CN104682865A - Concentrating photovoltaic natural circulation phase change cooling system - Google Patents
Concentrating photovoltaic natural circulation phase change cooling system Download PDFInfo
- Publication number
- CN104682865A CN104682865A CN201410821590.4A CN201410821590A CN104682865A CN 104682865 A CN104682865 A CN 104682865A CN 201410821590 A CN201410821590 A CN 201410821590A CN 104682865 A CN104682865 A CN 104682865A
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- CN
- China
- Prior art keywords
- working fluid
- low boiling
- photovoltaic cell
- heat exchanger
- boiling working
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title abstract description 6
- 230000008859 change Effects 0.000 title abstract description 4
- 238000009835 boiling Methods 0.000 claims abstract description 64
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000005855 radiation Effects 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 13
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000032677 cell aging Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Abstract
The invention provides a concentrating photovoltaic natural circulation phase change cooling system, which comprises a concentrating lens, a photovoltaic cell, radiating fins, a boiling heat exchanger, a low boiling working fluid, a gas-liquid separator, an external radiator and part connecting pipelines. The concentrating lens enables condensed sunlight to irradiate on the photovoltaic cell so as to convert the sunlight into electric energy. The photovoltaic cell is wholly packaged in the boiling heat exchanger; one face, toward the lens or a reflecting mirror, of the boiling heat exchanger is transparent; the low boiling working fluid for circulating is filled in the transparent face; the fins on the back face of the cell is immersed in the low boiling working fluid; heat generated by the photovoltaic cell is transmitted to the low boiling working fluid through the fins on the back face of the photovoltaic cell; the generated low boiling working fluid steam is carried with a part of low boiling working fluid liquid. The system utilizes the phase change heat exchange and gravity natural circulation of the low boiling working fluid to radiate the photovoltaic cell, and has the advantages of simple structure, small external power consumption, obvious radiating effect and the like.
Description
Technical field
The present invention relates to concentrating photovoltaic power generation technology, especially a kind of condensation photovoltaic natural circulation phase-change radiation system.
Background technology
Concentrating photovoltaic power generation technology (CPV), generate electricity again after using the condenser mirror of relative low price or lens to be converged by sunlight, significantly decrease the usable floor area of expensive solar cell, being considered to the third-generation technology of solar power generation future developing trend, is a kind of important channel of effective reduction cost for solar power generation.But the solar energy incided on photovoltaic cell only has fraction to change into electric energy, and remainder is converted to heat energy, makes battery temperature raise.Higher generating efficiency and the power output that can affect battery of photovoltaic battery temperature, causes photovoltaic cell aging and serious curtailment its useful life.
Current condensation photovoltaic heat-removal modalities mainly contains the passive heat radiation of photovoltaic cell backplane, the heat radiation of battery back-sheet fin reinforcing air cooling, duct type water cooling heat radiation.If solar panel uses aluminium or fin made of copper to carry out natural heat dissipation, need a large amount of fin, cost is higher, and radiating effect is poor.If use water-cooled except will using electric power, cost is also high, but also needs the moving components such as water pump, system complex, and reliability is lower.
Summary of the invention
The object of the invention is to the problems such as and radiating effect too high for the cost existed in traditional condenser photovoltaic cooling system be poor, provide a kind of condensation photovoltaic natural circulation phase-change radiation system.
For realizing above object, this invention takes following technical scheme: a kind of condensation photovoltaic natural circulation phase-change radiation system, comprise the boiling heat exchanger forming link circuit successively, gas-liquid separator, external heat sink, the wherein one side of boiling heat exchanger is transparent surface, the low boiling working fluid for circulating is perfused with in boiling heat exchanger, also photovoltaic cell is packaged with in boiling heat exchanger, photovoltaic cell has the sensitive surface of the solar energy irradiation received after collective optics converges, the sensitive surface of described photovoltaic cell is towards described transparent surface, the another side deviated from mutually with sensitive surface is on photovoltaic cells provided with radiating fin, this radiating fin is soaked in low boiling working fluid, the height of described external heat sink and gas-liquid separator is higher than the height of boiling heat exchanger.
Described collective optics comprises collector lens, plane reflection condenser, camber reflection condenser.
Described low boiling working fluid is non-conductive working medium under applying working condition.
Low boiling working fluid is the professional term that thermal technology field is commonly used, and does not describe in detail at this.
Solar light irradiation after convergence is changed into electric energy by collector lens on photovoltaic cells.Wherein photovoltaic cell overall package is in boiling heat exchanger, boiling heat exchanger is towards a printing opacity of lens or speculum, ensure that the solar energy converged through collector lens irradiates on photovoltaic cells, low boiling working fluid is equipped with in the inside, and the fin of cell backside is immersed in low boiling working fluid, the heat that photovoltaic cell produces passes to low boiling working fluid by the radiating fin at the photovoltaic cell back side, a part of low boiling working fluid liquid is carried secretly in the low boiling working fluid steam produced, be separated in gas-liquid separator, liquid is condensed in low boiling working fluid steam external heat sink, the height of external heat sink and gas-liquid separator is higher than the height of boiling heat exchanger, liquid like this after outside radiator cold coagulates relies on Action of Gravity Field to flow to again in boiling heat exchanger, complete whole system circulation.This system utilizes the phase-change heat-exchange of low boiling working fluid and gravity natural circulation to carry out the heat radiation of photovoltaic cell, has the advantages such as simple, the outside power consumption of structure is little, radiating effect is remarkable.
Compared with prior art, tool has the following advantages in the present invention:
(1) heat of battery is passed to low boiling working fluid by the fin at its back side by photovoltaic cell, carries out boiling heat transfer, has the advantage that heat exchange coefficient is large, and battery temperature will be made so lower, and efficiency is high, and the life-span is long, and system configuration is compact.
(2) height of external heat sink is higher than the height of boiling heat exchanger, and the liquid after outside radiator cold coagulates relies on Action of Gravity Field to flow to again in boiling heat exchanger, completes whole system working medium circulation, without the need to working medium pump.
Accompanying drawing explanation
Fig. 1 is a kind of condensation photovoltaic natural circulation phase-change radiation system (employing collector lens);
Fig. 2 is a kind of condensation photovoltaic natural circulation phase-change radiation system (adopting plane reflection condenser);
Fig. 3 is a kind of condensation photovoltaic natural circulation phase-change radiation system (plane reflection condenser).
Embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is described in further details.
Embodiment:
Collective optics mainly comprises collector lens, plane reflection condenser, camber reflection condenser, according to the difference of the solar energy ethod of remittance, the present invention proposes three kinds of condensation photovoltaic natural circulation Phase Transition Systems, distinctive points wherein is only the ethod of remittance of solar energy, the collective optics of Fig. 1 to Fig. 3 is collector lens 1a, plane reflection condenser 1b respectively, camber reflection condenser 1c.
A kind of condensation photovoltaic natural circulation phase-change radiation system, comprise the boiling heat exchanger 4 forming link circuit successively, gas-liquid separator 6 and external heat sink 7, the wherein one side of boiling heat exchanger 4 is transparent surface, the low boiling working fluid 5 for circulating is perfused with in boiling heat exchanger 4, photovoltaic cell 2 is also packaged with in boiling heat exchanger 4, photovoltaic cell 2 has the sensitive surface of the solar energy irradiation received after collective optics converges, the sensitive surface of photovoltaic cell 2 is towards lens or speculum, the another side deviated from mutually with sensitive surface is provided with radiating fin 3 for photovoltaic cell 2, this radiating fin 3 is soaked in low boiling working fluid 5, the height of external heat sink 7 and gas-liquid separator 6 is higher than the height of boiling heat exchanger 4.
Optical lens 1a or plane reflection condenser 1b or camber reflection condenser 1c is by the sunlight after convergence.Wherein photovoltaic cell 2 overall package is in boiling heat exchanger 4, boiling heat exchanger 4 is towards a printing opacity of lens or speculum, ensure that the solar energy converged through collector lens irradiates on photovoltaic cells, low boiling working fluid 5 is equipped with in the inside, difference according to concentration photovoltaic system installation scale can adopt different low boiling working fluids, as R245fa, R123 etc., and the fin of cell backside is immersed in low boiling working fluid 5, low boiling working fluid, there is boiling point low, the advantages such as the latent heat of vaporization is large, the heat that photovoltaic cell 2 produces passes to low boiling working fluid 5 by the fin 3 at the photovoltaic cell back side, a part of low boiling working fluid liquid is carried secretly in the low boiling working fluid steam produced, be separated in gas-liquid separator 6, low boiling working fluid steam is condensed into liquid in external heat sink 7, the height of external heat sink 7 is higher than the height of boiling heat exchanger 4, Action of Gravity Field is relied on to flow to again in boiling heat exchanger 4 at the condensed liquid of external heat sink 7 like this, complete whole system circulation, low boiling working fluid steam is condensed into liquid in external heat sink, external heat sink can adopt air cooling way.This system utilizes the phase-change heat-exchange of low boiling working fluid and gravity natural circulation to carry out the heat radiation of photovoltaic cell, has the advantages such as simple, the outside power consumption of structure is little, radiating effect is remarkable.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (3)
1. a condensation photovoltaic natural circulation phase-change radiation system, it is characterized in that: comprise the boiling heat exchanger (4) forming link circuit successively, gas-liquid separator (6), external heat sink (7), the wherein one side of boiling heat exchanger (4) is transparent surface, the low boiling working fluid (5) for circulating is perfused with in boiling heat exchanger (4), photovoltaic cell (2) is also packaged with in boiling heat exchanger (4), photovoltaic cell (2) has the sensitive surface of the solar energy irradiation received after collective optics converges, the sensitive surface of described photovoltaic cell (2) is towards described transparent surface, the another side that photovoltaic cell (2) above deviates from mutually with sensitive surface is provided with radiating fin (3), this radiating fin (3) is soaked in low boiling working fluid (5), the height of described external heat sink (7) and gas-liquid separator (6) is higher than the height of boiling heat exchanger (4).
2. condensation photovoltaic natural circulation phase-change radiation system as claimed in claim 1, is characterized in that: described collective optics comprises collector lens (1a), plane reflection condenser (1b), camber reflection condenser (1c).
3. condensation photovoltaic natural circulation phase-change radiation system as claimed in claim 1, is characterized in that: low boiling working fluid (5) is non-conductive working medium under applying working condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821590.4A CN104682865A (en) | 2014-12-22 | 2014-12-22 | Concentrating photovoltaic natural circulation phase change cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821590.4A CN104682865A (en) | 2014-12-22 | 2014-12-22 | Concentrating photovoltaic natural circulation phase change cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104682865A true CN104682865A (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410821590.4A Pending CN104682865A (en) | 2014-12-22 | 2014-12-22 | Concentrating photovoltaic natural circulation phase change cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104682865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666282A (en) * | 2017-08-28 | 2018-02-06 | 云南靖创液态金属热控技术研发有限公司 | A kind of Condensation photovoltaic battery heat abstractor |
| CN114909704A (en) * | 2022-05-11 | 2022-08-16 | 内蒙古科技大学 | Energy storage system |
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| CN2643234Y (en) * | 2003-09-11 | 2004-09-22 | 山东康特姆新能源有限公司 | Solar plate heat pump water heater |
| CN1873359A (en) * | 2005-05-31 | 2006-12-06 | 杨清明 | Heat transfer system of separated heat pipe |
| CN101794831A (en) * | 2010-02-11 | 2010-08-04 | 天津大学 | Liquid-immersed flat plate photovoltaic component |
| WO2011091694A1 (en) * | 2010-01-29 | 2011-08-04 | 天津大学 | Liquid immersed photovoltaic module |
| CN103000737A (en) * | 2012-11-27 | 2013-03-27 | 华北电力大学 | Solar photovoltaic and optothermal coupling type solar battery and coupling power generation method thereof |
| CN103259458A (en) * | 2012-02-16 | 2013-08-21 | 王广武 | Solar thermoelectric power generation system |
| CN103812438A (en) * | 2014-02-19 | 2014-05-21 | 华北电力大学（保定） | Light reflecting type solar power generation device |
-
2014
- 2014-12-22 CN CN201410821590.4A patent/CN104682865A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2643234Y (en) * | 2003-09-11 | 2004-09-22 | 山东康特姆新能源有限公司 | Solar plate heat pump water heater |
| CN1873359A (en) * | 2005-05-31 | 2006-12-06 | 杨清明 | Heat transfer system of separated heat pipe |
| WO2011091694A1 (en) * | 2010-01-29 | 2011-08-04 | 天津大学 | Liquid immersed photovoltaic module |
| CN101794831A (en) * | 2010-02-11 | 2010-08-04 | 天津大学 | Liquid-immersed flat plate photovoltaic component |
| CN103259458A (en) * | 2012-02-16 | 2013-08-21 | 王广武 | Solar thermoelectric power generation system |
| CN103000737A (en) * | 2012-11-27 | 2013-03-27 | 华北电力大学 | Solar photovoltaic and optothermal coupling type solar battery and coupling power generation method thereof |
| CN103812438A (en) * | 2014-02-19 | 2014-05-21 | 华北电力大学（保定） | Light reflecting type solar power generation device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666282A (en) * | 2017-08-28 | 2018-02-06 | 云南靖创液态金属热控技术研发有限公司 | A kind of Condensation photovoltaic battery heat abstractor |
| CN114909704A (en) * | 2022-05-11 | 2022-08-16 | 内蒙古科技大学 | Energy storage system |
| CN114909704B (en) * | 2022-05-11 | 2024-01-23 | 内蒙古科技大学 | Energy storage system |
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Application publication date: 20150603 |