GB2071305A - Solar collectors - Google Patents
Solar collectors Download PDFInfo
- Publication number
- GB2071305A GB2071305A GB8032764A GB8032764A GB2071305A GB 2071305 A GB2071305 A GB 2071305A GB 8032764 A GB8032764 A GB 8032764A GB 8032764 A GB8032764 A GB 8032764A GB 2071305 A GB2071305 A GB 2071305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collectors
- solar
- absorbers
- incident
- solar radiation
- 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.)
- Granted
Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 31
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/6612—Evacuated glazing units
-
- 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
-
- 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
- F24S10/74—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits the tubular conduits are not fixed to heat absorbing plates and are not touching each other
- F24S10/746—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits the tubular conduits are not fixed to heat absorbing plates and are not touching each other the conduits being spirally coiled
-
- 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
- F24S2025/01—Special support components; Methods of use
- F24S2025/011—Arrangements for mounting elements inside solar collectors; Spacers inside solar collectors
-
- 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
- F24S2025/6012—Joining different materials
- F24S2025/6013—Joining glass with non-glass 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
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
- F24S2080/501—Special shape
- F24S2080/503—Special shape in the form of curved covering elements
-
- 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
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/249—Glazing, e.g. vacuum glazing
-
- 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
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Joining Of Glass To Other Materials (AREA)
- Photovoltaic Devices (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
A solar energy collection system including a plurality of solar collectors 10 mounted in an array. Each collector includes a solar energy absorber 22 supported within a chamber having front and back transparent covers 12, 13. The front surface of each absorber faces toward the sun to receive direct solar radiation during the day. Mirrors not shown positioned behind the array reflect solar radiation to the back side of the absorbers when solar radiation is not incident on or is incident at a small angle on to the front surface of the absorbers. <IMAGE>
Description
1
GB 2 071 305 A 1
SPECIFICATION
Improvements in or relating to solar energy collection systems
This invention relates to solar energy collection 5 systems.
The present invention consists in a solar energy collection system comprising a plurality of solar collectors each having a front and a back transparent cover, solar energy absorbers having 10 front and back surfaces disposed in respective collectors, means mounting said collectors in an array so that a front surface of each absorber faces toward the sun to receive direct solar radiation during the day, and reflective means positioned 15 behind said array to reflect solar radiation incident thereon to the back side of said absorbers at times when solar radiation is not incident on or is incident at a small angle with respect to the front surfaces of said absorbers.
20 One embodiment of the invention is formed of evacuated solar energy collectors each having a housing which has two transparent cover members. Each member is formed as a section of a sphere to withstand atmospheric pressure when 25 the collector is evacuated. This section permits the collector to have a large absorber area to collector area ratio in comparison to the more conventional tubular evacuated collectors. It also has a low profile to facilitate the architectural integration of 30 these collectors in close-packed arrays.
Preferably, the housing is formed of two members having surfaces that are sections of a sphere. The members are joined at their rims to form a chamber around an absorber. Means are 35 provided to counteract stresses at the rim of the evacuated housing. Since both members are transparent, the time of effective collection during daylight hours is extended.
The invention will now be described, by way of 40 example, with reference to the accompanying drawings, in which:—
FIG. 1 is a top view of a plurality of solar collectors forming a solar energy collection system according to the invention;
45 FIG. 2 is a view seen in the plane of line 2—2 of Fig. 1;
FIG. 3 is an enlarged view of a portion of Fig. 2;
FIG. 4 is a detail in section of the bottom center of the collector as shown in Fig. 2;
50 FIG. 5 is the top view of a collector shown in Fig. 1 showing one form of absorber therefor;
FIG. 6 is the top view of an alternative form of absorber to that shown in Fig. 5;
FIG. 7 is a yiew seen in the plane of lines 7—7 55 of Fig. 6;
FIG. 8 is a detail in section of a further collector for use in a system according to the invention;
FIG. 9 is a detail in section of another collector for use in a system according to the invention; 60 FIG. 10 is a detail in section of another collector for use in a system according to the invention;
FIG. 11 is a side elevation of an array of collectors embodying the invention;
FIG. 12 is a front elevation of the array of
Fig. 11;
FIG. 13 is a view seen in the plane of lines 13—13 of Fig. 11; and
FIG. 14 is a sectional view seen in the plane of lines 1A—14 of Fig. 12.
Fig. 1 shows a plurality of solar collectors 10 mounted on a support surface 11 in a hexagonal close-packed array. The hexagonal array provides the densest nesting for collectors having circular configurations. Mirrors (not shown) are situated in the interstices between three adjacent collectors to direct energy to transparent lower surfaces of the collectors. A square or other quadilateral array may also be used if dictated by architectural considerations.
As exemplified in Fig. 2, a collector 10 in the system of Fig. 1 comprises a transparent cover member 12 and a preferably transparent lower cover member 13. The cover members are formed as sections of a sphere with a low profile and having peripheral rims 14 and 15, respectively. Members 12 and 13 can be formed by sag molding sheets of glass in a well known technique. The rims 14 and 15 are fitted to a tension ring 16 in seats 17 and 18 provided thereon. Adhesive seals 19 and 20 provide an airtight bond between seats 17 and 18, respectively, and rims 14 and 15, and cushion the rims in the respective seats. A preferred sealing material for all glass to metal seals is a low vapor pressure epoxy marketed by Varian Associates under the trademark TORR-SEAL.
Disposed within chamber 21 defined by cover members 12 and 13 is an absorber 22. As shown in Fig. 5, absorber 22 is in the form of a closely-wound parallel double spiral. Inlet and outlet lines 23 and 24, respectively, are provided and expansion elbows 25 and 26 may be provided in the inlet and outlet lines respectively.
The inlet and outlet lines 23 and 24 extend through a closure member 27 which closes a bottom opening 28 in lower member 13.
Absorber 22 is supported within chamber 21 by means of a plurality of support members 29 which may be of a ceramic or other highly heat resistant material. As exemplified in Fig. 5, absorber 22 may include a plurality of radial stiffening members 30. The absorber has a selective coating on its top and also on its bottom if member 13 is transparent. The spiral is close wound to present maximum absorber area and adjacent turns may be in contact with each other. Where the convolutes of the spiral are not in contact, as shown in Fig. 5, the interior surface of back member 13 is coated to be reflective to reflect solar radiation to the underside of the absorber. The absorber tubing and lines 23 and 24 may be glass or metal.
Member 27 is a metallic member having passageways 30 and 31 for inlet and outlet lines 23 and 24 respectively. The inlet and outlet lines are braised to the plug to provide an airtight seal. Plug 27 is bonded to the edge defining opening 28 by means of an adhesive 32. A check valve 33 is fitted into a third passage 34 in plug 27 to
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GB 2 071 305 A 2
permit collector 10 to be evacuated.
Member 27 and opening 28 are preferably circular and centrally located on member 13 to prevent thermal and pressure stress 5 concentrations from developing due to high temperatures along lines 23 and 24.
Collector 10 is supported by a plurality of legs 35 having supporting feet 36. Legs 35 may be fastened to ring 16 by means of a bolt 37. 10 Generally, three legs 35 will be sufficient.
A heat exchange medium such as ethyl glycol may be circulated through absorber 22, entering through inlet line 23 and exiting to a storage medium or energy utilization device through outlet 15 24. Inlet and outlet lines 23 and 24 will be suitably insulated to prevent the collected heat from being lost to the ambient atmosphere. Inlet and outlet lines 23 and 24 may be connected to suitable manifolds or headers to serve all the 20 collectors 10 shown in Fig. 1.
When the collector is evacuated, compressive atmospheric forces will tend to force the surfaces 12 and 13 towards a planar shape. This will create radial compressional forces and tangential 25 tensional forces in the members. The tangential forces will increase in magnifde from the center toward the edges. The compressive forces are counteracted by tension ring 16 which also counteracts the tangential forces tending to 30 diametrically enlarge rims 14 and 15.
The tension ring is shown as being formed in one piece. However, it is to be understood that it may be formed of two butt welded bands which are joined together, the inner band being narrower 35 than the outer band to provide seats 17.
Figs. 6 and 7 exemplify an alternate absorber
40 which may be used in the collector shown in Figs. 1 through 5. Absorber 40 includes a panel
41 having a heat exchange grid in intimate heat 40 exchange relationship therewith. The grid comprises headers 42 and 43 and a plurality of conduits 44 extending therebetween. Inlet and outlet lines 45 and 46 are taken from headers 41 and 42 respectively.
45 Fig. 8 examplifies an alternate sealing member 47 for opening 28. A formed glass sealing member 47 is attached to lower member 13 by glass solder indicated at 48. Tubes 23 and 24 extend through member 47 and plugs 49 and 50 50 provide a vacuum seal therefor. A vacuum closure pull 51 is provided to be sealed after the collector 10 is evacuated. Plugs 49 and 50 can be any suitable glass-to-metal sealing material. An example of such a material is an alloy sold under 55 the trademark KOVAR by Carpenter Technology Corporation of Reading, Pennsylvania.
A second collector 52 for use in a system according to the invention, shown in Fig. 9, is formed of memoers 53 and 54 which are 60 generally sections of a sphere. Members 53 and 54 are provided with rims 5b and 66, respectively, which are short cylindrical sections. Memoers 53 and 54, including rims 55 and 56, may each be die cast in a manner similar to the way the screen 65 portions of cathode ray tubes and television picture tubes are made. Rims 55 and 56 are joined together at their ends by a glass solder 57. An annular tension ring 58 is attached to the outer surfaces of rings 55 and 56 through an adhesive seal 59. The seal also acts as a cushion between the metal and the glass.
As exemplified in Fig. 10, a further collector 60 for a system according to the invention has an upper member 61 and lower member 62. Both have surfaces defined on sections of a sphere. Member 61 includes a relatively thick rim 63 and member 62 includes a rim 64. Rim 64 is dimensioned to telescope into rim 63. A glass solder seal 65 provides an airtight seal between concentric rims 63 and 64. A ledge 66 may be provided projecting from rim 63 to provide a uniform stop to abut the end of rim 64. The increased thickness of rim 63 obviates the metallic tension ring.
A ring 67 having a lower flange or support ears 68 is provided around rim 63 to provide support for collector 60. Ring 67 merely acts as a support means for the collector. Ring 67 is attached to rim 63 through an epoxy seal 69.
Members 61 and 62, including rims 63 and 64 respectively, can each be die formed and then assembled in a manner similar to the way some television picture tubes are made.
The collector housings shown in Figs. 9 and 10 may be formed in an elliptical or rectangular configuration as seen from the top. In such case, the absorber shape would follow that of the housing and could take the form of Fig. 5 or 6 or any other suitable form.
The collectors described above may be mounted to the structure they serve or may be mounted to a free standing support as exemplified in Figs. 11—14, which show a collection system according to the invention. The system of Figs. 11—13 exemplifies a support structure 70 which comprises a plurality of parallel support members 71—75 of generally l-cross-section defining channels 76 to receive the edges of collectors 80. The members 71—75 are disposed at an angle to the vertical dependent on the latitude of installation.
The collectors 80 are shown as having a generally rectangular configuration, and are of the structure shown in Fig. 9. The structure of Fig. 10 may also be used for the rectangular collector.
The collectors 80 have a tension or support band 81, previously exemplified, which are received in channels 76 of the members 71—75. Bottom members 82—85 retain the columns of collectors. If desired, cross members such as 82—85 may be provided for each collector. A top cross member 86 is provided to rigidize support member 70. A mirror assembly 87 is disposed on the north side of collectors 80. Mirror assembly 87 comprises two mirror surfaces 88 ana 89 at an angle A dependent on the latitude of installation. A support exemplified by a strut 90 is provided for the mirror assembly.
in Fig. 13, the east is to tne riqnt. Mirror surface 89 will reflect the morning sun rays to the
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back side of the collectors and to the absorbers therein. As the sun continues to rise, mirror surface 89 will reflect less light and in the afternoon mirror surface 88 will reflect sunlight to 5 the rear of collectors 80. At midday the mirror surfaces will be shadowed by the collectors, except for the light that may pass therebetween.
This arrangement substantially extends the time of effective heat collection by the absorbers, 10 and provides a sun tracking effect to stationary collectors.
The collectors described above have a high ratio of absorber to collector area and volume. The configuration and construction of the housing will 1 5 withstand the atmosphere pressure when evacuated, and will eliminate losses due to convection currents. With the elimination of convection currents, the collector may operate at very high temperatures, resulting in reduction in 20 size of associates equipment in an overall solar heating system. Moreover, the disclosed collector structure provides greater collecting efficiency with respect to time in a day through the ability to accept reflected solar energy through the rear 25 cover member at low angles of azimuth of the sun.
While the cover members are preferably formed as sections of a sphere convex to the outside, any convex shape such as paraboloid capable of withstanding atmospheric pressure may be 30 utilized.
While preferred embodiments of the invention have been set forth for purposes of disclosure, modification to the disclosed embodiments of the invention as well as other embodiments thereof 35 may occur to those skilled in the art. Accordingly,
the appended claims are intended to cover all embodiments of the invention and modifications to the disclosed embodiments which do not depart from the scope of the invention.
Claims (5)
1. A solar energy collection system comprising a plurality of solar collectors each having a front and a back transparent cover, solar energy absorbers having front and back surfaces disposed
45 in respective collectors, means mounting said collectors in an array so that a front surface of each absorber faces toward the sun to receive direct solar radiation during the day, and reflective means positioned behind said array to reflect solar
50 radiation incident thereon to the back side of said absorbers at times when solar radiation is not incident on or is incident at a small angle with respect to the front surfaces of said absorbers.
2. A system as claimed in claim 1, wherein
55 each of said covers is formed of glass.
3. A system as claimed in claim 1 or 2, wherein each of said collectors is evacuated.
4. A system as claimed in any one of the preceding claims, wherein said reflecting means
60 comprises two surfaces, a first surface positioned to reflect early morning solar radiation and the second surface positioned to reflect late afternoon solar radiation.
5. A solar energy collection system
65 constructed, arranged and adapted to operate substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.
Printed for Her Majesty's Stationery Office by the Courier Press, Leamington Spa, 1981. Published by the Patent Office, 25 Southampton Buildings, London, WC2A 1AY, from which copies may be obtained.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83678177A | 1977-09-26 | 1977-09-26 | |
IT7851235A IT1206551B (en) | 1977-09-26 | 1978-09-25 | IMPROVEMENTS OF SOLAR VACUUM COLLECTORS |
AU64936/80A AU6493680A (en) | 1977-09-26 | 1980-11-28 | Solar collector |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2071305A true GB2071305A (en) | 1981-09-16 |
GB2071305B GB2071305B (en) | 1982-11-24 |
Family
ID=32511804
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7838161A Expired GB2005402B (en) | 1977-09-26 | 1978-09-26 | Solar energy collectors |
GB8032764A Expired GB2071305B (en) | 1977-09-26 | 1978-09-26 | Solar collectors |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7838161A Expired GB2005402B (en) | 1977-09-26 | 1978-09-26 | Solar energy collectors |
Country Status (8)
Country | Link |
---|---|
JP (2) | JPS5461339A (en) |
AU (2) | AU518738B2 (en) |
CA (1) | CA1112528A (en) |
DE (1) | DE2838883A1 (en) |
ES (1) | ES473385A1 (en) |
FR (2) | FR2404184A1 (en) |
GB (2) | GB2005402B (en) |
IT (1) | IT1206551B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991000482A1 (en) * | 1989-06-23 | 1991-01-10 | Hei-Tech B.V. | Vacuum solar collector |
DE4332237A1 (en) * | 1993-09-22 | 1995-03-23 | Hellmuth Costard | Concave mirror |
WO2010043743A2 (en) * | 2008-10-14 | 2010-04-22 | Iberdrola Ingeniería Y Construcción, S. A. U. | Improved solar receiver for parabolic-trough collectors |
WO2011031381A3 (en) * | 2009-08-28 | 2011-12-22 | Green Partners Technology Holding Gmbh | Solar collectors and methods |
CN102705999A (en) * | 2012-07-12 | 2012-10-03 | 范浩源 | Convex lens energy-collecting water heater |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2443649A1 (en) * | 1978-12-08 | 1980-07-04 | Bertin & Cie | SOLAR CAPTOR |
IT1124047B (en) * | 1979-04-24 | 1986-05-07 | Camerano Angelo | SOLAR CAPTOR PANEL |
SE422116B (en) * | 1980-07-17 | 1982-02-15 | Sten Zeilon | REFLECTOR DEVICE, Separate for use in solar panels |
GB2116691A (en) * | 1982-03-17 | 1983-09-28 | Sesame Engineering Company | Solar heater |
NL9201863A (en) * | 1992-10-27 | 1994-05-16 | Level Energietech Bv | Solar radiation collecting device and method for manufacturing such a device. |
US5373839A (en) * | 1994-01-05 | 1994-12-20 | Hoang; Shao-Kuang | Solar collector assembly for a solar heating system |
DE19623728A1 (en) * | 1996-06-14 | 1997-12-18 | Andreas Gassel | Self-evacuating solar collector |
JP2007107867A (en) * | 2005-10-10 | 2007-04-26 | Kokusai Gijutsu Kaihatsu Co Ltd | Vacuum tabular type solar heat collecting device |
JP2008170138A (en) * | 2007-01-15 | 2008-07-24 | Kokusai Gijutsu Kaihatsu Co Ltd | Vacuum solar heat collecting device and system |
CN102701575B (en) * | 2012-03-21 | 2015-07-01 | 戴长虹 | Convex vacuum glass, flat plate vacuum glass and preparation method thereof |
CN102951795A (en) * | 2012-03-21 | 2013-03-06 | 戴长虹 | Vacuum glass without extraction opening and support and preparation method thereof |
CN102951786B (en) * | 2012-03-21 | 2016-05-18 | 戴长虹 | Convex surface low latitude glass of glass welding and preparation method thereof |
EA201491744A1 (en) | 2012-03-21 | 2015-07-30 | Чанхун Дай | GLASS PACKAGE WITH LOW PRESSURE OR VACUUM, HERMETIZED BY BAR FRAME EDGE AND GRAY |
CN102951800B (en) * | 2012-03-21 | 2016-05-18 | 戴长虹 | Convex surface tempering low latitude glass and the manufacture method thereof of metal solder |
CN102951791B (en) * | 2012-03-21 | 2016-01-20 | 戴长虹 | Convex low-vacuum glass, dull and stereotyped low latitude glass and preparation method thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3179105A (en) * | 1963-09-19 | 1965-04-20 | Falbel Gerald | Off-axis focused solar heater |
JPS556820B2 (en) * | 1973-12-21 | 1980-02-20 | ||
IL47166A (en) * | 1975-04-24 | 1978-10-31 | Harry Zvi Tabor | Solar collectors |
US4038965A (en) * | 1975-07-23 | 1977-08-02 | Halm Instrument Co., Inc. | Evacuated solar heat collector |
JPS5216468U (en) * | 1975-07-25 | 1977-02-05 | ||
DE2623862A1 (en) * | 1976-05-28 | 1977-12-15 | Hans Rueckstaedter | Solar collector vacuum tubes - has two similar corrugated halves of glass welded together as unit |
DE2804746C2 (en) * | 1978-02-04 | 1984-12-13 | Steinrücke, Walter, 5000 Köln | Solar collector |
-
1978
- 1978-09-06 DE DE19782838883 patent/DE2838883A1/en not_active Ceased
- 1978-09-15 ES ES473385A patent/ES473385A1/en not_active Expired
- 1978-09-22 AU AU40104/78A patent/AU518738B2/en not_active Expired
- 1978-09-25 IT IT7851235A patent/IT1206551B/en active
- 1978-09-25 CA CA311,982A patent/CA1112528A/en not_active Expired
- 1978-09-25 JP JP11677378A patent/JPS5461339A/en active Granted
- 1978-09-26 GB GB7838161A patent/GB2005402B/en not_active Expired
- 1978-09-26 GB GB8032764A patent/GB2071305B/en not_active Expired
- 1978-09-26 FR FR7827538A patent/FR2404184A1/en not_active Withdrawn
-
1980
- 1980-09-26 FR FR8020722A patent/FR2457450A1/en not_active Withdrawn
- 1980-11-28 AU AU64936/80A patent/AU6493680A/en not_active Abandoned
-
1981
- 1981-07-29 JP JP56117887A patent/JPS5798758A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991000482A1 (en) * | 1989-06-23 | 1991-01-10 | Hei-Tech B.V. | Vacuum solar collector |
DE4332237A1 (en) * | 1993-09-22 | 1995-03-23 | Hellmuth Costard | Concave mirror |
WO2010043743A2 (en) * | 2008-10-14 | 2010-04-22 | Iberdrola Ingeniería Y Construcción, S. A. U. | Improved solar receiver for parabolic-trough collectors |
WO2010043743A3 (en) * | 2008-10-14 | 2010-09-02 | Iberdrola Ingeniería Y Construcción, S. A. U. | Improved solar receiver for parabolic-trough collectors |
WO2011031381A3 (en) * | 2009-08-28 | 2011-12-22 | Green Partners Technology Holding Gmbh | Solar collectors and methods |
CN102705999A (en) * | 2012-07-12 | 2012-10-03 | 范浩源 | Convex lens energy-collecting water heater |
Also Published As
Publication number | Publication date |
---|---|
AU4010478A (en) | 1980-03-27 |
AU6493680A (en) | 1981-04-09 |
FR2404184A1 (en) | 1979-04-20 |
GB2071305B (en) | 1982-11-24 |
GB2005402B (en) | 1982-07-14 |
FR2457450A1 (en) | 1980-12-19 |
CA1112528A (en) | 1981-11-17 |
JPS5723870B2 (en) | 1982-05-20 |
ES473385A1 (en) | 1980-01-16 |
IT1206551B (en) | 1989-04-27 |
JPS5798758A (en) | 1982-06-19 |
AU518738B2 (en) | 1981-10-15 |
IT7851235A0 (en) | 1978-09-25 |
GB2005402A (en) | 1979-04-19 |
JPS5461339A (en) | 1979-05-17 |
DE2838883A1 (en) | 1979-04-05 |
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PCNP | Patent ceased through non-payment of renewal fee |