WO2013015698A2 - Solar collector - Google Patents
Solar collector Download PDFInfo
- Publication number
- WO2013015698A2 WO2013015698A2 PCT/PL2012/000056 PL2012000056W WO2013015698A2 WO 2013015698 A2 WO2013015698 A2 WO 2013015698A2 PL 2012000056 W PL2012000056 W PL 2012000056W WO 2013015698 A2 WO2013015698 A2 WO 2013015698A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- absorber
- collector
- photovoltaic module
- tubular structure
- embedded
- Prior art date
Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 23
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 229910052802 copper Inorganic materials 0.000 description 15
- 239000010949 copper Substances 0.000 description 15
- 229920001296 polysiloxane Polymers 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011490 mineral wool Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
-
- 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
Abstract
The present invention refers to the solar collector with photovoltaic batteries, which operates as a transducer of solar radiation energy into electric and thermal energy. The solar collector is enclosed in a housing, inside of which the photovoltaic module (1) is embedded. This module is glued to the absorber (3) with thermally conductive paste (2). There is a tubular structure (4) with the collecting pipe (5) and the stiffening support (9) soldered to the bottom surface of the absorber (3). The collector interior from the upper internal surface (7) of the collector housing to the lower bottom surface of the absorber (3) is filled with insulation (6).
Description
Solar collector
The present invention refers to a solar collector with photovoltaic batteries, which operates as a transducer of solar radiation energy into electric and thermal energy.
There are various types of known solar collector designs utilising the conversion of visible radiation into thermal energy.
The Polish patent specification No. 203881 presents an integrated photovoltaic module with a solar heat collector consisting of photovoltaic cells embedded inside a transparent cover fixed in the module's frame, a heat exchanger in the form of a water chamber situated between the transparent cover with photovoltaic cells and the adsorption plate embedded in the metal plate of the module's bottom.
The European patent specification No. PL/EP 1 636 527 presents a solar collector with a rectangular frame, in which an absorber is embedded in the isolation layer, the cover panel is situated above the absorber and slightly separated from it as well as an elastic adhesive sealant layer that fastens together the gap between the cover panel and the absorber and connecting the rim of the cover panel with projections embedded between the side panel of the external frame and the cover panel.
The Polish application for invention No. P.364190 entitled "The method and system of increasing the efficiency of the hybrid photovoltaic system" presents a solar collector whose photovoltaic modules are located directly on the radiator. The radiator is connected with the liquid-based solar collector, whose working fluid in its return circulation is cooled down after transferring heat and returns to a collector inlet through the radiator.
The photovoltaic collectors operating as solar energy transducers known from the state of the art have complex structures and their production is time-consuming. Known collectors have relatively low energetic efficiencies in converting solar energy into thermal or electric energy. The basic disadvantage of the collector described in application P.364190 is the installation of photovoltaic modules directly on the radiator, which significantly hinders energy transfer and the module's replacement in case of eventual mechanical damage or wear. The serial form of the radiator coil results in significant flow resistance which intensifies in the collectors' connections, especially since each collector described in application No. P.364190 has only two hydraulic outlets which significantly restricts the interconnection of more than 2-3 collectors. Moreover, the arrangement of photovoltaic modules directly on the radiator leaves a considerable amount of the modules' surface without the possibility of cooling it down.
The solar collector according to the invention forms a flat, three-dimensional solid of an arbitrary shape, whose whole. upper surface from the external side is filled with numerous silicone cells connected into a photovoltaic module or modules. The favourable collector's shape is
a flat, three-dimensional1 element with a rectangular base. The solar collector is a transducer of the solar energy into electric and thermal energy. The collector contains an electric energy generator and a thermal energy generator. It is a cogeneration device with the possibility of independent operation of each generator.
The collector has a housing, inside of which the photovoltaic module is embedded. The photovoltaic module is embedded directly in the upper absorption surface of the copper plate, or on the laminate plate, which directly adjoins the upper surface of the absorption copper plate with its total bottom surface. The absorbing copper plate is embedded in the collector's flat housing. The bottom laminate surface is firmly glued to the upper surface of the copper plate by means of a special thermally conductive paste with high thermal conductivity. Preferably, in a variation of the collector in which the photovoltaic module is glued directly to the copper plate, the thermally conductive paste used for gluing is colourless. The layer of the thermally conductive paste significantly increases the thermal energy flow from the laminate plate through the copper plate to the medium flowing through the tubular structure. Preferably, for the needs of this invention, in case the photovoltaic module is not located on the laminate plate but is glued directly to the absorber, to increase the possibility of utilisation of the amount of solar radiation energy not absorbed by silicone cells of the photovoltaic module, the absorber's copper plate is covered from the side of the photovoltaic module's embedment with a highly selective absorber coating that aids the absorber. The bottom surface of the copper plate is directly connected with the tubular structure embedded in the upper part of the collector housing. The selected meandrical
tubular structure allows for obtaining higher temperatures of the heat carrier and its uniform reception from the entire surface of the absorption plate. The tubular structure has a tubular compensation system that eliminates the effects of thermal expansion of the tubular structure's collecting pipe that allows connecting from two to over a dozen collectors in one row. The significant number of connected collectors improves heat recovery of similar parameters from all collectors, while the tubular compensation system enhances the installation of the collector batteries. Preferably, the upper surface of the tubular structure is soldered with a soft solder to the bottom surface of the copper plate. The solder surface significantly increases heat recovery through the tubular structure simultaneously cooling the bottom surface of the photovoltaic module through the copper plate. The medium that flows inside the tubular structure is a high-density fluid with high heat recovery and transfer efficiency. Preferably, for the needs of this invention the fluid is glycol. To maximally reduce the heat loss, the tubular structure is embedded and covered with a thermal insulation coating. The insulation is absent only in the contact point of the solder surface of the tubular structure with the copper plate. All the remaining space inside the collector is filled with this insulation. Preferably, for the needs of this invention, the insulation is made of not less than two layers of mineral wool. The bottom surface of the insulation covered directly on the bottom plate of the collector housing is a 50 mm thick layer of compressed mineral wool, tightly arranged on the bottom plate of the collector housing. The second upper layer of Unimata Isover mineral wool with a 30 mm thick glass fibre fleece is tightly arranged on the bottom layer of the mineral wool.
The tubular structure is embedded in the upper insulation layer. The upper surface of this insulation adjoins directly the bottom surface of the copper plate and the soldered tubular structure.
The operation of the electric energy generator consists in the conversion of solar radiation energy into electric energy. Solar rays fall on the surface of photovoltaic modules composed of electrically interconnected silicone cell units located on the laminate plate. The solar radiation produces potential difference on each cell of the silicone cell and by means of an appropriate . electric connection in a serial and parallel manner, the potential difference of the required value is transferred outside the module to the DC electric terminals. The electric generator energy is directly proportional to the solar radiation level and the module surface. The voltage value on the DC electric terminals depends on the number and the appropriate serial and parallel connection of the individual cells of photovoltaic module. The obtained electric energy generated in the solar radiation conversion process can be utilised in the so-called autonomous system. This system, utilising the photovoltaic modules' units of the collector, is composed of a battery unit, charging regulators and DC/AC inverters. This system is able to automatically supply the electric energy receivers. Another function of the electric energy generator is the cooperation system - without automatic functioning - with a national or regional electrical grid. This system, is composed of the photovoltaic modules' unit and DC/AC inverters synchronized with the grid.
It is known that the application of silicone to the construction of individual cells of the photovoltaic cell results in the additional temperature increase of the
laminate and of the silicone cells embedded in it, negatively influencing the efficiency of the collector's photovoltaic module. To avoid an efficiency decrease of the collector's electric energy generator caused by the temperature increase of the module or laminate, the solar radiation energy transducer has a built-in thermal energy generator. This generator utilizes the thermal energy excess produced during the operation of the electric energy generator. The heat energy generator is therefore a radiator of the photovoltaic module surface that simultaneously utilizes the portion of the solar radiation energy not absorbed by the silicone cells of the solar collector.
The thermal energy generator is a tubular structure arbitrarily arranged on one plane. Preferably, the tubular structure is ,filled with a flowing heat carrier, which is a high-density fluid. The tubular structure allows for the transfer of thermal energy recovered from the module surface outside the collector for further utilisation. The upper surface of the tubular structure is firmly soldered to the bottom surface of the copper absorption plate, glued with its upper surface by means of a specially modified silicone paste with very high thermal conductivity to the bottom part of the laminate with the embedded photovoltaic module. In the collector type, in which the photovoltaic module is glued directly to the absorber upper surface, the bottom surface of the module is glued to the absorber with a thermally conductive colourless paste. The entire construction of the heat energy generator has a properly selected insulation and is contained in an aluminium housing, enclosed from the bottom surface with an aluminium plate, while the upper surface is composed of a laminate plate with built-in silicone cells of the electric energy
generator. The insulation of the tubular structure of the heat energy generator is a filler of the space between the bottom plate of the aluminium housing and the bottom surface of the absorption copper plate with the tubular structure soldered to it. The upper surface of this insulation adjoins directly the bottom surface of the copper plate and the soldered tubular structure.
The advantage of the solar collector, according to the invention, is a simple structure, easy and quick installation, high energetic and thermal efficiency, the possibility of independent operation of each generator, and the possibility of the termination of the energy transfer process in each case without a negative impact to the device. The collector can be constructed on the basis of different photovoltaic module types of different sizes. The advantage of the collector resulting from its construction, asic elements and materials used is also its extended lifetime up to 30 years of continuous operation.
In the example of execution the present invention was presented in the figure, where Fig.l presents the cross- section of the solar collector, while Fig.2 shows one of the methods of the tubular structure arrangement inside the collector .
In the solar collector housing, the photovoltaic module 1 is glued to the absorber 3 by means of the thermally conductive paste 2. The tubular structure 4 with the collecting pipe 5 and the stiffening support 9 with the pipe outlet of the temperature sensor 8 is soldered to the bottom surface of the absorber 3. The collecting pipe 5 has a bent segment 10 as a compensation. The interior of the collector from the internal upper surface 7 of the collector housing to the bottom surface of the absorber 3 is filled with insulation 6.
Claims
1. The solar collector with photovoltaic batteries converting solar energy to electric and thermal energy, composed of a housing, inside of which the built-in photovoltaic module and the radiator of the photovoltaic module are comprised, characterised in that it has an electric energy generator composed of the photovoltaic module (1) embedded in the absorber plate (3) and the thermal energy generator composed of the tubular structure (4) connected directly to the absorber (3) , where to the upper surface of the absorber (3) the bottom surface of the photovoltaic module (1) or the bottom surface of the laminate plate with embedded photovoltaic module (1) is glued by means of thermally conductive paste (2), while the radiator of the photovoltaic module is the tubular structure (4) with the collecting pipe (5) and the stiffening support (9) firmly soldered to the bottom surface of the absorber (3), where the interior of the collector housing from its bottom surface of the housing (7) to the lower bottom surface of the absorber (3) is filled with insulation (6) . The collector according to claim 1 characterised in that the upper surface of the absorber (3) is coated with a highly selective absorber coating.
The collector according to claim 1 characterised in that the photovoltaic module (1) is embedded in the laminate plate .
The collector according to claim 1 characterised in that the tubular structure (4) is soldered to the absorber (3) with a soft solder.
The collector according to claim 1 characterised in that the thermally conductive plate (2) is colourless.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA201401660A UA110846C2 (en) | 2011-07-28 | 2012-07-24 | Solar collector |
| EP12775331.7A EP2737550A2 (en) | 2011-07-28 | 2012-07-24 | Solar collector |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PLP.395788 | 2011-07-28 | ||
| PL395788A PL218687B1 (en) | 2011-07-28 | 2011-07-28 | Solar energy collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2013015698A2 true WO2013015698A2 (en) | 2013-01-31 |
| WO2013015698A3 WO2013015698A3 (en) | 2013-11-21 |
Family
ID=47046819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/PL2012/000056 WO2013015698A2 (en) | 2011-07-28 | 2012-07-24 | Solar collector |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2737550A2 (en) |
| PL (1) | PL218687B1 (en) |
| UA (1) | UA110846C2 (en) |
| WO (1) | WO2013015698A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023073418A1 (en) | 2021-11-01 | 2023-05-04 | Bagirova Olena | Hybrid solar panel with a transparent liquid thermal collector, the method of manufacturing of the hybrid solar panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL364190A1 (en) | 2003-12-22 | 2005-06-27 | Politechnika Lubelska | Method and system for increasing efficiency of the hybrid solar system |
| EP1636527A1 (en) | 2003-06-13 | 2006-03-22 | VKR Holding A/S | Solar collector |
| PL203881B1 (en) | 2002-02-04 | 2009-11-30 | Politechnika Gdanska | Integrated phoyovoltaic module with a solar thermal energy collector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUD20060163A1 (en) * | 2006-06-26 | 2007-12-27 | Stefano Buiani | PHOTOVOLTAIC SYSTEM |
| DE202007010901U1 (en) * | 2007-08-06 | 2007-12-27 | Brabenec, Maike | hybrid collector |
-
2011
- 2011-07-28 PL PL395788A patent/PL218687B1/en unknown
-
2012
- 2012-07-24 WO PCT/PL2012/000056 patent/WO2013015698A2/en active Application Filing
- 2012-07-24 UA UAA201401660A patent/UA110846C2/en unknown
- 2012-07-24 EP EP12775331.7A patent/EP2737550A2/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL203881B1 (en) | 2002-02-04 | 2009-11-30 | Politechnika Gdanska | Integrated phoyovoltaic module with a solar thermal energy collector |
| EP1636527A1 (en) | 2003-06-13 | 2006-03-22 | VKR Holding A/S | Solar collector |
| PL364190A1 (en) | 2003-12-22 | 2005-06-27 | Politechnika Lubelska | Method and system for increasing efficiency of the hybrid solar system |
Also Published As
| Publication number | Publication date |
|---|---|
| PL218687B1 (en) | 2015-01-30 |
| PL395788A1 (en) | 2013-02-04 |
| EP2737550A2 (en) | 2014-06-04 |
| UA110846C2 (en) | 2016-02-25 |
| WO2013015698A3 (en) | 2013-11-21 |
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