WO2006131946A1 - Echangeur de chaleur pour generateurs a energie solaire - Google Patents

Echangeur de chaleur pour generateurs a energie solaire Download PDF

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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
Application number
PCT/IT2006/000382
Other languages
English (en)
Inventor
Reginald Ian Williams
Original Assignee
Reginald Ian Williams
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 Reginald Ian Williams filed Critical Reginald Ian Williams
Priority to AU2006256382A priority Critical patent/AU2006256382A1/en
Priority to EP06745360A priority patent/EP1888979A1/fr
Priority to MX2007015498A priority patent/MX2007015498A/es
Publication of WO2006131946A1 publication Critical patent/WO2006131946A1/fr
Priority to IL187852A priority patent/IL187852A0/en

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

L'invention concerne un échangeur de chaleur constitué d'un ou de plusieurs conduit(s) (1) pouvant être exposé(s) à une source de rayons solaires (2) et contenir un fluide à faire chauffer par l'énergie transmise par lesdits rayons (2). Dans l'échangeur de chaleur ci-décrit une pluralité d'ailettes (4) est agencée transversalement par rapport aux conduits (1), au moins un des bords (4a, 4b) tourné vers les rayons solaires (2) de deux ailettes adjacentes (4) étant incliné de façon que ces bords (4a, 4b) convergent avec un angle (a) inférieur à 90° et ainsi de suite pour les autres ailettes (4), de façon à former une série de paires d'ailettes (4) avec les bords (4a, 4b) convergeant deux par deux.
PCT/IT2006/000382 2005-06-09 2006-05-22 Echangeur de chaleur pour generateurs a energie solaire WO2006131946A1 (fr)

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 (fr) 2005-06-09 2006-05-22 Echangeur de chaleur pour generateurs a energie solaire
MX2007015498A MX2007015498A (es) 2005-06-09 2006-05-22 Permutador termico para generadores de energia solar.
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 (it) 2005-06-09 2005-06-09 Scambiatore di calore per generatori ad energia solare

Publications (1)

Publication Number Publication Date
WO2006131946A1 true WO2006131946A1 (fr) 2006-12-14

Family

ID=36829698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000382 WO2006131946A1 (fr) 2005-06-09 2006-05-22 Echangeur de chaleur pour generateurs a energie solaire

Country Status (6)

Country Link
EP (1) EP1888979A1 (fr)
AU (1) AU2006256382A1 (fr)
IL (1) IL187852A0 (fr)
IT (1) ITMI20051062A1 (fr)
MX (1) MX2007015498A (fr)
WO (1) WO2006131946A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009025002A1 (fr) * 2007-08-21 2009-02-26 Reginald Ian Williams Échangeur thermique pour générateurs d'énergie solaire
US20110180058A1 (en) * 2011-04-08 2011-07-28 Mackay Cameron R Solar air heating device
EP2362158A1 (fr) * 2010-02-19 2011-08-31 Ernst Schweizer AG, Metallbau Collecteur solaire
WO2012150356A1 (fr) * 2011-05-05 2012-11-08 Behr Gmbh & Co. Kg Capteur solaire servant à absorber la lumière solaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064868A (en) * 1976-10-08 1977-12-27 Halstead Industries, Inc. Solar heat collector
FR2385053A1 (fr) * 1977-03-25 1978-10-20 Uranus Sa Perfectionnements aux capteurs solaires
DE2719832A1 (de) * 1977-05-04 1978-11-16 Wolfgang Jokubeit Herstellung Jalousie-absorber fuer sonnenkollektoren zur nutzung der sonnenenergie
US4290419A (en) 1979-06-28 1981-09-22 Rabedeaux Richard W Multi systems solar collector
FR2500919A1 (fr) * 1981-02-27 1982-09-03 Solaris Srl Perfectionnement aux capteurs solaires a tubes ailetes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064868A (en) * 1976-10-08 1977-12-27 Halstead Industries, Inc. Solar heat collector
FR2385053A1 (fr) * 1977-03-25 1978-10-20 Uranus Sa Perfectionnements aux capteurs solaires
DE2719832A1 (de) * 1977-05-04 1978-11-16 Wolfgang Jokubeit Herstellung Jalousie-absorber fuer sonnenkollektoren zur nutzung der sonnenenergie
US4290419A (en) 1979-06-28 1981-09-22 Rabedeaux Richard W Multi systems solar collector
FR2500919A1 (fr) * 1981-02-27 1982-09-03 Solaris Srl Perfectionnement aux capteurs solaires a tubes ailetes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009025002A1 (fr) * 2007-08-21 2009-02-26 Reginald Ian Williams Échangeur thermique pour générateurs d'énergie solaire
EP2362158A1 (fr) * 2010-02-19 2011-08-31 Ernst Schweizer AG, Metallbau Collecteur solaire
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 (fr) * 2011-05-05 2012-11-08 Behr Gmbh & Co. Kg Capteur solaire servant à absorber la lumière solaire

Also Published As

Publication number Publication date
AU2006256382A1 (en) 2006-12-14
MX2007015498A (es) 2008-04-02
AU2006256382A2 (en) 2008-03-06
IL187852A0 (en) 2008-03-20
ITMI20051062A1 (it) 2006-12-10
EP1888979A1 (fr) 2008-02-20

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Free format text: DE ACORDO COM O EXAME EM PAPEL NA PAGINA 19 DA PETICAO 020070174062, A PROCURACAO APRESENTADA E UMA COPIA SEM AUTENTICACAO, PORTANTO SERA DADA A RETIRADA DO PEDIDO.