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WO2013038555A1 - Récepteur de chaleur solaire - Google Patents

Récepteur de chaleur solaire Download PDF

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Publication number
WO2013038555A1
WO2013038555A1 PCT/JP2011/071186 JP2011071186W WO2013038555A1 WO 2013038555 A1 WO2013038555 A1 WO 2013038555A1 JP 2011071186 W JP2011071186 W JP 2011071186W WO 2013038555 A1 WO2013038555 A1 WO 2013038555A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
casing
solar
sunlight
heat transfer
Prior art date
Application number
PCT/JP2011/071186
Other languages
English (en)
Japanese (ja)
Inventor
青山　邦明
小林　一太
田川　雅士
Original Assignee
三菱重工業株式会社
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 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Priority to PCT/JP2011/071186 priority Critical patent/WO2013038555A1/fr
Publication of WO2013038555A1 publication Critical patent/WO2013038555A1/fr

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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
    • 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
    • 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
    • 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
    • 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 solar heat receiver that heats a compressive working fluid passing through the inside of a heat transfer tube by heating with sunlight.
  • the present invention has been made in view of the above circumstances, and can improve the thermal efficiency by uniformly heating the peripheral surface of the heat transfer tube through which the compressive working fluid flows, and the thermal stress acting on the heat transfer tube can be improved.
  • An object of the present invention is to provide a solar heat receiver that can be made uniform to extend the life of a heat transfer tube.
  • the solar light entrance is formed at each position where the solar light projected from the light collector can be irradiated to one surface and the other surface of the heat receiving surface. It is characterized by that.
  • the configuration of the present invention is as follows.
  • a casing formed with a solar light inlet that is arranged at the top of a tower erected on the ground and takes in sunlight that has been collected and projected by a light collector disposed on the ground, and A plurality of heat transfer tubes disposed in the casing and heated by irradiation with sunlight taken into the casing;
  • a solar heat receiver with In the casing, a plurality of heat receiving surfaces spreading in a vertical plane, when viewed in plan, is set radially with the tower as a center, and a plurality of the heat transfer tubes are arranged along each heat receiving surface,
  • the solar light inlet is formed at each position where the solar light projected from the light collector can be irradiated to the opposing surfaces of the heat receiving surfaces adjacent to each other in the circumferential direction in the casing. It is characterized by.
  • the configuration of the present invention is as follows.
  • a casing formed with a solar light inlet that is arranged at the top of a tower erected on the ground and takes in sunlight that has been collected and projected by a light collector disposed on the ground, and A plurality of heat transfer tubes disposed in the casing and heated by irradiation with sunlight taken into the casing;
  • a solar heat receiver with In the casing a plurality of heat receiving surfaces spreading in a vertical plane are set in a state where adjacent ones face each other while taking a mutual interval, and a plurality of the heat transfer tubes are arranged along each heat receiving surface,
  • the solar light inlet is formed at each position where the sunlight projected from the light collector can be irradiated to one surface and the other surface of the heat receiving surfaces of the casing. It is characterized by.
  • the compressive working fluid passing through the heat transfer tube can be heated uniformly, the heating efficiency can be improved, and the thermal stress acting on the heat transfer tube can be made uniform.
  • the stress acting on the heat transfer tube can be reduced as a whole, and the life of the heat transfer tube can be extended.
  • positioned The block diagram for demonstrating the relationship between the solar heat receiver which concerns on Example 3 of this invention, and the mirror arrangement
  • FIG. 1 is a schematic configuration diagram showing a solar thermal dust turbine and a solar thermal gas turbine power generator equipped with a solar heat receiver according to the first embodiment.
  • FIG. 2 is a solar heat receiver according to the first embodiment, and sunlight is applied to the solar heat receiver.
  • FIG. 3 is a diagram for explaining the outline of the condenser, and
  • FIG. 4 is a simplified illustration of the arrangement state of the heat transfer tubes. It is a schematic block diagram shown.
  • a solar gas turbine 1 includes a compressor 2 that compresses and compresses a compressive working fluid (working fluid such as air), and heats the compressive working fluid with heat converted from sunlight.
  • the apparatus is mainly composed of the solar heat receiver 100 according to the first embodiment for raising the temperature and the turbine 3 that converts thermal energy held by the high-temperature and high-pressure compressive working fluid into mechanical energy. That is, the solar gas turbine 1 uses solar thermal energy to heat and heat the compressive working fluid instead of a combustor that burns fuel such as natural gas to generate high-temperature and high-pressure combustion gas.
  • a heat receiver 100 is provided.
  • the solar thermal gas turbine power generator 5 that generates power using sunlight is obtained.
  • the reheater 6 preheats the high-pressure compressive working fluid boosted by the compressor 2 using the exhaust heat of the compressive working fluid discharged from the chimney 7 to the atmosphere after working in the turbine 3. .
  • the solar heat receiver 100 is a device for converting sunlight into heat energy, and as shown in FIG. 2, the top of the tower 9 standing on the ground 8 (for example, the tip of the tower 9 having a height of 100 m). ).
  • mirror arrangement surfaces 10a and 10b are set.
  • two mirror arrangement surfaces 10a and 10b are arranged with the tower 9 interposed therebetween.
  • a plurality of collectors 11 (for example, 400) that reflect sunlight toward the solar heat receiver 100 are arranged (for example, 400).
  • Each concentrator 11 is a device that condenses light while efficiently reflecting sunlight, and the direction of the concentrator 11 is the sun so that the reflected and condensed sunlight is projected toward the solar heat receiver 100. It is to be controlled according to the movement of.
  • the casing 101 of the solar heat receiver 100 is disposed at the top of the tower 9, and a heat insulating material is applied to the inner wall surface of the casing 101 to form a heat insulating wall.
  • a heat receiving surface 102 that extends in a vertical plane is set.
  • a plurality of (for example, 500) heat transfer tubes 103 are arranged along the heat receiving surface 102 as shown in a simplified manner in FIG. That is, a surface formed by arranging a plurality of heat transfer tubes 103 in a planar shape is a heat receiving surface 102.
  • a compressive working fluid flows through each heat transfer tube 103.
  • the sunlight entrance 104a takes in the sunlight reflected and condensed by the condenser 11 arranged on the mirror arrangement surface 10a into the casing 101 and receives one surface of the heat receiving surface 102 (the left surface in FIG. 1). ) To be irradiated.
  • the sunlight entrance 104b takes the sunlight reflected and projected by the condenser 11 arranged on the mirror arrangement surface 10b into the casing 101, and the other surface of the heat receiving surface 102 (the right surface in FIG. 1). ) To be irradiated.
  • one of the heat receiving surfaces 102 that is, of the peripheral surfaces of the plurality of heat transfer tubes 103 arranged along the heat receiving surface 102, the solar light taken in from the sunlight inlet 104a is formed on the half peripheral surface on the sunlight inlet 104a side. Is irradiated.
  • the other surface of the heat receiving surface 102 that is, the peripheral surface of the plurality of heat transfer tubes 103 arranged along the heat receiving surface 102
  • sunlight taken in from the solar light inlet 104 b is placed on the half peripheral surface on the solar light inlet 104 b side. Is irradiated.
  • each heat transfer tube 103 is heated from the peripheral surface on one side and the peripheral surface on the other side, that is, both surfaces (all peripheral surfaces). Accordingly, the peripheral surface of the heat transfer tube through which the compressive working fluid flows can be heated uniformly, and the compressive working fluid can be effectively heated. Further, the thermal stress acting on the heat transfer tube 103 can be made uniform to reduce the stress acting on the heat transfer tube 103 as a whole, and the life of the heat transfer tube 103 is extended. Further, since the heat transfer tubes 103 are arranged along one heat receiving surface 102, a simple tube arrangement structure is obtained, and the overall configuration can be simplified.
  • the compressive working fluid that passes through the heat transfer tube is uniformly heated, and thus is sent from the solar heat receiver 100 to the turbine 3. Since the temperature of the compressive working fluid rises more than before, the turbine efficiency can be improved more than before.
  • the solar thermal gas turbine 1 having better turbine efficiency than the conventional one is provided, and the power generation efficiency is higher than before, so that the energy recovery rate can be improved. , Its reliability can be improved.
  • a solar heat receiver 200 according to Embodiment 2 of the present invention will be described with reference to FIG.
  • the solar heat receiver 200 is a device for converting sunlight into heat energy, and as shown in FIG. 5, the top of the tower 9 erected on the ground 8 (for example, the tip of the tower 9 having a height of 200 m). ).
  • mirror arrangement surfaces 10a, 10b, and 10c are set.
  • three mirror arrangement surfaces 10a, 10b, and 10c are arranged at substantially equal intervals adjacent to each other in the circumferential direction on the circumference centered on the tower 9 when viewed in a plan view.
  • a plurality of condensers 11 (for example, 400) that reflect sunlight toward the solar heat receiver 200 are arranged (for example, 400).
  • Each concentrator 11 is a device that collects sunlight while efficiently reflecting sunlight, and the direction of the concentrator 11 is the sun so that the reflected and condensed sunlight is projected toward the solar heat receiver 200. It is to be controlled according to the movement of.
  • the casing 201 of the solar heat receiver 200 is disposed at the top of the tower 9, and a heat insulating material is applied to the inner wall surface of the casing 201 to form a heat insulating wall.
  • a heat insulating material is applied to the inner wall surface of the casing 201 to form a heat insulating wall.
  • three heat receiving surfaces 202a, 202b, and 202c that spread in a vertical plane are set.
  • the three heat receiving surfaces 202a, 202b, and 202c are arranged radially (axisymmetrically) with the tower 9 as the center when viewed in plan view.
  • a plurality of (for example, 500) heat transfer tubes 203 are arranged along each heat receiving surface 202a, 202b, 202c (see FIG. 4). That is, the surfaces formed by arranging the plurality of heat transfer tubes 203 in a plane form are the heat receiving surfaces 202a, 202b, 202c.
  • a compressive working fluid flows through each heat transfer tube 203.
  • the casing 201 is formed with three sunlight inlets 204a, 204b, and 204c (however, the sunlight inlet 204c is not shown).
  • the sunlight entrance 204a captures the sunlight reflected and projected by the condenser 11 arranged on the mirror arrangement surface 10a into the casing 201, and opposes the heat receiving surface 202c among the surfaces of the heat receiving surface 202a.
  • the sunlight entrance 204b is a surface of the heat receiving surface 202a facing the heat receiving surface 202b and the heat receiving surface 202b of the sunlight reflected and collected by the condenser 11 disposed on the mirror arrangement surface 10b.
  • the sunlight entrance 204c includes the surface of the heat receiving surface 202b facing the heat receiving surface 202c and the heat receiving surface 202c of the sunlight reflected and collected by the collector 11 disposed on the mirror arrangement surface 10c. Are formed at positions where the surface facing the heat receiving surface 202b is irradiated.
  • the solar peripheral wall on the solar inlet 204a side has sunlight.
  • Sunlight taken from the entrance 204a is irradiated.
  • the sun light inlet 204b side has a semi-peripheral surface. Sunlight taken from the entrance 204b is irradiated.
  • the sun light inlet 204b side has a half peripheral surface. Sunlight taken from the entrance 204b is irradiated.
  • the solar inlet 204c side has a semi-peripheral surface. Sunlight taken from the entrance 204c is irradiated.
  • the sun light inlet 204a side has a half peripheral surface. Sunlight taken from the entrance 204a is irradiated.
  • each heat transfer tube 203 arranged on each heat receiving surface 202a, 202b, 202c is heated from the peripheral surface on one side and the peripheral surface on the other side, that is, both surfaces (all peripheral surfaces). Accordingly, the peripheral surface of the heat transfer tube through which the compressive working fluid flows can be heated uniformly, and the compressive working fluid can be effectively heated. Further, the thermal stress acting on the heat transfer tube 203 can be made uniform to reduce the stress acting on the heat transfer tube 203 as a whole, and the life of the heat transfer tube 203 is extended. Moreover, it is suitable for Example 2 to install in the area near the equator where sunlight is irradiated toward the ground 8 from substantially right above.
  • N heat receiving surfaces are set and three sunlight inlets are provided, but generally speaking, when N is an integer of 3 or more, N heat receiving surfaces are provided. It is also possible to set the surface and provide N sunlight entrances. Of course, also at this time, the N heat receiving surfaces are set radially (axisymmetrically arranged) around the tower when viewed in plan, and a plurality of heat transfer tubes are arranged along each heat receiving surface. Among them, N sunlight inlets are formed at each position where the sunlight projected from the condenser can be irradiated to the opposing surfaces of the heat receiving surfaces adjacent to each other in the circumferential direction.
  • a solar heat gas turbine or a solar gas generator can be configured using the solar heat receiver 200 of the second embodiment instead of the solar heat receiver 100.
  • a solar heat receiver 300 according to Embodiment 3 of the present invention will be described with reference to FIG.
  • the solar heat receiver 300 is a device for converting sunlight into heat energy. As shown in FIG. 6, the top of the tower 9 erected on the ground 8 (for example, the tip of the tower 9 having a height of 300 m). ).
  • mirror arrangement surfaces 10a, 10b, 10c, 10d, 10e, and 10f are set.
  • six mirror arrangement surfaces 10a, 10b, 10c, 10d, 10e, and 10f are arranged in a line with a mutual interval therebetween.
  • Each mirror arrangement surface 10a, 10b, 10c, 10d, 10e, 10f has a plurality of collectors 11 (see FIG. 3) that reflect sunlight toward the solar heat receiver 300 (for example, 400). Is arranged.
  • Each concentrator 11 is a device that collects sunlight while efficiently reflecting sunlight, and the direction of the concentrator 11 is the sun so that the reflected and condensed sunlight is projected toward the solar heat receiver 300. It is to be controlled according to the movement of.
  • the casing 301 of the solar heat receiver 300 is disposed at the top of the tower 9, and a heat insulating material is applied to the inner wall surface of the casing 301 to form a heat insulating wall.
  • three heat receiving surfaces 302a, 302b, and 302c that spread in the vertical plane are set.
  • the three heat receiving surfaces 302a, 302b, and 302c are set in a state where adjacent ones face each other (become parallel) while keeping a mutual interval.
  • a plurality of (for example, 500) heat transfer tubes 303 are arranged along each of the heat receiving surfaces 302a, 302b, and 302c (see FIG. 4). That is, the surfaces formed by arranging a plurality of heat transfer tubes 303 in a planar shape are heat receiving surfaces 302a, 302b, and 302c.
  • a compressive working fluid flows through each heat transfer tube 303.
  • the sunlight entrance 304a takes in the casing 301 the sunlight reflected and condensed by the condenser 11 arranged on the mirror arrangement surface 10a and projects one surface of the heat receiving surface 302a (the left surface in FIG. 6). ) To be irradiated.
  • the sunlight entrance 304b takes in sunlight reflected and collected by the condenser 11 arranged on the mirror arrangement surface 10d into the casing 301, and the other surface of the heat receiving surface 302a (the right surface in FIG. 6). ) And reflected by the collector 11 arranged on the mirror arrangement surface 10b and projected from the sunlight is taken into the casing 301, and one surface of the heat receiving surface 302b (in FIG. 6) (Left side) is formed at a position to be irradiated.
  • the sunlight entrance 304c takes the sunlight reflected and collected by the condenser 11 arranged on the mirror arrangement surface 10e into the casing 301, and the other surface of the heat receiving surface 302b (the right surface in FIG. 6). ) And reflected by the collector 11 arranged on the mirror arrangement surface 10c and projected from the sunlight is taken into the casing 301, and one surface of the heat receiving surface 302c (in FIG. 6) (Left side) is formed at a position to be irradiated.
  • the sunlight entrance 304d takes the sunlight reflected and collected by the collector 11 arranged on the mirror arrangement surface 10f into the casing 301, and the other surface of the heat receiving surface 302b (the right surface in FIG. 6). ) To be irradiated.
  • one of the heat receiving surfaces 302a that is, of the peripheral surfaces of the plurality of heat transfer tubes 303 arranged along the heat receiving surfaces 302a, the solar light taken in from the sunlight inlet 304a is formed on the half peripheral surface on the sunlight inlet 304a side. Is irradiated.
  • the other surface of the heat receiving surface 302a that is, the peripheral surface of the plurality of heat transfer tubes 303 arranged along the heat receiving surface 302a
  • the solar light taken in from the solar light inlet 304b on the half peripheral surface on the solar light inlet 304b side. Is irradiated.
  • one of the surfaces of the heat receiving surface 302b that is, the peripheral surface of the plurality of heat transfer tubes 303 arranged along the heat receiving surface 302b, was taken in from the solar light inlet 304b into the half peripheral surface on the solar light inlet 304b side. Sunlight is irradiated.
  • the sun taken in from the solar light inlet 304c is formed on the half peripheral surface on the solar light inlet 304c side. Light is irradiated.
  • one of the heat receiving surfaces 302c that is, the peripheral surface of the plurality of heat transfer tubes 303 arranged along the heat receiving surface 302c
  • the solar light taken in from the sunlight inlet 304c is formed on the half peripheral surface on the sunlight inlet 304c side. Is irradiated.
  • the other surface of the heat receiving surface 302c that is, the peripheral surface of the plurality of heat transfer tubes 303 arranged along the heat receiving surface 302c
  • the solar light taken in from the solar light inlet 304d on the half peripheral surface on the solar light inlet 304d side Is irradiated.
  • each heat transfer tube 303 arranged on each heat receiving surface 302a, 302b, 302c is heated from the peripheral surface on one side and the peripheral surface on the other side, that is, both surfaces (all peripheral surfaces). Accordingly, the peripheral surface of the heat transfer tube through which the compressive working fluid flows can be heated uniformly, and the compressive working fluid can be effectively heated. Further, the thermal stress acting on the heat transfer tube 303 can be made uniform to reduce the stress acting on the heat transfer tube 303 as a whole, and the life of the heat transfer tube 303 is extended. Moreover, it is suitable for Example 3 to install in the area of high latitude where sunlight is irradiated to the ground 8 diagonally. Furthermore, since the heat receiving surface is divided into three, the area of the heat receiving surface per sheet can be reduced, and the overall outer diameter can be reduced.
  • M heat receiving surfaces are set and four sunlight inlets are provided.
  • M heat receiving surfaces are provided. It is also possible to set the surface to have M + 1 solar entrances.
  • M heat receiving surfaces are set in a state where adjacent ones face each other while being spaced apart from each other, and a plurality of heat tubes are arranged along each heat receiving surface.
  • M + 1 sunlight inlets are formed at each position where the sunlight projected from the collector can be irradiated to one surface and the other surface.
  • a solar heat gas turbine or a solar gas generator can be configured using the solar heat receiver 300 of the third embodiment instead of the solar heat receiver 100.

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  • 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)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Une surface de réception de chaleur (102) qui s'élargit dans le plan vertical est installée dans le corps (101) d'un récepteur de chaleur solaire (100) placé au sommet d'une tour (9). Des tuyaux de transfert de chaleur (103) par lesquels s'écoule un fluide actif compressible sont agencés dans le plan de la surface de réception de chaleur (102). La lumière du soleil projetée par un collecteur de lumière agencé dans une surface à agencement en miroir (10a) est capturée dans le corps (101) par le biais d'une entrée de lumière solaire (104a), et se répand sur un côté de surface circonférentielle des tuyaux de transfert de chaleur (103). La lumière du soleil projetée par un collecteur de lumière agencé dans une surface à agencement en miroir (10b) est capturée dans le corps (101) par le biais d'une entrée de lumière solaire (104b), et se répand sur l'autre côté de surface circonférentielle des tuyaux de transfert de chaleur (103). En conséquence, toute la circonférence des tuyaux de transfert de chaleur (103) est exposée à la lumière du soleil et les tuyaux sont chauffés de façon uniforme, améliorant ainsi l'efficacité de chauffage.
PCT/JP2011/071186 2011-09-16 2011-09-16 Récepteur de chaleur solaire WO2013038555A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2011/071186 WO2013038555A1 (fr) 2011-09-16 2011-09-16 Récepteur de chaleur solaire

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Application Number Priority Date Filing Date Title
PCT/JP2011/071186 WO2013038555A1 (fr) 2011-09-16 2011-09-16 Récepteur de chaleur solaire

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WO2013038555A1 true WO2013038555A1 (fr) 2013-03-21

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50122945A (fr) * 1974-03-11 1975-09-26
JPS5893740U (ja) * 1981-12-18 1983-06-25 リツカ−株式会社 太陽熱コレクタ−
US20090241939A1 (en) * 2008-02-22 2009-10-01 Andrew Heap Solar Receivers with Internal Reflections and Flux-Limiting Patterns of Reflectivity
US20110005513A1 (en) * 2007-08-27 2011-01-13 Mills David R Linear fresnel solar arrays
JP2011094820A (ja) * 2009-10-27 2011-05-12 Mitsubishi Heavy Ind Ltd 太陽光集光受熱システム
JP2011220557A (ja) * 2010-04-06 2011-11-04 Mitsubishi Heavy Ind Ltd 太陽熱受熱器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50122945A (fr) * 1974-03-11 1975-09-26
JPS5893740U (ja) * 1981-12-18 1983-06-25 リツカ−株式会社 太陽熱コレクタ−
US20110005513A1 (en) * 2007-08-27 2011-01-13 Mills David R Linear fresnel solar arrays
US20090241939A1 (en) * 2008-02-22 2009-10-01 Andrew Heap Solar Receivers with Internal Reflections and Flux-Limiting Patterns of Reflectivity
JP2011094820A (ja) * 2009-10-27 2011-05-12 Mitsubishi Heavy Ind Ltd 太陽光集光受熱システム
JP2011220557A (ja) * 2010-04-06 2011-11-04 Mitsubishi Heavy Ind Ltd 太陽熱受熱器

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