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WO2012176007A1 - Capteur solaire - Google Patents

Capteur solaire Download PDF

Info

Publication number
WO2012176007A1
WO2012176007A1 PCT/HU2012/000052 HU2012000052W WO2012176007A1 WO 2012176007 A1 WO2012176007 A1 WO 2012176007A1 HU 2012000052 W HU2012000052 W HU 2012000052W WO 2012176007 A1 WO2012176007 A1 WO 2012176007A1
Authority
WO
WIPO (PCT)
Prior art keywords
collector
housing
cup
heat
sheath
Prior art date
Application number
PCT/HU2012/000052
Other languages
English (en)
Inventor
Jerzy BASZUN
István SOHAJDA
Original Assignee
Baszun Jerzy
Sohajda Istvan
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 Baszun Jerzy, Sohajda Istvan filed Critical Baszun Jerzy
Publication of WO2012176007A1 publication Critical patent/WO2012176007A1/fr

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
    • F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • 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
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • 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
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/80—Accommodating differential expansion of solar collector elements
    • 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
    • F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • 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
    • F24S80/60—Thermal insulation
    • 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
    • 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

Definitions

  • the invention relates to a low-heat loss solar collector that transforms the energy of solar radiation into heat energy at high temperature.
  • heat energy may be further transferred and used utilizing a circulating fluid.
  • the solar collector according to our invention is implemented by modifying an evacuated solar tube (solar vacuum tube) known per se.
  • Evacuated solar tubes are double-wall glass tubes open at one end, with the space between the glass walls being evacuated.
  • the open end of the double-wall glass tube (evacuated tube) of the collector is fitted with a heat insulated cap assembly comprising a cup that provides sealing even at high pressure.
  • the cup has two pipe stubs adapted to attach to the collector insulated tubes adapted to carry the fluid entering and leaving the collector.
  • solar energy incident on the collector is optically concentrated by placing the above described collector at the focal line of a mirror surface, for instance a parabolic mirror.
  • Solar collectors exploiting solar energy by transforming it to heat are commonly applied in the state of the art.
  • the most widespread solar collector type is the so called flat-plate collector that provides satisfactory efficiency only in case outdoor temperature is above the limit of t >20 °C. If outdoor air temperature is significantly lower than the temperature of the liquid to be heated, the heat loss of the flat-plate collector is very high. Therefore, such solutions may first and foremost be applied to advantage in Mediterranean regions having a high number of hours of sunlight. In continental countries they are usually applied for producing domestic hot water and to provide auxiliary heating.
  • Heat losses may be significantly reduced by applying another type of collector, the so-called evacuated tube collector.
  • evacuated tube collector Such known collector types, all available commercially, either apply "heat-pipe” heat transfer or heat water directly in double- wall glass tubes where the greenhouse effect operates, with the absorber being surrounded by vacuum providing extremely good heat insulation. According to measurements carried out by an evacuated tube manufacturer the optical loss is ca. 10%, and the stagnation temperature is 270 °C.
  • a solar collector having "heat-pipes" arranged in a double wall glass tube, with an absorption surface being disposed on the inside glass wall is disclosed in patent specification WO2009ES00582
  • the power output of the solar collector may be increased by applying multiple co-operating collectors.
  • the patent specification with publication number WO2008/06167A1 discloses a solution where the pear-shaped ends of the heat pipes of parallelly arranged collectors extend into a common "concentrator" that is hydraulically connected to a tank.
  • Energy utilization may be significantly increased applying known solutions that involve optical concentration of solar energy by lenses or mirrors, and direct the concentrated light energy to an absorber surface located in the focal plane or line.
  • a double-wall evacuated glass tube is applied as a collector according to the solution put forth in the patent specification with registration number US 4,016,860, where heat transfer is provided by a gas circulating in the collectors that are sealedly connected at their open ends to a heat insulated "concentrator" manifold. (The closed end of each collector is supported by a support bracket.) In the completed, closed system, air heated in the collector assembly is circulated in a known manner through a heat exchanger.
  • a necessary operating condition for the system is that the open end of the "outlet" pipe should be positioned in the tank higher than the level of the fluid (see also the non-horizontal orientation of the collector).
  • the solution may only be operated in case a slight overpressure is present, and is not capable of larger-scale heat transfer.
  • a fully fledged solar collector system may be known from patent specification with registration number US 4,262,658.
  • this solution collectors having double-wall glass evacuated tubes are arranged parallel with one another on a sloped roof surface, with their closed ends pointing upwards.
  • the "inlet” and “outlet” pipe stubs of cups sealedly attached to each collector at its open end are connected to a respective common header pipe.
  • the cups, as well as the two header pipes, are encompassed by a heat insulated common cover; the closed ends of the collectors being fixedly mounted.
  • the indispensably necessary features of the solution are the following: an open-ended tube (air vent tube) that extends deeply into the absorber tube of the collector and connects the outlet pipe to the space of the gas forming in the upper end of the absorber tube; and a restricting orifice disposed in the inlet pipe stub that is adapted to control the flow.
  • air vent tube air vent tube
  • the restricting orifices built into the individual collectors significantly increase flow resistance, thereby providing identical flow conditions for the collector tubes. Under normal operating conditions the power output of parallelly connected units adds up.
  • a disadvantage of the solution is that it has limited heat transfer ability (because of the relatively slow flow of the fluid caused by the restricting element).
  • An advantageous feature of this solution is that in case there is a danger of freeze the collector may be drained of fluid (water).
  • the absorber tube and the supply pipe are mounted by non-releasable joint (adhesive joint) in the adapter body, while the adapter itself is connected by sealing rings in a liquid proof manner to the collecting and distribution channels of the common housing such that it is rotatable in a specific angular range.
  • the collector tubes may be rotated in the direction of sunlight, exact adjustment being aided by a degree scale.
  • the aim set before the present invention has been to provide a solar collector that is capable of transforming solar energy into heat energy at any desired temperature even in case of low outdoor air temperature (-40 °C, Nordic regions, heating season) with low heat loss and consequently high efficiency, and thereby is capable of producing not only domestic hot water but of providing independent heating for houses and buildings during cold periods of the year.
  • the solution should be pressure proof such that it can reliably withstand increased internal pressure in case of an increased energy flow, and thus it can be operated reliably and efficiently under widely variable outdoor temperature conditions.
  • a still further objective has been to implement the solution utilizing commercially available and materials so that it may be an investment that is affordable for everyone and has short return time, and that it may be maintained economically through its service life of several years.
  • the heat transfer fluid directly receives the high heat energy flux from the entire cylindrical surface of the inner absorber tube of the collector tube
  • a flow reducer gas space is not present in the collector (i.e. the collector is fully filled up with fluid)
  • optical concentration is applied, primarily for reducing the specific heat loss of energy conversion
  • the evacuated tube is supported at its external surface
  • Such a solar collector may be created utilising cheap, commercially available evacuated tubes that is much more efficient than existing ones, and is unique in that it may also be operated in winter.
  • the object of the present invention is a solar collector having its collector disposed along the focal line of a mirror surface, expediently a parabolic mirror.
  • the housing of the collector is implemented as a double wall evacuated tube, expediently a commercially available product, that has one closed end.
  • the housing is completely filled up with fluid.
  • a cup is attached from outside to the open end of the housing via resilient sealing rings.
  • the rings provide liquid proof sealing (that is also pressure-proof up to a specific pressure limit) between the housing of the collector and the cup.
  • the cup has an inlet and an outlet orifice, and is encompassed by a sheath filled with insulation material, the cup and the sheath .together forming a single cap assembly.
  • the collector is positioned at the area near the open end of the housing by a support ring such that the collector may undergo axial displacement.
  • the collector is fixed at the focal line by the external sheath of the cap assembly.
  • the cup is attached to the open end of the housing by two parallelly arranged resilient sealing rings.
  • the inlet stub of the cup comprises a pipe section that has the same open cross section as the inlet stub and is arranged to extend deeply into the housing of the collector.
  • the inlet and outlet pipe stubs are connected by a closed steel piece extending into the interior of the housing of the collector.
  • the sheath of the cap assembly is made from metal, and the space between the cup and the sheath is filled by polyurethane foam or ceramic fibre applied as heat-insulation material.
  • expansion gaps are expediently disposed along the meeting line of the sheath and the cup, as well as along that of the sheath and the housing of the collector.
  • each collector being located along the focal line of a respective mirror surface, where the inlet and outlet pipe stubs of the collectors are connected to a respective common header pipe.
  • Fig. 1 is a line drawing showing the sectional side view of a preferred embodiment
  • Fig. 2 shows the solar collector arranged along the focal line of a parabolic mirror surface
  • Fig. 3 shows the sectional side view of a further preferred embodiment of the collector
  • Table 1 shows the characteristics of a conventional flat-plate collector, with Table 2 showing the characteristics of a conventional evacuated tube collector, and Table 3 presenting the characteristics of a collector K according to the present invention.
  • Fig. 1 shows the evacuated tube solar collector K according to the invention that has a housing 1 having double walls 1 a, 1 b made from pressure and heat resistant glass, with the space between the walls 1 a, 1 b being evacuated.
  • a metal cup 4 is sealedly attached on the open end of the housing 1.
  • sealing - and at the same time, releasable attachment - of the cup 4 are provided by two sealing rings 3a, 3b that ensure pressure sealing up to a predetermined value of internal pressure in the housing 1 , and above that value allow non-destructive axial displacement of the housing 1.
  • An outlet pipe stub 5 and an inlet pipe stub 6 are disposed on the cup 4, the inlet pipe stub 6 having a flow guide pipe section 6b that has an open end.
  • the pipe section 6b deeply extends into the interior of the housing 1.
  • the cup 4 is fully encompassed by a sheath 7 made preferably also from (non- corrosive) metal, the space between the sheath 7 and the cup 4 being filled with heat-insulation material 8.
  • Expansion gaps 9 are disposed along the meeting lines of the sheath 7 and the housing, and of the sheath 7 and the cup 4. If necessary, the expansion gaps 9 allow the insertion of the foaming heat-insulation material 8 to fill the space between the sheath 7 and the cup 4.
  • the sheath 7, filled with heat- insulation material 8 forms a single compact unit with the cup 4.
  • the special cap assembly 2 adapted to feed and discharge without heat build-up the absorber liquid (heat transfer liquid) circulated in the collector K, is formed by the cup 4 fitted with heat-insulation material 8 and a sheath 7. Since the housing 1 is configured such that heat loss is reduced to a minimum by the evacuated solar tube itself (according to the catalogue datasheet it transforms 90-92% of light energy to heat), the overall heat loss of the entire arrangement is also very low.
  • the heat transfer liquid applied in our invention is preferably a 50:50 mixture of antifreeze and water. (This material may be utilized to -40 °C at which temperature it congeals mildly.)
  • the evacuated tube collector arranged according to our invention (for instance according to the embodiment of Fig. 1 ) is disposed along the focal line of a parabolic mirror 10 supported by spacers 11 a, 11 b.
  • the closed end of the housing 1 of the collector K is supported in a support ring 12 such that it is allowed to move in an axial direction, while the sheath 7 of the cap assembly 2 located at the open end of the housing 1 is releasably attached to the spacer 11 b.
  • Fig. 3 shows a further embodiment of the collector.
  • the inlet and outlet pipe stubs 6, 5 of the cap assembly 2 are connected by a steel piece 13 implemented in the preferred embodiment as a closed-end steel pipe.
  • the space between the steel piece 13 and the inner wall 1 b of the housing 1 is filled with heat conductive mineral oil 14 (such as paraffin oil).
  • heat conductive mineral oil 14 such as paraffin oil
  • Table 1 shows the operational characteristics of a flat-plate solar collector as a function of irradiation conditions and outdoor temperature. The most important implication of the collector characteristics shown in Table 1 is that the heat loss of the flat-plate collector rapidly increases as the difference between the temperature of the medium to be heated and outdoor temperature rises, which means that in summer the collector may be applied for producing domestic hot water (dT is not greater than 50 °C) but only in case there of ideal (100%) sunlight conditions that occur very rarely.
  • dT domestic hot water
  • Table 2 shows the operational characteristics of a conventional evacuated solar tube collector as a function of irradiation conditions and outdoor temperature. The most important implication of the characteristics of Table 2 is that, compared to the previous characteristics the heat loss of the collector rises slower as dT increases, but with temperature differences greater than 100°C the heat loss of the collector extends its heat gain.
  • Table 3 shows the operational characteristics of the solar collector according to the present invention that applies optical concentration. The most important considerations are the following:
  • optical losses are limited to the optical loss of the mirror (about 0%), while heat loss is only caused by the heat loss of the single evacuated solar tube located at the focal line (in a known solution with similar power rating useful energy output is reduced by the combined heat loss of 25 evacuated tubes).
  • the cylindrical glass tube (cf. the housing 1) can best resist mechanical loads directed inwards from the outside, in order to proof the evacuated tube against loads caused by displacements due to heat expansion, the sealing rings 3a, 3b are arranged to contact the tube on the outside.
  • Commercially available evacuated tubes (these may be applied as the housing 1) have pressure ratings of 1 M Pa, and thereby the pressure values necessary for safe fluid circulation (0.15-0.2 MPa, 1.5-2.0 bar) may be achieved with a considerable safety margin.
  • appropriate heat transfer is ensured by mineral oil 14 located between the housing 1 and the steel piece 13, while the steel piece may be utilized at much higher operational pressure values.

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  • 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)
  • Optical Elements Other Than Lenses (AREA)

Abstract

La présente invention concerne un capteur solaire comprenant un capteur (K) disposé le long de la ligne focale (f) d'une surface d'un miroir, dans ce cas, un miroir parabolique (10), le capteur présentant un logement (1) ouvert à l'une de ses extrémités et des doubles parois (1 a, 1 b) réalisées en verre résistant à la pression et à la chaleur, l'espace situé entre les parois (1 a, 1 b) étant sous vide et l'extrémité ouverte du logement (1) étant protégée de l'extérieur de manière étanche aux liquides par une coupelle (4) comprenant un manchon de tuyau d'amenée (6) et un manchon de tuyau de sortie (5), la coupelle (4) étant protégée par une gaine (7) remplie d'un isolant thermique (8) formant, ainsi, un ensemble coiffe (2). L'invention se caractérise essentiellement en ce que le logement (1) est totalement rempli de liquide, la coupelle (4) est reliée de manière à résister à la pression à la paroi extérieure (1a) du logement (1) par des anneaux d'étanchéité souples (3a, 3b) à l'extrémité ouverte de celui-ci, et en ce que le capteur (K) est fixé par une bague de maintien (12) à l'extrémité fermée du logement (1), de sorte que le capteur (K) peut se déplacer axialement, alors que la gaine extérieure (7) de l'ensemble coiffe (2) est fixée de manière à être dans l'alignement de la ligne focale (f).
PCT/HU2012/000052 2011-06-24 2012-06-20 Capteur solaire WO2012176007A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU20111100153U HU4003U (en) 2011-06-24 2011-06-24 Solar collector
HUU1100153 2011-06-24

Publications (1)

Publication Number Publication Date
WO2012176007A1 true WO2012176007A1 (fr) 2012-12-27

Family

ID=45375806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2012/000052 WO2012176007A1 (fr) 2011-06-24 2012-06-20 Capteur solaire

Country Status (2)

Country Link
HU (1) HU4003U (fr)
WO (1) WO2012176007A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411325A (zh) * 2013-08-28 2013-11-27 山东阳光博士太阳能工程有限公司 中高温玻璃金属真空管太阳能集热器
JP2015081694A (ja) * 2013-10-21 2015-04-27 高砂熱学工業株式会社 受熱装置および太陽熱利用システム
WO2017217897A1 (fr) * 2016-06-17 2017-12-21 حمود مطلق فهيد الشمري، Tube sous vide transparent comprenant des miroirs et un tube de transfert de liquide

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016860A (en) 1976-01-12 1977-04-12 Owens-Illinois, Inc. Tubular solar energy collection system utilizing air media
US4018215A (en) * 1975-07-28 1977-04-19 Owens-Illinois, Inc. Liquid operated solar energy collector
DE2606329A1 (de) * 1976-02-18 1977-10-27 Klaus Rennebeck Strahlungsthermalkonverter
US4069810A (en) 1975-04-24 1978-01-24 Harry Zvi Tabor Vacuum solar collectors
US4091796A (en) 1976-08-16 1978-05-30 Owens-Illinois, Inc. Solar energy collection apparatus
US4262658A (en) 1978-06-26 1981-04-21 Owens-Illinois, Inc. Drainable solar collector apparatus
JPS5747161A (en) * 1980-09-04 1982-03-17 Nitto Kohki Co Ltd Hot water generating and taking out device utilizing solar heat
JPS5770361A (en) * 1980-10-21 1982-04-30 Fuji Electric Co Ltd Collector for solar heat
US4364373A (en) * 1980-10-24 1982-12-21 Nitto Kohki Co. Solar collector system
US4416261A (en) * 1980-12-11 1983-11-22 U.S. Philips Corporation Solar collector comprising an absorber plate which exchanges heat with the evaporator section of a heat pipe
US4474173A (en) * 1983-02-17 1984-10-02 Energy Design Corporation Solar energy collector
DE3934535A1 (de) * 1989-10-17 1991-04-18 Johannes Dipl Ing Friedlin Vorrichtung zur nutzung der sonnenstrahlung fuer die energiegewinnung
DE4129568A1 (de) * 1991-09-06 1993-03-11 Thomas Drolshagen Koaxialabsorber
DE29801531U1 (de) * 1998-01-31 1998-07-02 Schletter, Alexander, Dipl.-Ing., 35037 Marburg Glasvakuumröhrenkollektor
DE10002929A1 (de) * 2000-01-25 2001-07-26 Friedrich Roth Solarkollektorröhre
US20030010335A1 (en) 2001-07-05 2003-01-16 Schutz Gmbh & Co. Kgaa Solar collector
WO2008006167A1 (fr) 2006-07-12 2008-01-17 Sheringham Investments Pty Ltd Système de distribution de liquide tempere
CA2612029A1 (fr) 2006-11-22 2008-05-22 Theodore E. Larsen Capteur solaire reglable et methode d'utilisation
US20090107487A1 (en) 2007-10-31 2009-04-30 Randy Gee Apparatus and method for solar thermal energy collection
CN201318814Y (zh) * 2008-11-27 2009-09-30 浙江大学 一种同轴套管式u型集热管

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069810A (en) 1975-04-24 1978-01-24 Harry Zvi Tabor Vacuum solar collectors
US4018215A (en) * 1975-07-28 1977-04-19 Owens-Illinois, Inc. Liquid operated solar energy collector
US4016860A (en) 1976-01-12 1977-04-12 Owens-Illinois, Inc. Tubular solar energy collection system utilizing air media
DE2606329A1 (de) * 1976-02-18 1977-10-27 Klaus Rennebeck Strahlungsthermalkonverter
US4091796A (en) 1976-08-16 1978-05-30 Owens-Illinois, Inc. Solar energy collection apparatus
US4262658A (en) 1978-06-26 1981-04-21 Owens-Illinois, Inc. Drainable solar collector apparatus
JPS5747161A (en) * 1980-09-04 1982-03-17 Nitto Kohki Co Ltd Hot water generating and taking out device utilizing solar heat
JPS5770361A (en) * 1980-10-21 1982-04-30 Fuji Electric Co Ltd Collector for solar heat
US4364373A (en) * 1980-10-24 1982-12-21 Nitto Kohki Co. Solar collector system
US4416261A (en) * 1980-12-11 1983-11-22 U.S. Philips Corporation Solar collector comprising an absorber plate which exchanges heat with the evaporator section of a heat pipe
US4474173A (en) * 1983-02-17 1984-10-02 Energy Design Corporation Solar energy collector
DE3934535A1 (de) * 1989-10-17 1991-04-18 Johannes Dipl Ing Friedlin Vorrichtung zur nutzung der sonnenstrahlung fuer die energiegewinnung
DE4129568A1 (de) * 1991-09-06 1993-03-11 Thomas Drolshagen Koaxialabsorber
DE29801531U1 (de) * 1998-01-31 1998-07-02 Schletter, Alexander, Dipl.-Ing., 35037 Marburg Glasvakuumröhrenkollektor
DE10002929A1 (de) * 2000-01-25 2001-07-26 Friedrich Roth Solarkollektorröhre
US20030010335A1 (en) 2001-07-05 2003-01-16 Schutz Gmbh & Co. Kgaa Solar collector
WO2008006167A1 (fr) 2006-07-12 2008-01-17 Sheringham Investments Pty Ltd Système de distribution de liquide tempere
CA2612029A1 (fr) 2006-11-22 2008-05-22 Theodore E. Larsen Capteur solaire reglable et methode d'utilisation
US20090107487A1 (en) 2007-10-31 2009-04-30 Randy Gee Apparatus and method for solar thermal energy collection
CN201318814Y (zh) * 2008-11-27 2009-09-30 浙江大学 一种同轴套管式u型集热管

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* Cited by examiner, † Cited by third party
Title
WINDOW B ET AL: "Progress in the materials science of all-glass evacuated collectors", SOLAR ENERGY, PERGAMON PRESS. OXFORD, GB, vol. 32, no. 5, 1 January 1984 (1984-01-01), pages 609 - 623, XP025415819, ISSN: 0038-092X, [retrieved on 19840101], DOI: 10.1016/0038-092X(84)90137-3 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103411325A (zh) * 2013-08-28 2013-11-27 山东阳光博士太阳能工程有限公司 中高温玻璃金属真空管太阳能集热器
JP2015081694A (ja) * 2013-10-21 2015-04-27 高砂熱学工業株式会社 受熱装置および太陽熱利用システム
WO2017217897A1 (fr) * 2016-06-17 2017-12-21 حمود مطلق فهيد الشمري، Tube sous vide transparent comprenant des miroirs et un tube de transfert de liquide

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