EP2217866A2 - Système permettant l'utilisation de l'énergie solaire et pourvu d'un dispositif de dissipation de la chaleur dans le milieu ambiant, procédé de fonctionnement du système et utilisation - Google Patents

Système permettant l'utilisation de l'énergie solaire et pourvu d'un dispositif de dissipation de la chaleur dans le milieu ambiant, procédé de fonctionnement du système et utilisation

Info

Publication number
EP2217866A2
EP2217866A2 EP08858238A EP08858238A EP2217866A2 EP 2217866 A2 EP2217866 A2 EP 2217866A2 EP 08858238 A EP08858238 A EP 08858238A EP 08858238 A EP08858238 A EP 08858238A EP 2217866 A2 EP2217866 A2 EP 2217866A2
Authority
EP
European Patent Office
Prior art keywords
heat
heat exchange
reflector
exchange element
thermal
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.)
Withdrawn
Application number
EP08858238A
Other languages
German (de)
English (en)
Inventor
Ferdinand Schmidt
Andreas HÄBERLE
Michael Hermann
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP2217866A2 publication Critical patent/EP2217866A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F24S10/506—Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits formed by inflation of portions of a pair of joined sheets
    • 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
    • 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
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • 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
    • 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
    • F24S2010/71—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits the conduits having a non-circular cross-section
    • 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
    • F24S2023/87—Reflectors layout
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • the at least one heat exchange element has a near infrared emissivity, i. in a wavelength range of about 5 to 15 ⁇ m, of at least 0.85, preferably 0.94, particularly preferably 0.98.
  • the surface radiating during the radiation cooling is not penetrated by the rear side of the primary surface.
  • Mirror given but is located separately from it below the primary mirror (eg on the ground).
  • this variant can have cost advantages.
  • the surface radiating at night can be designed as a mat lying on the floor in the manner of a swimming pool absorber.
  • the above arranged primary mirror go in this variant at night in a vertical position, so that the radiating surface is aligned at the largest possible angle against the night sky.
  • a constructive advantage of this variant is that no hydraulic connections rotatable about the mirror axis are required.
  • the main purpose of the solar system is solar cooling rather than solar thermal power generation, it may be advantageous to integrate photovoltaic power generation into the system (e.g., if it is a system that is to be run in a self-sufficient manner disconnected from a grid).
  • a Fresnel collector when the secondary mirror and absorber are replaced by a PV module, it typically needs to be cooled to prevent overheating. If the flow temperature of the collector is sufficiently low, a liquid-cooled PV module can be switched directly to the beginning (flow) of a collector string. If the flow temperature of the collector for the solar cells is already too high, the PV modules can either be flowed through with water from a cold water storage (cooled down at night) or with water that is passed directly through the reflector elements during the day and cooled down there.
  • the collector according to the invention with integrated PV modules in small, decentralized units can be used to a) heat for a thermal to supply powered chiller that generates ice; b) provide heat for solar cooking and c) supply electricity, eg for a battery charging station.
  • a system represents a customized technology for the target regions, since 1. the system is at very low cost satisfies several basic needs, 2. a large part of the system can be manufactured in the destination country (support structure, mirror tracking system, possibly the mirror elements) and 3. the maintenance-prone parts of the system can be serviced by local technicians.
  • the central improvement over the prior art is that the surface of the reflectors of a concentrating solar collector by the invention has an added benefit as a heat exchanger surface.
  • a need for heat transfer to the environment exists both in solar thermal power plants (condensation heat) and in solar cooling applications, e.g. Re-cooling the waste heat of an active refrigeration system or direct cooling.
  • FIG. 2 shows a reflector element 1 of a Fresnel collector.
  • the basic construction is identical to the reflector 1 shown in FIG. 1, except that the element is flat and not parabolic.
  • FIG. 3 shows an alternative embodiment of the element 1 from FIG. 2, which is additionally provided with a rotation axis over which the reflector 1 can be turned or tilted.
  • the axis of rotation 5 can be formed at the same time as a tube 5 for supplying or discharging the heat carrier.
  • the distribution of the heat carrier takes place from the connecting pipe 5 into the channels 4, for example as explained in FIG. 5 or 6.
  • the reflective property of the mirrored surface 2 is indicated.

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

La présente invention concerne un système permettant l'utilisation de l'énergie solaire et pourvu d'un dispositif de dissipation de la chaleur dans le milieu ambiant, un procédé de fonctionnement du système et des possibilités d'utilisation dudit système. Le système se caractérise en particulier en ce qu'il peut être utilisé, le jour, pour produire de l'énergie thermique et/ou électrique à partir du rayonnement solaire et sert, la nuit, à refroidir un caloporteur.
EP08858238A 2007-12-04 2008-11-25 Système permettant l'utilisation de l'énergie solaire et pourvu d'un dispositif de dissipation de la chaleur dans le milieu ambiant, procédé de fonctionnement du système et utilisation Withdrawn EP2217866A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007058182A DE102007058182A1 (de) 2007-12-04 2007-12-04 System zur Solarenergienutzung mit Vorrichtung zur Wärmeabgabe an die Umgebung, Verfahren zum Betreiben des Systems sowie Verwendung
PCT/EP2008/009986 WO2009071222A2 (fr) 2007-12-04 2008-11-25 Système permettant l'utilisation de l'énergie solaire et pourvu d'un dispositif de dissipation de la chaleur dans le milieu ambiant, procédé de fonctionnement du système et utilisation

Publications (1)

Publication Number Publication Date
EP2217866A2 true EP2217866A2 (fr) 2010-08-18

Family

ID=40621001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08858238A Withdrawn EP2217866A2 (fr) 2007-12-04 2008-11-25 Système permettant l'utilisation de l'énergie solaire et pourvu d'un dispositif de dissipation de la chaleur dans le milieu ambiant, procédé de fonctionnement du système et utilisation

Country Status (3)

Country Link
EP (1) EP2217866A2 (fr)
DE (1) DE102007058182A1 (fr)
WO (1) WO2009071222A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3290822A1 (fr) * 2016-08-30 2018-03-07 Alfa Laval Corporate AB Échangeur de chaleur à plaques pour chauffage solaire

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* Cited by examiner, † Cited by third party
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ITCT20090007A1 (it) * 2009-06-19 2010-12-20 Cristina Maria Massarelli Sistema elettromeccanico di inseguimento e concentrazione solare a accumulo del calore
DE102011018382A1 (de) * 2011-04-15 2012-10-18 Alfred Trzmiel Verfahren zur Regenerierung von thermochemischen Sorptionsspeichern, vorzugsweise von Zeolith, und Vorrichtung zur Durchführung des Verfahrens
DE102013112378B4 (de) 2013-11-11 2021-04-22 Thyssenkrupp Rasselstein Gmbh Reflektor für solarthermische Systeme und Verfahren zur Herstellung eines solchen Reflektors
FR3022335B1 (fr) * 2014-06-16 2019-04-05 Centre National De La Recherche Scientifique Echangeur de chaleur a plaques
AT14762U1 (de) * 2015-04-02 2016-05-15 Stephan Mark Thaler Solar-Absorber
AT519364B1 (de) * 2017-05-29 2018-06-15 Joanneum Res Forschungsgmbh Strahlungskühler für eine Gebäudekühlung
US20210143773A1 (en) * 2019-08-13 2021-05-13 Todd Fillmore Sheerin Low Specific Mass Space Power System
CN113871505B (zh) * 2021-08-26 2024-07-12 山东高等技术研究院 一种基于相变蓄热与辐射制冷的反射式聚光光伏系统

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3290822A1 (fr) * 2016-08-30 2018-03-07 Alfa Laval Corporate AB Échangeur de chaleur à plaques pour chauffage solaire
WO2018041715A1 (fr) * 2016-08-30 2018-03-08 Alfa Laval Corporate Ab Échangeur de chaleur à plaques destiné au chauffage solaire
US10962308B2 (en) 2016-08-30 2021-03-30 Alfa Laval Corporate Ab Plate heat exchanger for solar heating

Also Published As

Publication number Publication date
WO2009071222A2 (fr) 2009-06-11
DE102007058182A1 (de) 2009-06-10
WO2009071222A3 (fr) 2010-03-11

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