CN114370711B - Phase change material layer assisted Tesla valve type runner photovoltaic photo-thermal assembly - Google Patents
Phase change material layer assisted Tesla valve type runner photovoltaic photo-thermal assembly Download PDFInfo
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- CN114370711B CN114370711B CN202111641188.4A CN202111641188A CN114370711B CN 114370711 B CN114370711 B CN 114370711B CN 202111641188 A CN202111641188 A CN 202111641188A CN 114370711 B CN114370711 B CN 114370711B
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- change material
- material layer
- runner
- phase change
- plate
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- 239000012782 phase change material Substances 0.000 title claims abstract description 40
- 239000011521 glass Substances 0.000 claims abstract description 35
- 239000002313 adhesive film Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007517 polishing process Methods 0.000 abstract description 3
- 230000003313 weakening effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/10—Arrangements for storing heat collected by solar heat collectors using latent heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
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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
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a Tesla valve type runner photovoltaic photo-thermal component assisted by a phase change material layer, which comprises an upper glass cover plate, a solar battery pack, a lower glass cover plate, a runner plate and a phase change material layer, wherein the upper glass cover plate is laid on the top surface of the solar battery pack, the runner plate and the phase change material layer are both arranged below the solar battery pack, and the runner plate is laid above the phase change material layer; in the technical scheme provided by the invention, the heat collector runner formed by the runner plate is not provided with an upper cover, so that heat-conducting fluid in the runner is directly contacted with the battery backboard, the heat transfer resistance is reduced, the assembly has higher electric efficiency and thermal efficiency, the upper surface of the runner adopts a polishing process, light leakage in gaps of battery pieces can be secondarily reflected to the back of the battery board, the solar energy utilization rate is improved, the phase-change material is utilized to further absorb heat, the cooling effect is improved, and meanwhile, the effect of weakening the randomness and the fluctuation of solar energy at an energy supply source can be realized.
Description
Technical Field
The invention relates to the technical field of solar energy comprehensive utilization, in particular to a Tesla valve type runner photovoltaic photo-thermal component assisted by a phase change material layer.
Background
Solar energy is used as renewable energy, has the advantages of large quantity, easy obtaining and low carbon, can greatly improve the energy supply, simultaneously optimizes the energy structure, eliminates the harm of the traditional fossil energy to the environment, and realizes the effective support of carbon peak reaching and carbon neutralization by high-efficiency utilization. Solar photovoltaic power generation, an important form of solar energy utilization, is a technology for directly converting sunlight into electric energy by utilizing a photovoltaic effect, and relies on a conversion device which is a solar cell. Because the external quantum efficiency of the solar cell to each spectrum of the incident sunlight is different, the total energy conversion efficiency is less than 100%, and a large amount of energy which is not effectively utilized exists. Most of the unused energy is converted into heat energy, so that the temperature of the solar cell is increased (the photoelectric conversion efficiency of the solar cell is reduced), and the heat energy is dissipated to the outside. In order to reduce the temperature of the solar panel, improve the photoelectric efficiency and fully recycle the energy so as to improve the total utilization efficiency, the solar photovoltaic photo-thermal technology is developed, and a heat conduction fluid is circulated in a flow channel attached to the back of the solar panel to recycle waste heat.
The prior art has the following defects or problems:
the runner in the current photovoltaic photo-thermal component generally adopts a flat metal plate attached to the solar cell panel, and a layer of thermal resistance is added between the cell panel and the heat-conducting fluid. The flow channel without the upper cover plate eliminates the thermal resistance, but the pressure bearing performance is weak.
Disclosure of Invention
The invention aims to provide a Tesla valve type runner photovoltaic photo-thermal component assisted by a phase-change material layer aiming at the defects in the prior art so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a supplementary tesla valve type runner photovoltaic light and heat subassembly in phase change material layer, includes upper glass apron, solar array, lower glass apron, runner plate and phase change material layer, upper glass apron lays the top surface at solar array, runner plate and phase change material layer all set up in solar array below, just the top at the phase change material layer is laid to the runner plate.
Optionally, the upper glass cover plate is made of vacuum glass.
Optionally, the lower glass cover plate is laid on the bottom surface of the solar cell set.
Optionally, the upper glass cover plate and the lower glass cover plate are both fixedly connected with the solar battery pack through organic adhesive films.
Optionally, the flow channel in the flow channel plate is a tesla valve type flow channel.
Optionally, the top of the phase change material layer is provided with a runner groove matched with the bottom of the runner plate.
Optionally, the solar cell group is composed of double-sided solar cells.
Compared with the prior art, the invention provides a Tesla valve type runner photovoltaic photo-thermal component assisted by a phase change material layer, which has the following beneficial effects:
1. the heat collector runner formed by the runner plate is not provided with the upper cover, so that heat-conducting fluid in the runner is directly contacted with the battery backboard, the heat transfer resistance is reduced, the temperature of the battery panel can be more effectively reduced, the assembly has higher electric efficiency and thermal efficiency, the upper surface of the runner adopts a polishing process, light leakage in a gap of a battery piece can be secondarily reflected to the back of the battery board, a double-sided battery is utilized to be continuously converted into electric energy, the solar energy utilization rate is improved, the runner is compact in structure, can be formed at one time by stamping a metal plate and the like, the manufacturing efficiency is high, and maintenance and replacement can be carried out by replacing a back-filled phase-change material bag;
2. the invention adopts the cooling mode of combining active and passive cooling of fluid cooling and phase-change cooling, and further improves the convection heat exchange efficiency through the turbulent flow effect caused by a Tesla valve type flow channel formed by the flow channel groove of the flow channel plate. Meanwhile, the phase-change material layer further absorbs heat by using the phase-change material, so that the cooling effect is improved, and the effect of weakening the randomness and the volatility of solar energy can be achieved at an energy supply source.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the present invention.
In the figure: 1. an upper glass cover plate; 2. a solar cell array; 3. a lower glass cover plate; 4. a runner plate; 5. a phase change material layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Referring to fig. 1-2, in the present embodiment: a Tesla valve type runner photovoltaic photo-thermal component assisted by a phase change material layer comprises an upper glass cover plate 1, a solar battery pack 2, a lower glass cover plate 3, a runner plate 4 and a phase change material layer 5, wherein the upper glass cover plate 1 is laid on the top surface of the solar battery pack 2, the runner plate 4 and the phase change material layer 5 are both arranged below the solar battery pack 2, the runner plate 4 is laid above the phase change material layer 5, and the solar battery pack 2 consists of double-sided solar cells; the solar battery pack assembly combines the heat exchange advantage of a runner without the upper cover plate runner plate 4, simultaneously utilizes the characteristic of strong heat storage capacity of the phase change material layer 5 to further absorb the waste heat of the solar battery pack 2, plays the effects of heat storage when solar energy is sufficient and heat release when solar energy is insufficient, and can weaken the randomness and volatility of solar energy to a certain extent.
The upper glass cover plate 1 is made of vacuum glass; the thermal resistance between the vacuum glass and the environment is increased under the condition that the transmittance of incident light is not influenced by the arranged vacuum glass, so that the heat loss of the assembly is effectively reduced, and the assembly efficiency is improved.
The lower glass cover plate 3 is laid on the bottom surface of the solar battery pack 2; the structure is reasonable, and the subsequent use is convenient.
The upper glass cover plate 1 and the lower glass cover plate 3 are both fixedly connected with the solar battery pack 2 through organic adhesive films (EVA); carry out the adhesion through organic glued membrane EVA, and go up glass apron 1 and lower glass apron 3 and all be a little bigger than solar array 2's area, be convenient for follow-up fixed and do not form the frame shadow, guarantee solar cell efficiency.
The flow channel in the flow channel plate 4 adopts a Tesla valve type flow channel; the Tesla valve type flow channel is adopted, and the turbulent flow produced by the Tesla valve type flow channel is utilized to improve the convection heat transfer coefficient and strengthen the heat transfer capability.
The top of the phase change material layer 5 is provided with a runner groove matched with the bottom of the runner plate 4; it is rational in infrastructure, be convenient for make phase change material layer 5 and runner plate 4 connect together.
The working principle and the using process of the invention are as follows: the solar cell group 2 is provided with a cell sheet positioned in the middle of the upper glass cover plate 1 and the lower glass cover plate 3, so that the received solar radiation can be converted into electric energy, meanwhile, the runner plate 4 on the back of the cell plate takes away the heat of the cell plate through the cooling medium in the runner, the temperature of the cell plate is reduced, the power generation efficiency is improved, the runner plate 4 adopts a Tesla valve type runner, the turbulent flow produced by the runner plate is utilized to improve the convective heat transfer coefficient, and the heat transfer capability is strengthened. Meanwhile, the heat-conducting fluid can be used as a heat source of the heat pump unit to effectively improve the heat pump efficiency or daily utilization of hot water supply after being heated.
The polishing process is adopted on the upper surface of the flow channel plate 4, light leakage is reflected to the back of the double-sided solar cell again, the advantage that the back of the double-sided solar cell can also generate electricity is fully utilized, and the solar photoelectric conversion efficiency is improved.
The phase-change material layer 5 utilizes the characteristic that the phase-change material can absorb a large amount of heat after melting at a certain temperature, can weaken the intermittence of solar energy to a certain extent, further absorbs the waste heat that does not utilize solar energy to produce when sunshine is sufficient, releases heat to the fluid in the runner when sunshine is insufficient, and the stability and inertia of the assembly output heat energy are improved to the relatively single fluid cooling type photovoltaic photo-thermal assembly. However, the phase-change material has the defects of low heat conductivity coefficient and slow heat absorption and release, and in order to overcome the defects, the nano particles are added into the phase-change material, so that the formed phase-change material not only has high heat storage capacity, but also effectively improves the heat conductivity coefficient, and the thermal demand response of the component is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The utility model provides a supplementary tesla valve type runner photovoltaic light and heat subassembly of phase change material layer which characterized in that: the solar cell module comprises an upper glass cover plate (1), a solar cell group (2), a lower glass cover plate (3), a runner plate (4) and a phase-change material layer (5), wherein the upper glass cover plate (1) is laid on the top surface of the solar cell group (2), the runner plate (4) and the phase-change material layer (5) are both arranged below the solar cell group (2), and the runner plate (4) is laid above the phase-change material layer (5);
the flow channel in the flow channel plate (4) adopts a Tesla valve type flow channel, and the top of the phase change material layer (5) is provided with a flow channel groove matched with the bottom of the flow channel plate (4).
2. The phase change material layer assisted tesla valve-type runner photovoltaic and photothermal assembly of claim 1 wherein: the upper glass cover plate (1) is made of vacuum glass.
3. The phase change material layer assisted tesla valve-type runner photovoltaic and optothermal assembly of claim 1, wherein: the lower glass cover plate (3) is paved on the bottom surface of the solar battery pack (2).
4. The phase change material layer assisted tesla valve type runner photovoltaic and photothermal assembly of claim 3 wherein: the upper glass cover plate (1) and the lower glass cover plate (3) are fixedly connected with the solar battery pack (2) through organic adhesive films.
5. The phase change material layer assisted tesla valve-type runner photovoltaic and photothermal assembly of claim 1 wherein: the solar battery pack (2) is composed of double-sided solar battery pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641188.4A CN114370711B (en) | 2021-12-29 | 2021-12-29 | Phase change material layer assisted Tesla valve type runner photovoltaic photo-thermal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641188.4A CN114370711B (en) | 2021-12-29 | 2021-12-29 | Phase change material layer assisted Tesla valve type runner photovoltaic photo-thermal assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114370711A CN114370711A (en) | 2022-04-19 |
| CN114370711B true CN114370711B (en) | 2023-01-20 |
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| CN115133384B (en) * | 2022-06-29 | 2024-06-04 | 四川盛科唯工科技有限公司 | Large-caliber crystal mirror frame edge-wrapping cooling device and method for laser |
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| CN1745264A (en) * | 2002-12-04 | 2006-03-08 | 斯宾克斯公司 | Devices and methods for programmable microscale manipulation of fluids |
| CN101550737A (en) * | 2009-04-28 | 2009-10-07 | 同济大学 | Curtain wall glass structure having functions of solar power generation/phase change heat preservation |
| CN213868467U (en) * | 2020-10-29 | 2021-08-03 | 华南理工大学 | Heat preservation and insulation photovoltaic curtain wall component with phase change material |
| CN213907283U (en) * | 2020-12-24 | 2021-08-06 | 太原航空仪表有限公司 | Tesla valve type phase change temperature equalizing plate |
| CN113540280A (en) * | 2021-08-06 | 2021-10-22 | 北京天韵太阳科技发展有限公司 | Solar photovoltaic cogeneration assembly |
| CN113809195A (en) * | 2021-09-29 | 2021-12-17 | 华南理工大学 | Photovoltaic cell panel heat management system with shaped composite phase change material and water mixed cooling |
-
2021
- 2021-12-29 CN CN202111641188.4A patent/CN114370711B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745264A (en) * | 2002-12-04 | 2006-03-08 | 斯宾克斯公司 | Devices and methods for programmable microscale manipulation of fluids |
| CN101550737A (en) * | 2009-04-28 | 2009-10-07 | 同济大学 | Curtain wall glass structure having functions of solar power generation/phase change heat preservation |
| CN213868467U (en) * | 2020-10-29 | 2021-08-03 | 华南理工大学 | Heat preservation and insulation photovoltaic curtain wall component with phase change material |
| CN213907283U (en) * | 2020-12-24 | 2021-08-06 | 太原航空仪表有限公司 | Tesla valve type phase change temperature equalizing plate |
| CN113540280A (en) * | 2021-08-06 | 2021-10-22 | 北京天韵太阳科技发展有限公司 | Solar photovoltaic cogeneration assembly |
| CN113809195A (en) * | 2021-09-29 | 2021-12-17 | 华南理工大学 | Photovoltaic cell panel heat management system with shaped composite phase change material and water mixed cooling |
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| CN114370711A (en) | 2022-04-19 |
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