WO2005124245B1 - Reflecting solar concentrator for the generation of electrical energy - Google Patents

Reflecting solar concentrator for the generation of electrical energy

Info

Publication number
WO2005124245B1
WO2005124245B1 PCT/IB2005/001731 IB2005001731W WO2005124245B1 WO 2005124245 B1 WO2005124245 B1 WO 2005124245B1 IB 2005001731 W IB2005001731 W IB 2005001731W WO 2005124245 B1 WO2005124245 B1 WO 2005124245B1
Authority
WO
WIPO (PCT)
Prior art keywords
solar concentrator
reflecting elements
photovoltaic receiver
reflector
reflecting
Prior art date
Application number
PCT/IB2005/001731
Other languages
French (fr)
Other versions
WO2005124245A2 (en
WO2005124245A3 (en
Inventor
Marco Stefancich
Original Assignee
Valsecchi A
Marco Stefancich
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 Valsecchi A, Marco Stefancich filed Critical Valsecchi A
Priority to EP05780113A priority Critical patent/EP1766298A2/en
Publication of WO2005124245A2 publication Critical patent/WO2005124245A2/en
Publication of WO2005124245A3 publication Critical patent/WO2005124245A3/en
Publication of WO2005124245B1 publication Critical patent/WO2005124245B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
    • F24S30/455—Horizontal primary axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S2023/87—Reflectors layout
    • F24S2023/874—Reflectors formed by assemblies of adjacent similar reflective facets
    • 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

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)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The present invention relates to a reflecting solar concentrator for the generation of electrical energy, comprising a generally concave reflector (1), having a plurality of reflecting elements (2) that define a focal area (3) situated before said reflecting elements (2), a photovoltaic receiver (4) having a plurality of photovoltaic cells, which define an active area, which is situated substantially at said focal area (2) and is adapted to receive the sunlight directly from said reflector (1), said photovoltaic receiver (4) being stationary with respect to said reflector (1), said reflecting elements (2) being substantially at the same distance from said focal area(3), characterized in that said reflecting elements (2) have a flat shape.

Claims

AMENDED CLAIMS[received by the International Bureau on 21 December 2005 (21.12.2005); original claims 1-15 replaced by amended claims 1-14]
1. A reflecting solar concentrator for the generation of electrical energy, comprising a) a generally concave reflector (1), having a plurality of reflecting elements (2) that define a focal area (3) situated before said reflecting elements (2), said reflecting elements (2) having a flat shape, b) a photovoltaic receiver (4) having a plurality of photovoltaic cells, which define an active area, which is situated substantially at said focal area (2) and is adapted to receive the sunlight directly from said reflector (1), said photovoltaic receiver (4) being stationary with respect to said reflector (1), said reflecting elements (2) 'being substantially at the same distance from said focal area (3), characterized in that said generally concave reflector comprises a generally concave support (5) in that said flat reflecting elements are attached to said generally concave support (5), and in that said flat reflecting means (2) have substantially the same shape and size as the active area of said photovoltaic receiver (4).
2. A solar concentrator as claimed in claim 1 wherein said photovoltaic receiver (4) defines a substantially square active area and wherein said flat reflecting elements (2) have a square shape and substantially the same size as the active area of said photovoltaic receiver (4).
3. A solar concentrator as claimed in claim 1 or .2, wherein said flat reflecting elements (2) are attached to a support (5) which is made of a plurality of joined pieces.
4. A solar concentrator as claimed in any of claims 1 to 3, wherein means (6) are provided for air cooling the photovoltaic receiver (4).
5. A solar concentrator as claimed in any of claims 1 to 4, wherein means (6) are provided for liquid cooling of the photovoltaic receiver (4).
6. A solar concentrator as claimed in any preceding claim, further comprising carrier and sun tracking means (7).
7. A solar concentrator as claimed in claim 6, wherein said carrier means (7) comprise an altazimuth motor-driven mounting.
AMENDED SHEET (ARTICLE 19)
8. A solar concentrator as claimed in claim 6, wherein said carrier means (7) comprise an equatorial motor-driven mounting.
9. A solar concentrator as claimed in claim 6, wherein said carrier means (7) comprise a motor-driven mounting having a first axis of rotation (71) parallel to the horizontal plane, and a second axis of rotation (72) orthogonal to said first axis of rotation, which changes its direction as the first axis (71) rotates.
10. A solar concentrator as claimed in any of claims 6 to 9, wherein said carrier means allow to direct the reflecting surface of the dish downwards.
11. A solar concentrator as claimed in any preceding claim, wherein said reflector (1) has one or more holes or slits for discharging rain water.
12. A generally concave reflector, having a generally concave support (5) and a plurality of reflecting elements (2) attached thereto, that define a focal area (3) situated before said reflecting elements (2), said reflecting elements having a flat shape and having substantially the same shape and size.
13. A reflector as claimed in claim 13, wherein one or more holes or slits are provided for discharging rain wat
14. A method of converting the radiant energy of the sunlight into electrical energy, wherein the sunlight is directly reflected onto a photovoltaic receiver (4) located in a focal area (3), said sunlight being reflected in such a manner as to a have a substantially constant illumination density all over the active surface of the photovoltaic receiver, said reflected sunlight in said focal area (3) having substantially the same shape and size as the active area of said photovoltaic receiver (4) and the concentration of the sunlight over the photovoltaic receiver (4) being at least one hundred twenty one suns.
PCT/IB2005/001731 2004-06-21 2005-06-20 Reflecting solar concentrator for the generation of electrical energy WO2005124245A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05780113A EP1766298A2 (en) 2004-06-21 2005-06-20 Reflecting solar concentrator for the generation of electrical energy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2004A001234 2004-06-21
IT001234A ITMI20041234A1 (en) 2004-06-21 2004-06-21 SOLAR REFLECTION CONCENTRATOR FOR THE PRODUCTION OF ELECTRICITY SOLAR REFLECTOR AND METHOD FOR THE CONVERSION OF THE RADIANT ENERGY OF THE SUN IN ELECTRICITY

Publications (3)

Publication Number Publication Date
WO2005124245A2 WO2005124245A2 (en) 2005-12-29
WO2005124245A3 WO2005124245A3 (en) 2006-05-04
WO2005124245B1 true WO2005124245B1 (en) 2006-08-03

Family

ID=35207704

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/001731 WO2005124245A2 (en) 2004-06-21 2005-06-20 Reflecting solar concentrator for the generation of electrical energy

Country Status (3)

Country Link
EP (1) EP1766298A2 (en)
IT (1) ITMI20041234A1 (en)
WO (1) WO2005124245A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121174A1 (en) * 2008-03-31 2009-10-08 Menova Energy Inc. Solar collector
PT104084A (en) * 2008-06-02 2009-12-02 Ao Sol En Renovaveis S A SOLAR COLLECTORS QUASI-STATIONARY CONCENTRATORS WITH VACUUM TUBES OR HOOKS AND NON-STATIONARY OPTICS
FR2953997B1 (en) * 2009-12-11 2012-01-20 Centre Nat Rech Scient SYSTEM FOR ELECTRONIC MANAGEMENT OF PHOTOVOLTAIC CELLS WITH ADJUSTABLE THRESHOLDS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760920A (en) * 1952-06-06 1956-08-28 Robert B Olsen Solar energy coking apparatus
US3713727A (en) * 1971-04-22 1973-01-30 Erevanskoe Otdel V Ni P Konstr Solar unit
JPS50140934A (en) * 1974-03-27 1975-11-12
US4317031A (en) * 1978-08-02 1982-02-23 Max Findell Central focus solar energy system
GB2246752B (en) * 1990-08-11 1994-02-02 Robert Martin Garside Vehicle powered by solar or other electromagnetic radiation.
AUPR403801A0 (en) * 2001-03-28 2001-04-26 Solar Systems Pty Ltd System for generating electrical power from solar radiation

Also Published As

Publication number Publication date
WO2005124245A2 (en) 2005-12-29
WO2005124245A3 (en) 2006-05-04
EP1766298A2 (en) 2007-03-28
ITMI20041234A1 (en) 2004-09-21

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