WO1996029550A1 - Collecteur d'energie solaire - Google Patents

Collecteur d'energie solaire Download PDF

Info

Publication number
WO1996029550A1
WO1996029550A1 PCT/FI1996/000159 FI9600159W WO9629550A1 WO 1996029550 A1 WO1996029550 A1 WO 1996029550A1 FI 9600159 W FI9600159 W FI 9600159W WO 9629550 A1 WO9629550 A1 WO 9629550A1
Authority
WO
WIPO (PCT)
Prior art keywords
collector
absorber
solar energy
cover
penetrable
Prior art date
Application number
PCT/FI1996/000159
Other languages
English (en)
Inventor
Seppo Peltola
Toivo Kärnä
Asko Mäisti
Paavo Penttinen
Jukka-Pekka Nieminen
Original Assignee
Neste Oy
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 Neste Oy filed Critical Neste Oy
Priority to AU49464/96A priority Critical patent/AU4946496A/en
Publication of WO1996029550A1 publication Critical patent/WO1996029550A1/fr

Links

Classifications

    • 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
    • F24S40/40—Preventing corrosion; Protecting against dirt or contamination
    • F24S40/42—Preventing condensation inside solar modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/67—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/61—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures
    • F24S25/615—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for fixing to the ground or to building structures for fixing to protruding parts of buildings, e.g. to corrugations or to standing seams
    • 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
    • F24S40/40—Preventing corrosion; Protecting against dirt or contamination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
    • F24S80/56—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by means for preventing heat loss
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/70—Sealing means
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • 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
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention concerns a collector of solar energy, which includes a cover pen ⁇ etrable by light and an absorber as well as a system of flow ducts in the absorber.
  • the prior-art collectors of solar energy are, as a rule, manufactured as follows.
  • the collector consists of absorber elements, which are placed inside an insulated box-like structure.
  • the cover material of the side that absorbs sunlight i.e. the cover penetrable by light
  • the cover material of the side that absorbs sunlight is either glass or a plastic that has good optical properties, such as PC plastic.
  • the absorbers are manufactured as separate elements.
  • the construction of an absorber element can be, for example, plate-like or narrow, strip-shaped, depending on the mode of manufacture.
  • the pressure-proof liquid space in the interior of absorber elements is either tubular or a space of a wider surface placed between two plates.
  • absorber elements As the construction material of absorber elements, it is possible to use various metals, such as, for example, aluminum, stainless steel, copper, etc. Also various plastic and composite materials can be concerned.
  • the face that receives thermal radiation of the sun in the absorber elements is treated with a coating that absorbs well, for example with black chro ⁇ mium, black nickel, a special paint or a special tape.
  • the object of the present invention is to provide an improvement over the prior-art constructions of collectors of solar energy. It is a more specific object of the invention to provide a collector of solar energy whose operability is better, in which the thermal losses are lower, and whose service life is longer than in the solutions known from the prior art.
  • the objectives of the present invention are achieved by means of a collector of solar energy which is characterized in that the space between the cover penetrable by light and the absorber has been formed as a hermetically sealed space.
  • the collector in accordance with the invention consists of a cover part, i.e. a transparent cover, which is made, for example, of tempered glass, of a plate-like absorber preferably of the same size, and of an edge profile fitted between the cover part and the absorber, which profile is preferably glued by means of special adhesive or fixed by means of an adhesive tape, so that a hermetically sealed absorber-cover assembly is formed.
  • the intermediate space is filled either with air or with a suitable shield gas, such as, for example, argon, up to a purposeful pressure.
  • a moisture-absorbing material is preferably placed, either in the edge profile or in separate structures. In this way, between the transparent cover and the absorber element, a hermetically closed intermediate space has been provided, which is thermally insulating, which remains dry, and which promotes the operability of the collector and increases its service life.
  • the space between the absorber and the cover is hermetically sealed and contains a material that absorbs moisture, condensation of moisture, which often occurs in collectors, and consequent reduced transmission of radiation cannot take place. Prevention of condensation of moisture also provides the advantage that the condensed water cannot deteriorate the capacity of the coating on the absorber.
  • the absorber plate can also be coated with coatings sensitive to moisture, such as with black nickel, without deterioration of the absorption capacity.
  • a gas of large molecules such as, for example, argon
  • the proportion of convective transfer of heat is reduced and, thereby, the thermal capacity of the collector is improved.
  • the cover glass cannot be contaminated from inside, which is the case in a conventional ventilated collector construction.
  • materials such as, for example, EPS or PU, from which, at high temperatures, solvents can be liberated and be condensed further on the cover.
  • the system of flow ducts in the absorber is preferably made of a continuous pipe, which is fixed into a groove that has been pressed into the absorber plate, for example, by soldering.
  • the groove is directed towards the cover of the collector and is deep enough so that the neutral axis of the flow pipe is placed at the side of the cover, seen from the absorption face of the absorber element.
  • the space between the absorber and the cover can be filled with an aerogel granulate, which operates as a transparent insulator.
  • Aerogel is silicagel-based, highly porous, penetrable by light, even transparent, but at the same time a very good thermal insulation.
  • aerogel is an excellent insulation material and optically sufficiently transparent, but it does not tolerate moisture.
  • the hermetic construction of the collector in accordance with the invention permits the use of aerogel and, thereby, low thermal losses taking place through the front face of the collector.
  • the absorber-cover assembly in accordance with the invention can be used in different applications while using a box construction suitable for the requirements in each particular case.
  • the absorber-cover assembly in accordance with the invention can be fitted in a housing so as to make an ordinary collector to be installed on a face, it can be integrated in the constructions of a roof, in which case the insulation in the roof also operates as an insulation of the collector, or a number of absorber- cover assemblies can be fitted in one box so as to make a large module.
  • the high variety of different applications of the absorber-cover assembly in accordance with the invention permits series production of the essential component of the collector and, thus, remarkable economies in the costs of production.
  • Figure 1 is a schematic sectional view of a preferred embodiment of a collector in accordance with the invention.
  • Figure 2 is a schematic sectional view of a second preferred embodiment of a collector in accordance with the invention.
  • the collector of solar energy in accordance with the invention is denoted generally with the reference numeral 10.
  • the principal components of the collector 10 are a cover 11 penetrable by light and a plate-like absorber 12.
  • the cover 11 penetrable by light can be a cover part, for example, made of tempered glass.
  • a hermetically sealed intermediate space 17 has been formed between the cover part 11 penetrable by light and the absorber 12.
  • the hermetic space 17 has been provided by means of an edge profile 18. In the edge profile 18, it is possible to place a material 18a that absorbs moisture.
  • the coating on the absorber 12 is denoted with the reference numeral 12a.
  • a heat transfer medium 14 flows in the system of flow ducts 13 in the absorber 12, a heat transfer medium 14 flows.
  • the system of flow ducts 13 may be, for example, a system of copper pipes, and as the heat transfer medium 14 it is possible to use water, a mixture of water and glycol, heat transfer fluids, etc. As the heat transfer medium 14, it is preferable to use a heat transfer medium that does not freeze under any conditions of operation.
  • the insulation constructions of the collector 10 are denoted with the reference numerals 15 and 16. In this embodiment, to one side of the edge profile 18, a mastic 19 has been applied, and after that the insulation 20.
  • the reference numeral 21 denotes seals, which prevent access of water through the corners of the cover part 11 penetrable by light into the interior of the collector 10.
  • the frame part of the collector 10 consists of frame parts 22a and 22b.
  • a shield fillet 23 has been fitted in the frame part 22a, which fillet protects the pipe system 13 that interconnects the collectors.
  • a U-section beam or profile 24 is attached to the frame part 22b.
  • the collector 10 is attached from its frame part 22b to a roof 25 by means of a fastening member 26.
  • the fastening member 26 it is possible to use, for example, a bolt, which is fitted to pass through a hole made into the U-section profile 24.
  • the reference numeral 27 denotes the back plate, which protects the insulations 15 and 16. If necessary, between the insulations 15 and 16, it is possible to use a support lath 28. In the collector 10, it is preferable to use an insulating fastening member 29, which presses the absorber 12, the edge profile 18 and the transparent cover part 11 into such a compact construction that water has not access through the seals 21.
  • the embodiment shown in Fig. 2 differs from the embodiment shown in Fig. 1 in the respect that, in the embodiment shown in Fig. 2, the edge profile has been substituted for by a profile 18' that has been bent substantially to L-shape.
  • the profile 18' may be, for example, the aluminum plate that is used as the absorber 12, whose edge has been bent in the way shown in Fig. 2 to make the component 18' .
  • a separate construction element 18b in which a material that absorbs moisture is contained.
  • an insulation fillet 30 is placed, which may be made, for example, of reinforced plastic.
  • the reference numeral 31 denotes an aluminum foil, whose inner face is an adhesive face. Such an aluminum foil 31 guarantees that the sealing between the parts 18 ',30 and 11 is as good as possible.
  • the frame part of the collector 10 consists of a unified frame part 22, in which there is preferably a curved recess 32 for fixing the shield fillet 23 shown, for example, in Fig. 1.
  • the reference numeral 33 denotes notches that prevent movements of the insulating fastening member 29 as a result of possible thermal expansion.
  • the flow pipe 13 can be fixed to the aluminum plate 12, for example, by means of the soft solder method.
  • the fixing can also be carried out mechanically by pressing the pipe 13 into the groove 12b that has been pressed into the plate 12 and/or by using a heat transfer mastic.
  • the flow pipe 13 can also be fixed to the plate 12, for example, by gluing. If the pipe 13 has to be fixed to a plane sheet face 12, the soft solder method is, of course, the most natural one.

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)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

L'invention concerne un collecteur (10) d'énergie solaire comprenant un couvercle (11) laissant passer la lumière et un élément d'absorption (12) ainsi qu'un système de conduits (13) situés dans ledit élément (12). L'espace entre le couvercle (11) et l'élément d'absorption (12) est un espace hermétiquement fermé (17).
PCT/FI1996/000159 1995-03-21 1996-03-18 Collecteur d'energie solaire WO1996029550A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49464/96A AU4946496A (en) 1995-03-21 1996-03-18 Collector of solar energy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI951320A FI103609B (fi) 1995-03-21 1995-03-21 Aurinkokeräin
FI951320 1995-03-21

Publications (1)

Publication Number Publication Date
WO1996029550A1 true WO1996029550A1 (fr) 1996-09-26

Family

ID=8543094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1996/000159 WO1996029550A1 (fr) 1995-03-21 1996-03-18 Collecteur d'energie solaire

Country Status (3)

Country Link
AU (1) AU4946496A (fr)
FI (1) FI103609B (fr)
WO (1) WO1996029550A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998029698A1 (fr) * 1996-12-27 1998-07-09 Neste Oy Structure de cadre pour collecteur d'energie solaire
DE19915504A1 (de) * 1999-04-07 2000-10-19 Schueco Int Kg Rahmenprofil für einen Sonnenkollektor
EP1469259A2 (fr) * 2003-03-24 2004-10-20 SCHÜCO International KG profil de cadre pour un collecteur solaire
NL1037010C2 (en) * 2009-06-03 2010-12-08 Ecofys Netherlands B V A method of mounting a multitude of devices for hanessing solar energy, a positioning body for use in said method, a clamp guiding body, and a prefab roof element.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003363A (en) * 1974-06-10 1977-01-18 Abraham Grossman Solar panel construction
US4803972A (en) * 1985-02-12 1989-02-14 Janson Goesta Solar-energy collector
US5167218A (en) * 1986-03-31 1992-12-01 David Deakin Solar collector having absorber plate formed by spraying molten metal
DE4232367A1 (de) * 1991-11-22 1993-05-27 Solar Diamant Syst Sonnenkollektor
DE4217060A1 (de) * 1992-05-22 1993-11-25 Interpane Entw & Beratungsges Sonnenenergiekollektor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003363A (en) * 1974-06-10 1977-01-18 Abraham Grossman Solar panel construction
US4803972A (en) * 1985-02-12 1989-02-14 Janson Goesta Solar-energy collector
US5167218A (en) * 1986-03-31 1992-12-01 David Deakin Solar collector having absorber plate formed by spraying molten metal
DE4232367A1 (de) * 1991-11-22 1993-05-27 Solar Diamant Syst Sonnenkollektor
DE4217060A1 (de) * 1992-05-22 1993-11-25 Interpane Entw & Beratungsges Sonnenenergiekollektor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998029698A1 (fr) * 1996-12-27 1998-07-09 Neste Oy Structure de cadre pour collecteur d'energie solaire
DE19915504A1 (de) * 1999-04-07 2000-10-19 Schueco Int Kg Rahmenprofil für einen Sonnenkollektor
DE19915504B4 (de) * 1999-04-07 2006-07-20 SCHÜCO International KG Rahmenprofil für einen Sonnenkollektor
EP1469259A2 (fr) * 2003-03-24 2004-10-20 SCHÜCO International KG profil de cadre pour un collecteur solaire
EP1469259A3 (fr) * 2003-03-24 2011-02-16 SCHÜCO International KG profil de cadre pour un collecteur solaire
NL1037010C2 (en) * 2009-06-03 2010-12-08 Ecofys Netherlands B V A method of mounting a multitude of devices for hanessing solar energy, a positioning body for use in said method, a clamp guiding body, and a prefab roof element.
WO2010140878A3 (fr) * 2009-06-03 2011-09-01 Ecofys Investments B.V. Procédé de montage d'une multitude de dispositifs d'exploitation de l'énergie solaire, corps de positionnement destiné à être utilisé dans ledit procédé, corps de guidage de fixation, et élément de toit préfabriqué

Also Published As

Publication number Publication date
AU4946496A (en) 1996-10-08
FI951320A (fi) 1996-09-22
FI103609B1 (fi) 1999-07-30
FI103609B (fi) 1999-07-30
FI951320A0 (fi) 1995-03-21

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