of the thermochemical reaction in the thermochemical reactor on the solar energy demand when dividing and distributing the solar spectrum, and matches the solar energy distributed to the reactor by the spectrum frequency divider with the energy demand of the methanol cracking reaction. The spectral frequency divider has a variable cut-off band, and at a position where the thermochemical reaction has high solar energy demand, the spectral frequency divider has a narrower cut-off band, so that more solar energy can be distributed to the reactor in the section. At the position where the demand of thermochemical reaction on solar energy is reduced, the cut-off band of the spectral frequency divider is widened, the solar energy distributed to the reactor at the section is reduced, the corresponding solar energy distributed to the photovoltaic cell is increased, the output power of the photovoltaic cell is improved, and the utilization efficiency of the solar energy is improved.
(2) The invention reduces the input of solar energy at the outlet section of the thermochemical reactor, effectively reduces the temperature at the outlet section of the synthesis gas, reduces the heat dissipation loss of the reactor to the environment, reduces the solar energy absorbed by the synthesis gas and improves the conversion ratio of the solar energy to the chemical energy at the section.
(3) When the solar spectrum is divided and distributed, the invention comprehensively considers the proper wave bands and energy of the photovoltaic conversion and the photo-thermal chemical conversion, distributes partial wave band sunlight which can be efficiently utilized by the photovoltaic cell to the photovoltaic cell for the photovoltaic conversion, and distributes low-grade solar energy of other wave bands to the photo-thermal chemical reaction, thereby realizing the conversion of the low-grade solar energy to high-grade chemical energy.
Drawings
FIG. 1 is a schematic diagram of solar spectrum distribution in a variable cut-off band.
FIG. 2 is a schematic diagram of a solar photovoltaic-photothermal chemical complementation system.
Detailed Description
In order to make the technical solution and advantages of the present invention more apparent, the following description is further provided with reference to the accompanying drawings and examples. Fig. 1 is a schematic diagram of a variable cut-off wavelength spectrum allocation method, and fig. 2 is a schematic diagram of a solar photovoltaic-thermochemical complementary system using the variable cut-off wavelength spectrum allocation method.
In this embodiment, the spectrum frequency divider is divided into two sections, and the solar photovoltaic-thermochemical complementary system apparatus includes a photovoltaic cell 1, a first spectrum frequency divider 2, a second spectrum frequency divider 3, a thermochemical reactor 4, and a collecting mirror 5, where the collecting mirror 5 is used to collect and reflect sunlight, and is generally a groove-type collecting mirror, and other linear collecting mirrors may also be used. The condenser 5 reflects the sunlight to the first spectrum divider 2 and the second spectrum above the condenserThe frequency divider 3, the first spectral frequency divider 2 and the second spectral frequency divider 3 have a high transmittance for a specific wavelength band of sunlight and a high reflectance for the remaining wavelength bands of sunlight. The first spectrum frequency divider 2 and the second spectrum frequency divider 3 redistribute the sunlight of the full spectrum with the wavelength at lambda S,d -λ S,u Part of short-wave sunlight suitable for efficient utilization of the photovoltaic cell is reflected to the photovoltaic cell 1 below the spectrum frequency divider by the first spectrum frequency divider 2 and the second spectrum frequency divider 3, and the rest of wavelengths are less than lambda S,d And is greater than λ S,u Is distributed to a thermochemical reactor 4, lambda by means of a first spectral divider 2 and a second spectral divider 3 S,d -λ S,u Is the cut-off band of the frequency divider, λ S,d And λ S,u Respectively, a lower limit wavelength and an upper limit wavelength of a cut-off band of the frequency divider. The sunlight distributed to the photovoltaic cell 1 is converted into electric energy by photovoltaic conversion. The solar energy distributed to the thermochemical reaction is firstly absorbed by the thermochemical reactor 4 and converted into heat energy, and then the heat energy is used as reaction heat to drive the thermochemical reaction to occur and produce synthesis gas, and the solar energy is finally converted into chemical energy to be stored in the synthesis gas. The photovoltaic cell is used for converting photovoltaic conversion into electric energy, and a water-cooling radiator is arranged below the photovoltaic cell and used for cooling the photovoltaic cell; and heat-conducting silicone grease is filled between the battery and the radiator to enhance heat exchange. The thermochemical reactor is used for absorbing solar energy and converting the solar energy into heat energy to provide reaction heat for the thermochemical reaction of methanol cracking, and the metal pipe is filled with a granular methanol cracking catalyst. The thermochemical reactor is formed by combining an inner concentric tube and an outer concentric tube, the inner tube is a stainless steel metal tube, the outer surface of the inner tube is covered with a sunlight selective absorption coating, and the thermochemical reactor has the characteristics of high sunlight absorption rate and low emissivity. The outer tube is a glass tube, and a vacuum layer is arranged between the inner tube and the outer tube, so that the heat loss of the reactor can be effectively reduced.
In the embodiment, the spectrum frequency divider is divided into two sections of spectrum frequency dividers 2 and 3 with different cut-off wave bands, the first spectrum frequency divider 2 corresponds to the front section of the thermochemical reactor 4, the cut-off wave band is 400nm-600nm, sunlight with the wavelength of 400nm-600nm is distributed to the photovoltaic cell, and sunlight with the other wave bands is used for thermochemical reaction; the second spectral divider 3 corresponds to the outlet section of the thermochemical reactor 4, with a cut-off band of 400nm to 850nm, distributing the sunlight with a wavelength of 400nm to 850nm to the photovoltaic cells and distributing the sunlight with the remaining bands to the thermochemical reaction. After entering the thermochemical reactor 4, the methanol is heated to the reaction temperature by solar energy, and then the thermochemical reaction occurs to absorb heat energy to produce synthesis gas. The thermochemical reaction therefore has a greater energy requirement in the front section of the reactor 4. In order to meet the energy requirement of the thermochemical reaction, the cut-off band of the first spectral divider 2 is narrow in the range of 400nm to 600nm, so that sufficient solar energy is distributed to the thermochemical reaction by the first spectral divider 2. The thermochemical reaction is ended as the methanol flows to the rear section, i.e. the outlet section, of the thermochemical reactor 4, and the thermochemical reaction is mainly syngas in the thermochemical reactor 4, and most of the solar energy received by the syngas is utilized by the thermochemical reaction, absorbed by the syngas and converted into internal heat energy, so that the temperature is increased and finally the internal heat energy is lost to the environment in the form of heat. The energy requirement of the thermochemical reaction in the latter part of the reactor 4 is therefore reduced. In order to match the energy requirement of the thermochemical reaction and reduce the solar energy loss, the cut-off band of the second spectral divider 3 is widened to 400nm to 850nm so that the solar energy distributed by the second spectral divider 3 to the outlet section of the chemical reactor 4 is reduced and the solar energy loss is reduced. Correspondingly, the solar energy distributed to the corresponding position of the photovoltaic cell 1 is increased, the output power of the photovoltaic cell 1 is increased, and the utilization efficiency of the system on the solar energy is improved.
The spectral frequency divider is divided into two sections with different cut-off bands only for the embodiment, and for different systems or thermochemical reactions, the spectral frequency divider is not limited to only two different cut-off bands and energy distribution ratios, and may have a plurality of cut-off bands, and the cut-off bands and the spectral distributions of the frequency divider should be determined according to the change of the actual energy requirement of the thermochemical reaction.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification and replacement within the scope of the disclosure herein disclosed will be within the scope of the present invention as defined by the appended claims.
Claims (6)
1. A photovoltaic-photothermal chemical complementary system variable cutoff band spectrum distribution method is characterized in that a frequency divider is arranged between a photovoltaic cell and a thermochemical reactor and used for dividing and distributing full spectrum solar energy, the frequency divider is divided into a plurality of sections and comprises a first spectrum frequency divider and a second spectrum frequency divider, the first spectrum frequency divider corresponds to the front section of the thermochemical reactor, and the second spectrum frequency divider corresponds to the rear section of the thermochemical reactor; the first spectrum frequency divider and the second spectrum frequency divider have variable cut-off wave bands, the cut-off wave bands of the frequency dividers at each section are different according to the different requirements of the thermochemical reaction on solar energy at different positions of the thermochemical reactor, so as to adjust the solar energy wave bands and the energy proportion distributed to different positions of the thermochemical reactor and the photovoltaic cell, the requirement on the solar energy at the front section of the thermochemical reactor is high, the first spectrum frequency divider has a narrower cut-off wave band, and more solar energy is distributed to the reactor; the solar energy demand decreases in the latter part of the thermochemical reactor, and the second spectral divider has a wider cut-off band, which makes it possible to reduce the solar energy distributed to the corresponding part of the reactor.
2. A solar photovoltaic-photothermal chemical complementary system comprising:
the collecting mirror is used for collecting and reflecting sunlight to the spectrum frequency divider;
a photovoltaic cell for converting photovoltaic conversion into electrical energy;
the thermochemical reactor is used for absorbing solar energy and converting the solar energy into heat energy to drive the thermochemical reaction;
a frequency divider for distributing sunlight to the photovoltaic cell and the thermochemical reactor; it is characterized in that the preparation method is characterized in that,
the frequency divider is divided into a plurality of sections and comprises a first spectrum frequency divider and a second spectrum frequency divider, wherein the first spectrum frequency divider corresponds to the front section of the thermochemical reactor, and the second spectrum frequency divider corresponds to the rear section of the thermochemical reactor; the first spectrum frequency divider and the second spectrum frequency divider have different cut-off wave bands, and the cut-off wave bands of the frequency dividers are different according to different solar energy requirements of thermochemical reactions at different positions of the thermochemical reactor;
the front section of the thermochemical reactor has high demand on solar energy, and the first spectrum frequency divider has a narrower cut-off waveband and distributes more solar energy to the reactor; the solar energy demand in the latter part of the thermochemical reactor is reduced, the cut-off band of the second spectral divider is widened and the solar energy allocated to the corresponding part of the reactor is reduced.
3. The solar photovoltaic-photothermal chemical complementation system according to claim 2, wherein the condenser is a trough condenser or a linear condenser reflector.
4. The solar photovoltaic-photothermal chemical complementation system according to claim 2, wherein a water-cooled heat sink is arranged below the photovoltaic cell to cool the cell.
5. The solar photovoltaic-photothermal chemical complementation system according to claim 2, wherein a heat conducting silicone grease is filled between the photovoltaic cell and the water-cooled heat sink to enhance heat exchange.
6. The solar photovoltaic-photothermal chemical complementary system according to claim 2, wherein the chemical reactor is composed of an inner concentric tube and an outer concentric tube, the inner tube is a stainless steel metal tube, and the outer surface is covered with a sunlight selective absorption coating; the outer tube is a glass tube, and a vacuum layer is arranged between the inner tube and the outer tube.
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| CN115259083A (en) * | 2022-08-03 | 2022-11-01 | 西安热工研究院有限公司 | Solar efficient comprehensive utilization system and working method thereof |
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| CN106849859A (en) * | 2017-01-22 | 2017-06-13 | 中国科学院工程热物理研究所 | A kind of full spectrum of solar energy utilizes device |
| CN107634109A (en) * | 2017-09-13 | 2018-01-26 | 哈尔滨工业大学（威海） | It is a kind of that solar concentrating photovoltaic and the chemical combined generating systems of middle Low Temperature Thermal and method are realized by spectrum frequency dividing |
| CN107634697A (en) * | 2017-10-20 | 2018-01-26 | 中国科学院工程热物理研究所 | A kind of " pyrolysis coupling " photovoltaic heat chemistry utilization system |
| CN108759120B (en) * | 2018-04-28 | 2021-04-06 | 中国科学院工程热物理研究所 | Photochemical and thermochemical combined energy storage device |
| CN111510050A (en) * | 2020-04-28 | 2020-08-07 | 天津大学 | Device and method for utilizing full solar energy spectrum by cooperatively optimizing spectrum and light intensity |
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