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WO2013000713A2 - Installation solaire dotée d'un collecteur solaire et d'un convertisseur photovoltaïque ou thermoélectrique - Google Patents

Installation solaire dotée d'un collecteur solaire et d'un convertisseur photovoltaïque ou thermoélectrique Download PDF

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Publication number
WO2013000713A2
WO2013000713A2 PCT/EP2012/061242 EP2012061242W WO2013000713A2 WO 2013000713 A2 WO2013000713 A2 WO 2013000713A2 EP 2012061242 W EP2012061242 W EP 2012061242W WO 2013000713 A2 WO2013000713 A2 WO 2013000713A2
Authority
WO
WIPO (PCT)
Prior art keywords
solar
solar system
converter
evaporator
evaporator part
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.)
Ceased
Application number
PCT/EP2012/061242
Other languages
German (de)
English (en)
Other versions
WO2013000713A3 (fr
Inventor
Bernd Gromoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2013000713A2 publication Critical patent/WO2013000713A2/fr
Publication of WO2013000713A3 publication Critical patent/WO2013000713A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/60—Arrangements for cooling, heating, ventilating or compensating for temperature fluctuations
    • H10F77/63—Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling
    • H10F77/68—Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling using gaseous or liquid coolants, e.g. air flow ventilation or water circulation
    • 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
    • F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
    • F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
    • 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
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • 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
    • F24S23/79—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting reflective surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/50—Preventing overheating or overpressure
    • F24S40/55—Arrangements for cooling, e.g. by using external heat dissipating means or internal cooling circuits
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
    • 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the invention relates to a solar system with a Clarkol ⁇ lecturer and a photovoltaic or thermoelectric converter, which is aligned with respect to the solar collector such that the solar radiation is concentrated on the converter.
  • a solar system of the type described is example ⁇ way according to WO 2011/028742 AI known.
  • a solar panel in the form of a parabolic trough is used, wherein a photo- voltaic converter (a solar cell, for example) may be angeord ⁇ net in the focal axis of the parabolic trough.
  • a solar system is also referred to as a so- ⁇ -called fotovoltaic concentrating system (CPV).
  • CPV fotovoltaic concentrating system
  • Such arrangements are used to increase the force acting on the wall 1er amount of solar radiation to obtain a given cost components as large as possible Ausbeu ⁇ te of electrical energy.
  • the object of the invention is to provide a solar system with a solar collector and a photovoltaic or thermoelectric converter (hereinafter referred to as converter), in which comparatively much solar radiation can be concentrated on the converter.
  • converter photovoltaic or thermoelectric converter
  • thermosyphon circuit for cooling the converter a thermosyphon circuit is provided with an evaporator part and a condenser part, wherein the evaporator part is thermally conductively connected to the transducer.
  • a thermally conductive connection is meant a connection between these components which dissipates the heat comparatively well. The connection itself should therefore take so good Minim ⁇ least the heat, as the material of the transducer or the material of the evaporator part forming thermosiphon circulation - depending on which conducts heat worse of the two structural units.
  • si ⁇ cher in this manner is advantageous si ⁇ cherines that no thermal insulation is effected by the connection between the thermal ⁇ siphon circuit and the converter, but that this compound is at least neutral effect in terms of heat transfer between the transducer and the thermosyphon circulation.
  • the compound Zvi ⁇ rule converter and the evaporator part of the thermosyphon circuit assembly can be realized technically, for example, a contact pressure.
  • the evaporator part is connected to the converter via a solder connection or an adhesive connection. In this way, advantageously, the heat transfer between the evaporator part and the converter can be optimized by the material connecting these units rests with the largest possible surface on the ⁇ adjacent parts.
  • a solder joint improves the heat transfer advantageous in that relatively good conductive metallic materials can be used for the Ver ⁇ binding between the units.
  • the transducer may be metallically coated on the side facing the evaporator part.
  • the thermal conductivity ⁇ ness of the connection between the evaporator portion and the converter is greater than 200 W / (m K). This is a value for the thermal conductivity which is typical for metallic materials.
  • copper has a thermal conductivity of 403 W / (m K) (ie watts per meter times Kelvin).
  • the heat transfer can be done advantageously with a low thermal resistance.
  • the evaporator part is protected by a sun visor from direct sunlight. This sun visor may advantageously have a surface reflecting at least parts of the sunray radiation.
  • the cooling power provided by the evaporator part is available alone or at least mainly for cooling the converter. If the sun visor itself reflects at least parts of the sunray , this has the additional advantage that the sun visor heats up less. As a result, it is possible to prevent a thermal shock from the sun visor
  • a particularly advantageous embodiment of the invention is obtained when the solar collector is designed as a parabolic trough and the evaporator part is tubular and extends from one end of the parabolic trough to the other end. Just as the transducer, which is arranged in the focal axis of the parabolic trough, the evaporator part then runs over the entire length of the parabolic trough and can ensure cooling of the transducer over its entire length.
  • thermosiphon circulation ensures the evaporator part must be on mountain directed and aligned parabolic troughs with their longitudinal axis at an angle to the horizontal. Only in this way can the evaporating working medium in the evaporator section of the thermosiphon circuit flow to the upper end of the evaporator section where it releases the heat in a condenser section again. This process is driven by gravity and is therefore dependent on the said orientation of the evaporator part.
  • the evaporator part in his Cross section is adapted to the contour of the transducer.
  • this may have a flattened portion, on which the preferably flat-shaped transducer elements can be ⁇ solidifies.
  • the already mentioned solder joint can advantageously be used with a uniformly thick joint gap. The available surface for a heat transfer is thus advantageously formed maximum.
  • the capacitor part of the thermosyphone circuit is protected by a cover from the solar radiation.
  • the working medium of the thermosyphon circulation should condense, i. H. Give off heat. Therefore, an additional introduction of heat in this area should be avoided.
  • the sun visor advantageously reduces the introduction of solar energy into the condenser part.
  • the capacity of the storage for the cooling medium is dimensioned so that the cooling requirement during the day can be satisfied by taking advantage of the cooling at night.
  • the fact is taken into account that solar systems are only during the day in operation when the sunlight is converted. At night there is no light for Availability checked ⁇ supply, so that the converter does not require refrigeration.
  • Au ⁇ ßerdem cools the vicinity of the solar system, so the thermosiphon circuit can deliver more heat to the environment than during the day. If sufficient cooling medium is kept in the thermosiphon circuit, it can be stored in a memory. During the day, this storage tank is warmed up by the fact that the cooling medium can deliver less heat to the environment and absorb more heat from the transducers. Therefore, the cooling medium will heat up throughout the day. At night, this heat can be given off again.
  • the cooling capacity of the thermosiphon circuit can be advantageously increased in this way.
  • thermosyphon circuit Another advantageous measure to increasemékapa ⁇ capacity of the thermosyphon circuit is that the con- can be connected downstream of an aftercooler. This allows a further cooling of the cooling medium after Verflüs ⁇ sist done in the condenser part, before this is supplied to the evaporator part again.
  • FIG. 1 shows a cross section through an exemplary embodiment of the solar installation according to the invention, in which a parabolic trough and the evaporator section of the thermosyphon circuit can be seen
  • Figure 2 shows the cross section through an evaporator part of
  • Thermosyphone circuit with soldered transducers according to another embodiment of the inventions ⁇ inventive solar system and
  • FIG. 3 is a side view, partially in section, of another embodiment of the solar system according to the invention.
  • a solar collector 11 for the solar system is shown in section.
  • the focal axis of the solar panel designed as a parabolic trough is perpendicular to the dargestell th plane.
  • transducer 12 are arranged ⁇ , which is indicated by means of exemplary drawn sun rays 13 that the solar collector 11 bundles the sunlight on the transducer.
  • the transducers are photovoltaic elements (solar cells). These heat up due to the irradiation of the sunlight and are represented by the evaporator part 14 of a thermosyphon circuit 15 (see FIG Also Figure 3) cooled.
  • the evaporator part 14 is further protected on the side facing away from the solar collector 11 side with a sun visor 16 from direct sunlight. Therefore, this is mainly heated by a heat transfer of the heat generated in the transducers 12, so that the provided in the thermosyphone circuit and not closer Darge ⁇ set working medium can evaporate.
  • the sun visor 16 is provided with a surface 19 which strongly reflects the sun rays 13 so that the sun visor itself warms up as little as possible and therefore can supply as little heat as possible to the evaporator part 14 by convection.
  • the evaporator part has flattened preparation ⁇ surface 20 in cross-section, so that the flat transducers may be introduced ⁇ ge 12 over its entire width with the evaporator portion in contact.
  • FIG. 2 shows a different profile of the evaporator part 14 as a section.
  • This is a circular We ⁇ sentlichen cross-section which, however, also has two flats 20 at which the converter 12 with a solder layer 21 as a thermally well conducting heat ⁇ transition layer having a thermal conductivity greater than 200 W / (m K) can be attached.
  • a soldering of the converter 12 is possible with the metallic evaporator part 14, the transducers 12 are provided at their part of the evaporator 14 supplied ⁇ facing side with a metallization 22nd
  • the metallization layer can be applied to the rear side of the transducers, for example by means of sputtering.
  • the evaporator part can be made for example of a copper tube.
  • Another possibility is to use an extruded aluminum profile. 3 shows the entire thermosyphon circuit is familiar to ⁇ he 15th In the evaporator part 14, the working medium evaporates and rises. Therefore, the solar collector 11 must also be directed with its focal axis upwards and not be mounted with waa ⁇ fair focal axis.
  • a supply line 25 and a discharge line 26 in the immediate vicinity of the evaporator part 14 must then be elastically formed at ⁇ example by hoses.
  • thermosyphon circuit 15 The evaporating in the evaporator part 14, working medium rises upwardly and passes through a capacitor portion 27 where the Ar ⁇ beitsmedium heat to cooling fins 28 and thereby condensed. It is then fed to a memory 29.
  • the cooling medium can be pumped during the night with a circulation pump 30 in the liquid state through the thermosyphon circuit and releases the heat stored during the day to the cooler night air.
  • an aftercooler 31 work with cooling fins 28, the capacitor part 27 and the evaporator section 14 each as a cooler, since these areas of the thermosiphon circuit are executed with good thermal conductivity and allow a heat ⁇ discharge of the working medium.
  • lying outside of the solar collector 11 of the thermosyphon circuit 15 is shaded with a cover 32.

Landscapes

  • 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

L'invention concerne une installation solaire comprenant un collecteur solaire (11) et un convertisseur photovoltaïque ou thermoélectrique (12). Ce dernier est disposé, de préférence, dans l'axe focal du collecteur solaire. Pour assurer une évacuation fiable de la chaleur produite là, l'élément évaporateur (14) d'un circuit à thermosiphon (non représenté) est disposé de manière à garantir un transfert de chaleur du convertisseur (12) jusqu'à l'élément évaporateur (14). Cela permet d'améliorer le rendement du convertisseur (12) et d'éviter toute surcharge thermique.
PCT/EP2012/061242 2011-06-29 2012-06-14 Installation solaire dotée d'un collecteur solaire et d'un convertisseur photovoltaïque ou thermoélectrique Ceased WO2013000713A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011078300.8 2011-06-29
DE102011078300A DE102011078300A1 (de) 2011-06-29 2011-06-29 Solaranlage mit einem Sonnenkollektor und einem fotovoltaischen oder thermoelektrischen Wandler

Publications (2)

Publication Number Publication Date
WO2013000713A2 true WO2013000713A2 (fr) 2013-01-03
WO2013000713A3 WO2013000713A3 (fr) 2013-05-30

Family

ID=46319730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/061242 Ceased WO2013000713A2 (fr) 2011-06-29 2012-06-14 Installation solaire dotée d'un collecteur solaire et d'un convertisseur photovoltaïque ou thermoélectrique

Country Status (2)

Country Link
DE (1) DE102011078300A1 (fr)
WO (1) WO2013000713A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503108A (en) * 2013-06-10 2013-12-18 Gert Pille Cooling Photo-Voltaic Cells Using Thermosyphon Cooling Circuit
CN115183307A (zh) * 2022-07-05 2022-10-14 重庆赛迪热工环保工程技术有限公司 一种聚光太阳能热电联产集热设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103644659B (zh) * 2013-12-11 2015-08-05 李贻曦 变焦式太阳能热电储能器
DE102014006985B4 (de) * 2014-05-08 2017-02-02 Friedrich Grimm Parabolrinnenkollektor mit einem Sekundärkonzentrator und einem Empfängerelement
GB2614024B (en) * 2021-08-11 2024-04-03 Solar Polar Ltd Solar thermal collector

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2011028742A1 (fr) 2009-09-02 2011-03-10 3M Innovative Properties Company Ensemble panneau de miroir solaire à concentration avec raidisseur ondulé

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DE3006738A1 (de) * 1980-02-22 1981-08-27 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Verfahren und vorrichtung zur kuehlung eines absorbers
NL1006838C2 (nl) * 1997-08-25 1999-03-04 Univ Eindhoven Tech Paneelvormige hybride fotovoltaïsche/thermische inrichting.
US8082755B2 (en) * 2008-05-12 2011-12-27 Arizona Board Of Regents Method of manufacturing large dish reflectors for a solar concentrator apparatus
US20100031991A1 (en) * 2008-08-07 2010-02-11 Fujikura Ltd. Concentrating photovoltaic generation system
US20110290302A1 (en) * 2010-03-18 2011-12-01 Yi Pang Rugged concentrating hybrid solar energy module
US20110226308A1 (en) * 2010-03-18 2011-09-22 Yi Pang Solar energy hybrid module

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011028742A1 (fr) 2009-09-02 2011-03-10 3M Innovative Properties Company Ensemble panneau de miroir solaire à concentration avec raidisseur ondulé

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503108A (en) * 2013-06-10 2013-12-18 Gert Pille Cooling Photo-Voltaic Cells Using Thermosyphon Cooling Circuit
CN115183307A (zh) * 2022-07-05 2022-10-14 重庆赛迪热工环保工程技术有限公司 一种聚光太阳能热电联产集热设备
CN115183307B (zh) * 2022-07-05 2024-04-09 重庆赛迪热工环保工程技术有限公司 一种聚光太阳能热电联产集热设备

Also Published As

Publication number Publication date
DE102011078300A1 (de) 2013-01-03
WO2013000713A3 (fr) 2013-05-30

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