WO2006131946A1 - Heat exchanger for solar energy generators - Google Patents
Heat exchanger for solar energy generators Download PDFInfo
- Publication number
- WO2006131946A1 WO2006131946A1 PCT/IT2006/000382 IT2006000382W WO2006131946A1 WO 2006131946 A1 WO2006131946 A1 WO 2006131946A1 IT 2006000382 W IT2006000382 W IT 2006000382W WO 2006131946 A1 WO2006131946 A1 WO 2006131946A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fins
- edges
- heat exchanger
- previous
- exchanger according
- Prior art date
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
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S10/755—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations the conduits being otherwise bent, e.g. zig-zag
-
- 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
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S2010/751—Special fins
-
- 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
- F24S10/75—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits with enlarged surfaces, e.g. with protrusions or corrugations
- F24S2010/751—Special fins
- F24S2010/752—Special fins extending obliquely
-
- 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 present invention relates to a heat exchanger for solar energy generators, and in particular to a heat exchanger which can be employed in the collectors receiving the solar rays from the reflectors of these generators.
- the known heat exchangers for solar energy generators generally comprise one or more ducts which are arranged with the longitudinal axis substantially perpendicular with respect to the solar rays and which are crossed by a fluid to be heated with the energy transmitted by these rays.
- the efficiency of the heat exchange between the outer surface of the ducts and the fluid flowing therein depends on many factors, among which the shape, the material and the size of the same ducts.
- the heat exchanger according to the present invention has a high efficiency in absorbing the solar energy.
- the arrangement and the "funnel" shape of said fins allows to absorb in an optimal manner not only the energy directly transmitted by the solar rays hitting the fins, but also the energy, even if very low, reflected by these fins.
- figure 1 shows a partial perspective view of the heat exchanger
- figure 2 shows a partial and enlarged side view of the heat exchanger of figure 1;
- figure 3 shows a partial perspective view of the heat exchanger of figure 1 in its case.
- the heat exchanger comprises in a known way one or more ducts 1 suitable for being exposed to a source of solar rays 2, for example the reflector of a solar energy generator, and for containing a fluid to be heated with the energy transmitted by these rays.
- Ducts 1 are preferably arranged parallel on a plane and are mutually connected by connections
- a plurality of fins 4 are arranged transversely with respect to ducts 1, in particular are provided with holes for being crossed by the latter.
- At least one of edges 4a, 4b turned toward the solar rays 2 of two adjacent fins 4 is inclined so that these edges 4a, 4b converge with an angle a less than 90°, and so on for the other fins 4, so as to form a series of pairs of fins 4 with edges 4a, 4b converging two by two.
- the distance between the ends of the contiguous edges 4a, 4b of two converging fins 4 is substantially null.
- edges 4c, 4d of two adjacent fins 4, which are opposite with respect to the converging edges 4a, 4b of the same fins 4, is inclined so that these edges 4c, 4d diverge with an angle b less than 90°, and so on for the other fins 4, so as to form a series of pairs of fins
- Fins 4 form thus an at least partially triangular wave which develops along the longitudinal axis of ducts 1.
- Angles a and/or b between the converging edges 4a, 4b or the diverging edges 4c, 4d of fins 4 are preferably comprised between 25° and 45°. In particular, angles a and b are substantially the same.
- Fins 4 and/or ducts 1 are coated with dark and opaque paints for improving the solar energy absorption.
- Figure 3 shows fins 4 enclosed in an inner case 5 open only from the side turned toward the solar rays 2.
- This inner case 5 is coated by a layer of an insulating material 6, in turn covered by an outer case 7.
- the ends of ducts 1 and connectors 3 are housed in a container 8 provided with holes for mounting and connecting the heat exchanger to the solar energy generator.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006256382A AU2006256382A1 (en) | 2005-06-09 | 2006-05-22 | Heat exchanger for solar energy generators |
EP06745360A EP1888979A1 (en) | 2005-06-09 | 2006-05-22 | Heat exchanger for solar energy generators |
MX2007015498A MX2007015498A (en) | 2005-06-09 | 2006-05-22 | Heat exchanger for solar energy generators. |
IL187852A IL187852A0 (en) | 2005-06-09 | 2007-12-03 | Heat exchanger for solar energy generators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2005A001062 | 2005-06-09 | ||
IT001062A ITMI20051062A1 (en) | 2005-06-09 | 2005-06-09 | HEAT EXCHANGER FOR SOLAR ENERGY GENERATORS |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006131946A1 true WO2006131946A1 (en) | 2006-12-14 |
Family
ID=36829698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2006/000382 WO2006131946A1 (en) | 2005-06-09 | 2006-05-22 | Heat exchanger for solar energy generators |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1888979A1 (en) |
AU (1) | AU2006256382A1 (en) |
IL (1) | IL187852A0 (en) |
IT (1) | ITMI20051062A1 (en) |
MX (1) | MX2007015498A (en) |
WO (1) | WO2006131946A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009025002A1 (en) * | 2007-08-21 | 2009-02-26 | Reginald Ian Williams | Heat exchanger for solar energy generators |
US20110180058A1 (en) * | 2011-04-08 | 2011-07-28 | Mackay Cameron R | Solar air heating device |
EP2362158A1 (en) * | 2010-02-19 | 2011-08-31 | Ernst Schweizer AG, Metallbau | Solar collector |
WO2012150356A1 (en) * | 2011-05-05 | 2012-11-08 | Behr Gmbh & Co. Kg | Solar collector for absorbing sunlight |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064868A (en) * | 1976-10-08 | 1977-12-27 | Halstead Industries, Inc. | Solar heat collector |
FR2385053A1 (en) * | 1977-03-25 | 1978-10-20 | Uranus Sa | Solar heating panel with large heat absorbent area - provided by blades through which the heat collecting fluid passes |
DE2719832A1 (en) * | 1977-05-04 | 1978-11-16 | Wolfgang Jokubeit Herstellung | Louvred solar collector with blades fixed to piping system - has inner blade edges curved to form radiation traps |
US4290419A (en) | 1979-06-28 | 1981-09-22 | Rabedeaux Richard W | Multi systems solar collector |
FR2500919A1 (en) * | 1981-02-27 | 1982-09-03 | Solaris Srl | IMPROVEMENT IN SOLAR COLLECTORS WITH WINGED TUBES |
-
2005
- 2005-06-09 IT IT001062A patent/ITMI20051062A1/en unknown
-
2006
- 2006-05-22 WO PCT/IT2006/000382 patent/WO2006131946A1/en active Application Filing
- 2006-05-22 EP EP06745360A patent/EP1888979A1/en not_active Withdrawn
- 2006-05-22 AU AU2006256382A patent/AU2006256382A1/en not_active Abandoned
- 2006-05-22 MX MX2007015498A patent/MX2007015498A/en not_active Application Discontinuation
-
2007
- 2007-12-03 IL IL187852A patent/IL187852A0/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064868A (en) * | 1976-10-08 | 1977-12-27 | Halstead Industries, Inc. | Solar heat collector |
FR2385053A1 (en) * | 1977-03-25 | 1978-10-20 | Uranus Sa | Solar heating panel with large heat absorbent area - provided by blades through which the heat collecting fluid passes |
DE2719832A1 (en) * | 1977-05-04 | 1978-11-16 | Wolfgang Jokubeit Herstellung | Louvred solar collector with blades fixed to piping system - has inner blade edges curved to form radiation traps |
US4290419A (en) | 1979-06-28 | 1981-09-22 | Rabedeaux Richard W | Multi systems solar collector |
FR2500919A1 (en) * | 1981-02-27 | 1982-09-03 | Solaris Srl | IMPROVEMENT IN SOLAR COLLECTORS WITH WINGED TUBES |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009025002A1 (en) * | 2007-08-21 | 2009-02-26 | Reginald Ian Williams | Heat exchanger for solar energy generators |
EP2362158A1 (en) * | 2010-02-19 | 2011-08-31 | Ernst Schweizer AG, Metallbau | Solar collector |
US20110180058A1 (en) * | 2011-04-08 | 2011-07-28 | Mackay Cameron R | Solar air heating device |
US8863741B2 (en) * | 2011-04-08 | 2014-10-21 | Cameron R MacKay | Solar air heating device |
WO2012150356A1 (en) * | 2011-05-05 | 2012-11-08 | Behr Gmbh & Co. Kg | Solar collector for absorbing sunlight |
Also Published As
Publication number | Publication date |
---|---|
ITMI20051062A1 (en) | 2006-12-10 |
AU2006256382A2 (en) | 2008-03-06 |
AU2006256382A1 (en) | 2006-12-14 |
EP1888979A1 (en) | 2008-02-20 |
MX2007015498A (en) | 2008-04-02 |
IL187852A0 (en) | 2008-03-20 |
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