WO2011000035A1 - Panneaux collecteurs de chaleur solaire - Google Patents

Panneaux collecteurs de chaleur solaire Download PDF

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Publication number
WO2011000035A1
WO2011000035A1 PCT/AU2010/000818 AU2010000818W WO2011000035A1 WO 2011000035 A1 WO2011000035 A1 WO 2011000035A1 AU 2010000818 W AU2010000818 W AU 2010000818W WO 2011000035 A1 WO2011000035 A1 WO 2011000035A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat collector
solar
solar heat
panel according
collector panel
Prior art date
Application number
PCT/AU2010/000818
Other languages
English (en)
Inventor
Stefan Karl Lofhelm
Original Assignee
Denso Automotive Systems Australia Pty Ltd
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
Priority claimed from AU2009903130A external-priority patent/AU2009903130A0/en
Application filed by Denso Automotive Systems Australia Pty Ltd filed Critical Denso Automotive Systems Australia Pty Ltd
Priority to AU2010268759A priority Critical patent/AU2010268759A1/en
Publication of WO2011000035A1 publication Critical patent/WO2011000035A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/003—Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
    • 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
    • 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
    • F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
    • 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
    • F24S80/40—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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 solar heat collector panels. BACKGROUND OF THE INVENTION
  • Solar hot water systems commonly include flat-plate solar heat collector panels mounted on roofs of buildings.
  • a typical flat-plate collector panel has an absorber plate in an insulated metal box under a transparent cover. Water is heated as it flows through tubes in or on the absorber plate.
  • Flat-plate collector panels typically need to be handled and installed by two people due to the weight of the absorber plates. Flat-plate collector panels are also prone to overheating under stagnation conditions when the absorber plate cannot adequately reject absorbed solar heat due to high solar collection temperatures and/or low flow of water through the tubes. What is needed is a solar heat collector panel which addresses the above difficulties.
  • a solar heat collector panel including at least one fin-and-tube heat exchanger mounted in an enclosure under a transparent cover.
  • the solar heat collector panel can include at least two fin-and-tube heat exchangers fluidly interconnected end-to-end in series in the enclosure.
  • Each heat exchanger can have a core between a pair of end tanks, wherein adjacent pairs of end tanks of adjacent pairs of the at least two heat exchangers are fluidly interconnected.
  • Each core can have a plurality of parallel tubes with heat-absorbing fins extending between adjacent pairs of tubes.
  • Each fin can be a flat strip bent into a corrugated or serpentine formation having crests coupled to adjacent pairs of tubes.
  • Each core can be an automotive radiator core, for example, a cross-flow automotive radiator core.
  • the outermost pair of end tanks of the at least two heat exchangers can be fluidly connectable to a solar hot water system via quick-connect plumbing fittings.
  • Adjacent pairs of end tanks of adjacent pairs of the at least two heat exchangers can be fluidly interconnected via quick-connect plumbing fittings.
  • the end tanks of the at least two heat exchangers can be internally mounted to the enclosure via quick-connect brackets.
  • Thermal insulation material can be provided in the enclosure under each heat exchanger.
  • the present invention also provides a solar array including at least two of the above solar heat collector panels fluidly interconnected side-by-side in series and/or in parallel.
  • the at least two solar heat collector panels can be fluidly interconnected via a quick- connect plumbing fitting.
  • the present invention also provides a solar hot water system including at least one of the above solar heat collector panels.
  • Figure 1 is a schematic diagram of an embodiment of a solar heat collector panel of the invention
  • Figure 2 is an exploded perspective view of the panel
  • Figures 3(a) to 3(d) are plan, side, end and section views of the panel
  • Figures 4(a) to 4(g) are sections through components of the panel
  • Figure 5 is an exploded perspective view of an end tank of a heat exchanger of the panel with quick-connect plumbing fittings
  • Figure 6 is an exploded perspective view of an end tank of the panel with an inter- tank connector
  • Figure 7 is an exploded perspective view of two solar heat collector panels connected together in an array by an inter-panel connector.
  • FIGS 1 and 2 illustrate an embodiment of a solar heat collector panel 10 of the invention.
  • the panel 10 includes two fin-and-tube heat exchangers 12 mounted in an enclosure 14 under a transparent cover 16.
  • the two heat exchangers 12 each have a solar heat- absorbing core 18 between end tanks 22, 24.
  • Adjacent innermost end tanks 22 of the two heat exchangers 12 are fluidly interconnected by an inter- tank connector 26 so that the two heat exchangers 12 are fluidly interconnected end-to-end in series.
  • Other arrangements which fluidly interconnect multiple heat exchangers 12 may also be used.
  • the multiple heat exchangers 12 are optionally fluidly interconnected in series and/or in parallel in the enclosure 14.
  • Outermost end tanks 24 of the two heat exchangers 12 are fluidly connected via pipes to a solar hot water system 28 having a storage tank 30 and a controller/pump 32 to transfer a heating fluid or a liquid heat transfer solution or water between the tank 30 and the panel 10.
  • the tank 30 includes an internal heat exchanger 38 to transfer heat from the heating fluid to water for heating in a conventional hot water heater or booster heater (not shown). Alternatively, a separate heat exchanger (not shown) to transfer heat from the heating fluid to the water inside tank 30 may be used.
  • Each core 18 has a plurality of parallel tubes 34 with heat-absorbing fins 36 extending between adjacent pairs of tubes 34.
  • Each fin 36 is, for example, a flat strip bent into a corrugated or serpentine formation having crests thermally coupled to adjacent pairs of tubes 34.
  • the tubes 34 and fins 36 are dark-coloured, for example, black.
  • Each core 18 is, for example, an automotive radiator core, for example, a cross-flow automotive radiator core.
  • the panel 10 is quickly assembled, and quickly connectable to the solar hot water system 28, by quick-connect components illustrated in Figures 3 to 7.
  • the two heat exchangers 12 are removably mounted internally to the enclosure 14 by quick-connect brackets 42 configured to receive mounting lugs 43 provided on outer end surfaces of the outermost end tanks 24.
  • Thermal insulation material 44 for example sarking or foil, is provided in the enclosure 14 under each heat exchanger 12.
  • adjacent innermost end tanks 22 of the two heat exchangers 12 are removably mounted internally to the enclosure 14 by quick-connect brackets 42 configured to receive mounting lugs 43 provided on opposed, facing inner end surfaces of the innermost end tanks 22.
  • An internal fluid connection sleeve 46 is also provided on each inner end surface of the innermost end tanks 22.
  • a quick-connect inter- tank connector 26 is sealingly received in the sleeve 46 and by O-rings 48.
  • the inter-tank connector 26 is a tube 50 having shoulders to mount the O-rings 48 on the tube 50 on opposite sides of a central annular flange 52.
  • the transparent cover 16 is removably mounted to the enclosure 14 by pop rivets 54, as illustrated in Figures 4(f) and 4(g).
  • external fluid connection sleeves 56 are provided on opposite sides of the outermost end tanks 24 to allow the panel 10 to be selectively externally fluidly connected as a fluid inlet or outlet.
  • one of the sleeves 56 is configured as a fluid inlet or outlet using a quick-connect external connector 58 that is sealing received in the sleeve 56 by an O-ring 48.
  • the external connector 58 allows the panel 10 to be quickly plumbed into pipes, for example copper pipes, of the solar hot water system 28.
  • the opposite sleeve 56 is blanked off by a plug 60 that is sealing received in the sleeve 56 by an O-ring 48, as illustrated in Figure 4(d).
  • Screws 57 (not shown in Figure 5) releasably fasten the external connector 58 and plug 60 to flanges formed on the sleeves 56.
  • Additional sleeve 47 may be provided to allow different connection configurations if desired.
  • a blanking plate 61 may be provided to cover unused apertures in enclosure 14.
  • FIG. 7 illustrates two panels 10 interconnected side-by-side in series in a solar array. Other equivalent in series or in parallel arrangements of panels 10 may also be used.
  • the two panels 10 are quickly interconnected by a quick-connect inter-panel connector 62 which is sealing received in opposed, facing external fluid connection sleeves 56 of the two panels 10 by O-rings (not shown).
  • the inter-panel connector 62 has two outer annular flanges 64 on a tube 66 axially inwardly of opposite axial ends of the tube 66.
  • the opposite axial ends of the tube 66 are sealingly received in the opposed, facing sleeves 56 of the two panels 10 by O-rings (not shown) retained by shoulders on the tube 66 adjacent the outer annular flanges 64.
  • the outer annular flanges 64 axially abut opposed, facing sides of the two panels 10.
  • Two inner annular flanges 68 are provided on the tube 66 axially inwardly of the outer annular flanges 64.
  • Two linear flanges 70 are provided on opposite sides of the tube 66 (only one linear flange 70 is visible in Figure 6) between the inner annular flanges 68.
  • the inner annular flanges 68 facilitate axial movement of the inter-panel connector 62 to interconnect the two panels 10, while the linear flanges 70 facilitate rotation of the inter-panel connector 62 during interconnection.
  • the two interconnected panels 10 are externally connectable to pipes (not shown) by an external connector 58 that is sealingly received in an external fluid connection sleeve 56 on the one of the panels 10.
  • the enclosure 14 is made, for example, of zinc-coated steel or aluminium sheeting
  • the transparent cover 16 is made, for example, of glass or Perspex or plastic.
  • Adhesive tape 20 (refer Figure 2) is provided to adhere the transparent cover 16 to the enclosure 14.
  • the core 18 of each heat exchanger 12 is made, for example, of aluminium, and the end tanks 22,24 are formed, for example, as integral mouldings in plastics.
  • the plug 60, inter-tank connector 26, and inter-panel connector 62 are formed, for example, as integral mouldings in plastics.
  • Embodiments of the invention provide thin, compact and lightweight solar heat collector panels that can be safely handled on roofs of buildings by one person during installation and service.
  • the quick-connect mounting fittings allow the panels to be quickly and easily assembled and disassembled in a modular fashion.
  • the quick-connect plumbing fittings allow the panels to be quickly connected to solar hot water systems, as well as quickly interconnected as modules in scalable solar arrays. No complex plumbing is required to plumb the panels into copper pipes of solar hot water systems.
  • the panels are designed for low pressure operation via a closed circuit to an integral storage tank heat exchanger thereby simplifying plumbing requirements and improving reliability.
  • the fin-and-tube heat exchangers used in the panels of the invention have a high fluid-to-surface contact ratio.
  • the effective solar heat absorbing surface area of the fin-and-tube heat exchangers is greater than that of conventional flat-plate solar heat collector panels.
  • the fluid-to-surface contact ratio of the fin-and-tube heat exchangers promote convective cooling and heat dissipation at high water temperatures, thereby minimising or preventing overheating of the panels during stagnation conditions of high sun load combined with no or low hot water consumption.
  • the high ratio also allows water flow rates through the panels to be higher than conventional panels, thereby providing greater thermal energy transfer capability.
  • the solar heat collector panels of the present invention may be alternatively implemented in either scaled-down embodiments having a single heat exchanger, or in scaled-up embodiments having more than two heat exchangers, for example, three or four heat exchangers connected together.
  • the solar heat collector panels of the invention can be implemented in single panel installations, or in solar arrays of two or more panels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Photovoltaic Devices (AREA)

Abstract

La présente invention concerne un panneau collecteur de chaleur solaire, comprenant au moins un échangeur de chaleur à ailette et tuyau monté dans une enceinte sous un couvercle transparent.
PCT/AU2010/000818 2009-07-03 2010-06-29 Panneaux collecteurs de chaleur solaire WO2011000035A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2010268759A AU2010268759A1 (en) 2009-07-03 2010-06-29 Solar heat collector panels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2009903130A AU2009903130A0 (en) 2009-07-03 Solar heat collector panels
AU2009903130 2009-07-03

Publications (1)

Publication Number Publication Date
WO2011000035A1 true WO2011000035A1 (fr) 2011-01-06

Family

ID=43410360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2010/000818 WO2011000035A1 (fr) 2009-07-03 2010-06-29 Panneaux collecteurs de chaleur solaire

Country Status (2)

Country Link
AU (1) AU2010268759A1 (fr)
WO (1) WO2011000035A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012150356A1 (fr) * 2011-05-05 2012-11-08 Behr Gmbh & Co. Kg Capteur solaire servant à absorber la lumière solaire
WO2015121201A1 (fr) * 2014-02-12 2015-08-20 Mt Åsen As Capteur de collecteur thermique solaire
US10336912B2 (en) 2014-08-01 2019-07-02 Basf Se Methods for producing and using aqueous polyurethane/polyacrylate hybrid dispersions and use of said aqueous polyurethane/polyacrylate hybrid dispersions in coating agents

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290419A (en) * 1979-06-28 1981-09-22 Rabedeaux Richard W Multi systems solar collector
FR2501846A1 (fr) * 1981-03-13 1982-09-17 Merlin Gabriel Tube pour echangeur thermique et application de ce tube
US4505261A (en) * 1983-12-19 1985-03-19 Hunter Billy D Modular passive solar heating system
CN1595010A (zh) * 2004-06-29 2005-03-16 浙江大学 真空玻璃盖板热管平板式太阳能热水器
US20090025709A1 (en) * 2004-08-17 2009-01-29 Goczynski Bogdan Direct Heated Solar Collector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290419A (en) * 1979-06-28 1981-09-22 Rabedeaux Richard W Multi systems solar collector
FR2501846A1 (fr) * 1981-03-13 1982-09-17 Merlin Gabriel Tube pour echangeur thermique et application de ce tube
US4505261A (en) * 1983-12-19 1985-03-19 Hunter Billy D Modular passive solar heating system
CN1595010A (zh) * 2004-06-29 2005-03-16 浙江大学 真空玻璃盖板热管平板式太阳能热水器
US20090025709A1 (en) * 2004-08-17 2009-01-29 Goczynski Bogdan Direct Heated Solar Collector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012150356A1 (fr) * 2011-05-05 2012-11-08 Behr Gmbh & Co. Kg Capteur solaire servant à absorber la lumière solaire
WO2015121201A1 (fr) * 2014-02-12 2015-08-20 Mt Åsen As Capteur de collecteur thermique solaire
US10336912B2 (en) 2014-08-01 2019-07-02 Basf Se Methods for producing and using aqueous polyurethane/polyacrylate hybrid dispersions and use of said aqueous polyurethane/polyacrylate hybrid dispersions in coating agents

Also Published As

Publication number Publication date
AU2010268759A1 (en) 2012-02-02

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