EP0783657A1 - Fenster für solarempfänger mit volumetrischem absorber - Google Patents
Fenster für solarempfänger mit volumetrischem absorberInfo
- Publication number
- EP0783657A1 EP0783657A1 EP95940535A EP95940535A EP0783657A1 EP 0783657 A1 EP0783657 A1 EP 0783657A1 EP 95940535 A EP95940535 A EP 95940535A EP 95940535 A EP95940535 A EP 95940535A EP 0783657 A1 EP0783657 A1 EP 0783657A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- window
- solar radiation
- segments
- solar
- absorber
- 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- Withdrawn
Links
Classifications
-
- 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
-
- 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
Definitions
- the invention relates to a central solar radiation receiver that is associated with an optical concentration system.
- a central solar radiation receiver admits concentrated light at extremely high temperatures, commonly about 700°-1500°C, so that a solar absorber mounted therein, preferably a volumetric solar absorber, absorbs the incident concentrated light, converts it into heat and the so-generated heat is transferred to a heat carrier fluid, or is used to perform a thermochemical process.
- Volumetric solar receivers generally have a tubular housing accommodating a volumetric solar absorber shielded by transparent window so as to form a sealed absorber chamber capable of holding a working fluid or a chemical reaction mixture in direct contact with the absorber.
- the working fluid or reaction mixture is caused to flow across the absorber chamber whereby heat is withdrawn from the absorber and is either utilized for the chemical reaction or is transported outside the receiver.
- Typical solar receivers with volumetric absorber are disclosed, for example, in U.S. 5,245,986 and U.S. 5,323,764.
- the transparent window that shields the volumetric solar absorber in a solar receiver must be capable of sustaining the extreme conditions of high solar flux, high temperature and pressures associated with the conditions of operation.
- conical windows that are placed inside the receiver to shield the absorber and form the sealed absorber chamber so that the axis of propaga- tion of the solar light is along the axis of the conical window, perform extremely well under severe conditions of heat and pressure. Since the concentrated solar light is approaching the window at a wide angular distribution, it penetrates the window whenever it intersects therewith.
- the design of the window can be such that a small amount of light which is reflected in a single interaction between the light and the window will eventually penetrate the window after successive interactions.
- a solar radiation receiver assembly comprising a housing having an aperture and holding a volumetric solar absorber, a transparent window capable of withstanding high temperature mounted in said aperture for the admission of incident concentrated solar radiation, shielding the volumetric solar absorber so as to form a sealed absorber chamber capable of holding a fluid medium, and means for the ingress and egress of said fluid medium, characterized in that the window consists of a plurality of discrete transpar- ent window segments set in a common matrix capable of withstanding high temperature.
- a window for a solar radiation receiver assembly capable of withstanding high temperature and adapted for admission of incident concentrated solar radiation, characterized in that the window consists of a plurality of discrete transparent window segments set in a common matrix capable of withstanding high temperature.
- the matrix that holds the window segments may be a suitably shaped prefabricated body with apertures for receiving and holding the window fragments.
- the matrix may be made ad hoc from a ready-made frame in which the window segments are mounted with the aid of suitably shaped connecting members.
- the window segments may have different dimensions, e.g. for the purpose of maximizing the window segment holding capacity of a circular matrix and, as a result, the transparency of the window.
- the window segments may also have different shapes such as flat, cylindrical, globular and conical.
- the fluid medium inside the absorber chamber may be liquid or gaseous and may be a heat carrier or a chemical reaction mixture.
- FIG. 1 is a schematic illustration of a solar radiation receiving assembly according to the invention.
- Fig. 2 is a schematic front view of a window used in the solar radiation receiver assembly according to the present invention.
- Fig 1 shows a central solar receiver with a volumetric absorber of the kind described in U.S. 5,245,986.
- the solar receiver 1 comprises a solar receiver housing 2 having an aperture 3 holding a transparent window 4 for the admission of incident concentrated solar radiation of the kind shown in Fig. 2 herein.
- Housing 2 accommodates a solar absorber 5 having a frame 6 secured to the housing, and a plurality of absorber elements 7 held in frame 6.
- the housing comprises an intake pipe 8 serving for the ingress of a working fluid surrounding the absorber 5 and an opening 9 for the egress of heated-up working fluid.
- Fig. 2 is a schematic illustration of the window 4 made in accordance with the present invention.
- the window 4 comprises a matrix 10 made of a high temperature resistant material holding a plurality of large diameter widow segments 11 and small diameter window segments 12, all made of quartz glass. Due to the different sizes of window segments 11 and 12, the transparency of window 4 is maximized so that about 80% of the aperture 3 admits concentrated solar radiation.
- the window according to the invention may also be used with other configurations of central solar receivers with volumetric solar absorbers, for example, of the kind shown in Fig. 1 of U.S. 5,323,764 and described in description thereof, which Fig. 1 and description are incorpo- rated herein by reference.
- the solar receiver comprises an aperture and a frusto conical window with cylindrical rim portions and designed to withstand high pressure and temperature, shielding the solar absorber so as to form a sealed absorber chamber.
- the frusto conical window is replaced by a circular window of the kind of window 4 in Fig. 1 herein, to be mounted in aperture.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Light Receiving Elements (AREA)
- Photovoltaic Devices (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL11136894A IL111368A0 (en) | 1994-10-23 | 1994-10-23 | A window for a central solar receiver with volumetric absorber |
IL11136894 | 1994-10-23 | ||
PCT/US1995/013629 WO1996012918A1 (en) | 1994-10-23 | 1995-10-20 | A window for a central solar receiver with volumetric absorber |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0783657A1 true EP0783657A1 (de) | 1997-07-16 |
EP0783657A4 EP0783657A4 (de) | 1999-04-14 |
Family
ID=11066681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95940535A Withdrawn EP0783657A4 (de) | 1994-10-23 | 1995-10-20 | Fenster für solarempfänger mit volumetrischem absorber |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0783657A4 (de) |
AU (1) | AU4195096A (de) |
IL (2) | IL111368A0 (de) |
RU (1) | RU2158885C2 (de) |
WO (1) | WO1996012918A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10020322B4 (de) * | 2000-04-26 | 2005-12-15 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Strahlungsemfänger |
JP2002195661A (ja) * | 2000-12-26 | 2002-07-10 | Yeda Res & Dev Co Ltd | 中央ソーラーレシーバー |
FR2951252B1 (fr) | 2009-10-14 | 2011-11-25 | Centre Nat Rech Scient | Recepteur surfacique solaire modulaire texture fonctionnant a haute temperature |
WO2013021397A1 (en) * | 2011-08-08 | 2013-02-14 | Sunborne Energy Technologies Pvt Ltd | Absorber for concentrated solar power system |
KR101281090B1 (ko) * | 2011-09-08 | 2013-07-02 | 한국에너지기술연구원 | 태양열 발전장치의 체적형 흡수기 |
CN107588560A (zh) | 2012-03-21 | 2018-01-16 | 威尔逊太阳能公司 | 太阳能接收器、发电系统和流体流动控制装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050322A1 (de) * | 1980-10-16 | 1982-04-28 | Dala Invest AB | Verglasung einer Raumöffnung oder dgl. |
US4550979A (en) * | 1983-07-15 | 1985-11-05 | Carl-Zeiss-Stiftung | Testing apparatus including a vacuum-tight radiation window |
US5245986A (en) * | 1991-01-14 | 1993-09-21 | Yeda Research And Development Company Limited | Solar receiver |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3493291A (en) * | 1966-06-22 | 1970-02-03 | James E Webb | High temperature lens construction |
JPS56162353A (en) * | 1980-05-19 | 1981-12-14 | Tokyo Standard Service:Kk | Water heater utilizing solar heat |
US5010873A (en) * | 1990-08-29 | 1991-04-30 | Hoyle Jack W | Solar energy intensifier and collector system |
IL100743A (en) | 1992-01-23 | 1994-11-28 | Yeda Res & Dev | Central solar collector |
-
1994
- 1994-10-23 IL IL11136894A patent/IL111368A0/xx unknown
-
1995
- 1995-10-20 AU AU41950/96A patent/AU4195096A/en not_active Abandoned
- 1995-10-20 EP EP95940535A patent/EP0783657A4/de not_active Withdrawn
- 1995-10-20 IL IL115706A patent/IL115706A/en not_active IP Right Cessation
- 1995-10-20 WO PCT/US1995/013629 patent/WO1996012918A1/en not_active Application Discontinuation
- 1995-10-20 RU RU97107849/06A patent/RU2158885C2/ru active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050322A1 (de) * | 1980-10-16 | 1982-04-28 | Dala Invest AB | Verglasung einer Raumöffnung oder dgl. |
US4550979A (en) * | 1983-07-15 | 1985-11-05 | Carl-Zeiss-Stiftung | Testing apparatus including a vacuum-tight radiation window |
US5245986A (en) * | 1991-01-14 | 1993-09-21 | Yeda Research And Development Company Limited | Solar receiver |
Non-Patent Citations (1)
Title |
---|
See also references of WO9612918A1 * |
Also Published As
Publication number | Publication date |
---|---|
IL111368A0 (en) | 1994-12-29 |
RU2158885C2 (ru) | 2000-11-10 |
IL115706A0 (en) | 1996-01-19 |
WO1996012918A1 (en) | 1996-05-02 |
AU4195096A (en) | 1996-05-15 |
EP0783657A4 (de) | 1999-04-14 |
IL115706A (en) | 1998-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19970505 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GR IT PT |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19990303 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): DE ES FR GR IT PT |
|
17Q | First examination report despatched |
Effective date: 20001020 |
|
RTI1 | Title (correction) |
Free format text: CENTRAL SOLAR RECEIVER ASSEMBLY |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20030318 |