DE102007001206A1 - Photo-voltaic module i.e. hybrid module, has cooling system integrated with module body, where body includes cells and channels for discharging thermal energy in front, inner and rear areas, and aluminum frame provided around body - Google Patents

Photo-voltaic module i.e. hybrid module, has cooling system integrated with module body, where body includes cells and channels for discharging thermal energy in front, inner and rear areas, and aluminum frame provided around body Download PDF

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Publication number
DE102007001206A1
DE102007001206A1 DE102007001206A DE102007001206A DE102007001206A1 DE 102007001206 A1 DE102007001206 A1 DE 102007001206A1 DE 102007001206 A DE102007001206 A DE 102007001206A DE 102007001206 A DE102007001206 A DE 102007001206A DE 102007001206 A1 DE102007001206 A1 DE 102007001206A1
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Prior art keywords
module
cooling system
photovoltaic
thermal energy
cells
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DE102007001206A
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German (de)
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Georg Schoell
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Individual
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H01L31/0521—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
    • 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
    • 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 module has a cooling system integrated with a module body, where the body includes photo-voltaic cells in a front area and includes channels for discharging thermal energy in inner and rear areas, where energy yield is increased by simultaneous production of photo-voltaic and thermal energy. A cooling effect is obtained by discharging the thermal energy, which causes synergetic increase in an output of the cells. A cooling medium directly droops into the module body and directly cools the photo-voltaic cells. An aluminum frame (H) is provided around the module body.

Description

Photovoltaikmodule aus Silizium oder anderem Halbleitermaterial sind naturgemäß sehr wärmeempfindlich. Die Leistung von Halbleitern fällt mit zunehmender Modultemperatur um ca. 0,5% pro Grad Celsius. Dadurch können Photovoltaikmodule gerade bei starker Sonneneinstrahlung wie sie in Wüstenregionen herrscht nicht ihre volle Leistung erzielen. Durch eine geeignete Kühlung kann eine wesentliche Leistungssteigerung erzielt werden. In der Vergangenheit wurden bereits ähnliche Systeme zum Patent angemeldet. Diese Systeme waren jedoch nur eine Verbindung (Verklebung) von zwei bereits bestehenden Komponenten zu einem zusammengefügten Produkt. Dies hat den Nachteil, dass durch die unterschiedlichen Materialien erhebliche Wärmespannungen auftreten die entweder zum Bruch der Glasfront führen oder es zu Ablösungen zwischen Solarmodul und Kühlkörper kommt und dadurch keine effektive Wärmeübertragung mehr möglich ist. Ein langfristiger Betrieb bei stark schwankenden Temperaturen wie dies in Wüstenregionen zwischen Tag und Nacht ständig der Fall ist, ist nicht gegeben.photovoltaic modules Of silicon or other semiconductor material are naturally very sensitive to heat. The performance of semiconductors falls with increasing module temperature by about 0.5% per degree Celsius. Thereby can Photovoltaic modules especially in strong sunlight like them in desert regions does not prevail to achieve its full performance. By a suitable cooling a significant increase in performance can be achieved. In the Have already been similar Systems patent pending. However, these systems were only one connection (Bonding) of two existing components to one assembled product. This has the disadvantage that due to the different materials considerable thermal stresses which either lead to the breakage of the glass front or cause separation between them Solar module and heat sink comes and therefore no effective heat transfer more is possible is. A long-term operation with strongly fluctuating temperatures like this in desert regions between day and night all the time the case is not given.

Die Erfindung betrifft ein Photovoltaikmodul mit einem speziell ausgeführten Modulkörper welcher mit einem Medium durchströmt werden kann. Durch die Ableitung der thermischen Sonnenenergie direkt im innern des Modulkörpers wird zum einen die energetische Bilanz gesteigert, und zum anderen steigert der Kühleffekt an den Photovoltaikzellen die Leistung zusätzlich. Es tritt somit ein Synergieeffekt auf der durch das gemeinsame Betreiben des photovoltaischen und thermischen Systems entsteht. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass durch die besondere Formgebung des Modulkörpers (1 A–E) gewisse Hohlräume entstehen die mit einer Kühlflüssigkeit direkt durchströmt werden können. Es handelt sich um ein Produkt aus weitestgehend einem Material und einem vollständig in das Solarmodul integrierten Kühlbereich (D). Dies hat den Vorteil dass keine Wärmespannungen aufgrund von unterschiedlichen Materialien mehr auftreten. Durch die direkte Durchströmung des Modulkörpers wird eine optimale Kühlung der Photovoltaikzellen erzielt ohne dass Wärmespannungen im System auftreten. Das Konzept kann bei siliziumbasierten Poly-, Mono- oder Amorphsystemen sowie bei allen Dünnschichtsystemen und Systemen die auf Glas oder glasähnlichem Werkstoff aufgebaut sind, angewandt werden. Im Bereich der Anschlußbox gibt es keine sogenannten „Hot Spots" mehr weil die Anschlußbox nun hinter den Kühlkanälen sitzt. Selbst wenn keine Kühlflüssigkeit durch das System fließt oder das Modul nicht als Hybridmodul betrieben wird, nimmt das Modul dadurch keinen Schaden da die Temperatur überall gleichmäßig ansteigt und keine Wärmespannungen entstehen.The invention relates to a photovoltaic module with a specially designed module body which can be flowed through with a medium. By dissipating the thermal solar energy directly inside the module body, on the one hand, the energy balance is increased, and on the other hand, the cooling effect on the photovoltaic cells additionally increases the power. Thus, there is a synergy effect arising from the joint operation of the photovoltaic and thermal system. This object is achieved in that by the special shape of the module body ( 1 A-E) certain cavities arise which can be flowed through directly with a cooling liquid. It is a product made of a material as far as possible and a cooling area (D) completely integrated into the solar module. This has the advantage that no thermal stresses due to different materials occur more. The direct flow through the module body optimum cooling of the photovoltaic cells is achieved without thermal stresses occur in the system. The concept can be applied to silicon-based poly, mono- or amorphous systems as well as to all thin-film systems and systems based on glass or glass-like material. In the area of the connection box, there are no so-called "hot spots" because the connection box now sits behind the cooling channels, even if no coolant flows through the system or the module is not operated as a hybrid module, the module will not be damaged as the temperature is uniform everywhere rises and no thermal stresses arise.

Durch zwei spezielle Tankanschlußstutzen (G) welche nur von einer Seite her montiert werden, wird das Kühlmittel direkt in den Modulkörper ein- und ausgeleitet. Um sicher zu stellen dass nur die Solarzellen gekühlt werden und keine thermische Energie aus der Umgebung zufließt, kann die Rückseite des Moduls mit einer Isolierschicht (F) isoliert werden. Die Verwendung von sogenannten „Bifacial Cells", welche Licht von beiden Seiten des Solarmoduls aufnehmen, ist ebenfalls möglich da der Modulkörper des Hybridmoduls von beiden Seiten lichtdurchlässig bleibt. Beim Einsatz derartigen Zellen ist dann auf die Isolierung zu verzichten.By two special tank connections (G) which are mounted only from one side, the coolant directly into the module body in and out. To make sure that only the solar cells chilled and no thermal energy flows from the environment, can the back of the Module with an insulating layer (F) to be isolated. The usage of so-called "Bifacial Cells", which light of Recording both sides of the solar module is also possible the module body the hybrid module remains translucent from both sides. When using such Cells is then to dispense with the insulation.

Um den Modulkörper zu schützen kann er sinnvoller weise mit einem Aluminiumrahmen (H) versehen werden, wie dies bei Standardmodulen allgemein üblich ist.Around the module body to protect he can usefully provide with an aluminum frame (H) as is common practice with standard modules.

Claims (7)

Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul, dadurch gekennzeichnet, dass der Modulkörper im Wesentlichen aus einem Material besteht der im vorderen Bereich Photovoltaikzellen und im inneren und hinteren Bereich Kanäle für die Abnahme thermischer Energie besitzt.Photovoltaic module with integrated cooling system = hybrid module, characterized in that the module body consists essentially of a material which has photovoltaic cells in the front region and channels for the removal of thermal energy in the inner and rear regions. Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul nach Anspruch 1, dadurch gekennzeichnet, dass durch die gleichzeitige Erzeugung von photovoltaischer und thermischer Energie der energetische Ertrag gesteigert wird und durch die Abnahme der thermischen Energie ein Kühleffekt erzielt wird, der synergetisch eine Leistungssteigerung der Photovoltaikzellen hervorruft.Photovoltaic module with integrated cooling system Hybrid module according to claim 1, characterized in that the simultaneous generation of photovoltaic and thermal Energy of the energetic yield is increased and by the decrease the thermal energy a cooling effect achieved, the synergetic increase in performance of the photovoltaic cells causes. Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul nach Anspruch 1 und 2, dadurch gekennzeichnet, dass durch die Verwendung gleicher Materialien für den vorderen und hinteren Bereich des Modulkörpers keine thermischen Spannungen auftreten und sich dadurch die Lebensdauer Betriebsicherheit wesentlich erhöht.Photovoltaic module with integrated cooling system Hybrid module according to claim 1 and 2, characterized in that by using the same materials for the front and rear Area of the module body no thermal stresses occur and thereby the service life Operational safety significantly increased. Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass das Kühlmedium direkt in den Modulkörper fliest und die Photovoltaikzellen direkt kühlen.Photovoltaic module with integrated cooling system Hybrid module according to claim 1 to 3, characterized in that the cooling medium directly into the module body flies and cool the photovoltaic cells directly. Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die elektrische Anschlußbox hinter den Kühlkanälen sitzt und somit eine gleichmäßige Kühlung auf der gesamten Modulfläche erreicht wird.Photovoltaic module with integrated cooling system Hybrid module according to claim 1 to 4, characterized in that the electrical connection box behind sits the cooling channels and thus a uniform cooling the entire module area is reached. Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass dieses System auch bei doppelseitigen Solarzellen (Bifacial cells) eingesetzt werden kann und ohne Einschränkung funktioniert.Photovoltaic module with integrated cooling system = hybrid module according to claim 1 to 5, characterized characterized in that this system can also be used in double-sided solar cells (Bifacial cells) and works without restriction. Photovoltaikmodul mit integriertem Kühlsystem = Hybridmodul nach Anspruch 1 bis 6, dadurch gekennzeichnet, dass der hydraulische Anschluss über spezielle, einseitig montierbare Tankanschlüsse realisiert wird.Photovoltaic module with integrated cooling system Hybrid module according to claim 1 to 6, characterized in that the hydraulic connection over special, one-way mountable tank connections is realized.
DE102007001206A 2007-01-05 2007-01-05 Photo-voltaic module i.e. hybrid module, has cooling system integrated with module body, where body includes cells and channels for discharging thermal energy in front, inner and rear areas, and aluminum frame provided around body Ceased DE102007001206A1 (en)

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DE102007001206A DE102007001206A1 (en) 2007-01-05 2007-01-05 Photo-voltaic module i.e. hybrid module, has cooling system integrated with module body, where body includes cells and channels for discharging thermal energy in front, inner and rear areas, and aluminum frame provided around body

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DE102007001206A DE102007001206A1 (en) 2007-01-05 2007-01-05 Photo-voltaic module i.e. hybrid module, has cooling system integrated with module body, where body includes cells and channels for discharging thermal energy in front, inner and rear areas, and aluminum frame provided around body

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DE102007001206A1 true DE102007001206A1 (en) 2008-07-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066050A (en) * 1983-09-20 1985-04-16 Sanyo Electric Co Ltd Flat sheet type hybrid collector
DE29905187U1 (en) * 1999-03-22 1999-06-02 Bock Manfred Solar roof structure
US20020121298A1 (en) * 2001-01-15 2002-09-05 Konold Annemarie Hvistendahl Combined solar electric power and liquid heat transfer collector panel
US20040025931A1 (en) * 2002-08-09 2004-02-12 S.I.E.M. S.R.L. Solar panel for simultaneous generation of electric and thermal energy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6066050A (en) * 1983-09-20 1985-04-16 Sanyo Electric Co Ltd Flat sheet type hybrid collector
DE29905187U1 (en) * 1999-03-22 1999-06-02 Bock Manfred Solar roof structure
US20020121298A1 (en) * 2001-01-15 2002-09-05 Konold Annemarie Hvistendahl Combined solar electric power and liquid heat transfer collector panel
US20040025931A1 (en) * 2002-08-09 2004-02-12 S.I.E.M. S.R.L. Solar panel for simultaneous generation of electric and thermal energy

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