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WO1995012791A1 - Device for heating by utilizing solar energy - Google Patents

Device for heating by utilizing solar energy Download PDF

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Publication number
WO1995012791A1
WO1995012791A1 PCT/SE1994/000992 SE9400992W WO9512791A1 WO 1995012791 A1 WO1995012791 A1 WO 1995012791A1 SE 9400992 W SE9400992 W SE 9400992W WO 9512791 A1 WO9512791 A1 WO 9512791A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat storage
stand
storage body
reflector
pole
Prior art date
Application number
PCT/SE1994/000992
Other languages
French (fr)
Inventor
Vilho Eriksson
Original Assignee
Vilho Eriksson
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 Vilho Eriksson filed Critical Vilho Eriksson
Priority to AU81187/94A priority Critical patent/AU8118794A/en
Publication of WO1995012791A1 publication Critical patent/WO1995012791A1/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
    • F24S23/77—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates
    • 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
    • F24S20/30—Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
    • 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
    • F24S23/75—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with conical reflective surfaces
    • 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
    • F24S23/81—Arrangements for concentrating solar-rays for solar heat collectors with reflectors flexible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • 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
    • 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
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • Y02B40/18—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers using renewables, e.g. solar cooking stoves, furnaces or solar heating
    • 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
    • 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

Definitions

  • the invention relates to a heating apparatus utilizing solar energy, said apparatus comprising a stand and a device sup- " ported by said stand for concentrating the rays of the sun and directing them to a predetermined limited area.
  • Heating apparati utilizing solar energy are previously known in different forms. There is, however, a great need for such an apparatus which is simple and inexpensive as well as being easily assembled, so that it can be used for heating, e.g. for ⁇ ooking purposes, in any location where the user happens to be.
  • the purpose of the present invention is to achieve an appara ⁇ tus of the type described by way of introduction which ful- fills the above described needs and also has additional advantages.
  • Fig 1 is a schematic perspective view of an apparatus according to a first embodiment of the invention
  • Fig 2 shows a schematic vertical section through the apparatus according to Fig 1
  • Fig 3 is a schematic perspective view of an apparatus according to a second embodiment of the invention
  • Fig 4 shows a schematic section through the apparatus according to Fig 3.
  • Fig 1 shows an apparatus according to a first embodiment of the invention.
  • the apparatus is made of three main compo ⁇ nents, viz. a stand 1, a reflector 2 and a heat storage means 3.
  • the stand 1 is of simple construction and consists essenti ⁇ ally of a pole 4, which is provided at its lower end with a support means 5 (see Figure 2) , which are intended to rest on the ground or be pushed into the ground to support the stand 1 in the desired direction relative to the sun.
  • the pole 4 supports the heat storage means 3, which comprise a heat storage body 6, which is removably mounted on the pole 4.
  • the heat storage body 6 is made of a material with good heat storage capacity, e.g. cast iron or the like.
  • the reflector 2 shown in Figs 1 and 2 is made of one or more panels 7 of plastics material.
  • the panels 7, of which only one is shown in Fig 1, are made of a relatively thin plastics material, suitably with a thickness of 1-2 mm. This plastics material is pressed in a specially designed tool to achieve the form which is shown schematically in the drawing.
  • each panel 7 is provided with a large number of arcuate grooves 8 with their common center essentially at the pole 4.
  • the grooves 8 are individually made so that incident sunlight will be reflected towards an essentially common focus, which is located in the vicinity of the underside of the heat storage body 6, as will be described in more detail below.
  • Each panel 7 is also coated on its topside with a thin layer of aluminum or another reflecting material.
  • This coating can be done with the aid of known processes, used in the packa ⁇ ging industry for example. These processes can achieve a mirror surface which reflects essentially 100% of the incom- ing sunlight.
  • the grooves 8 in each panel 7 are made so that the rays of the sun are reflected to a focus in the vicinity of the underside of the heat storage body 6 . The temperature at the focus can become so high when the apparatus is used that it can damage the heat storage body 6.
  • the grooves 8 in the panels 7 are suitably made so that the reflected rays strike the heat storage body 6 over a surface which is of limited size.
  • the pole 4 can also have such dimensions that the distance between the panels 7 and the heat storage body 6 is approximately twice as long as the side of one of the square panels 7. This provides a design where the individual grooves 8 in each panel 7 will throw as small a shadow as possible.
  • Fig 2 shows fastening means for fixing the panels 7 to the pole .
  • These fastening means can be made in various manners and the intention is that the panel 7 is to be detachably clamped to the pole 4.
  • Fig 1 shows as well holder means 10 for the panels 7.
  • These holder means 10 consist of some type of clamping molding to keep the panels 7 flat and correctly oriented relative to the pole 4.
  • the holder means 10 are joined together by means of corner pieces 11 and connecting pieces 12, which can be made in a known manner.
  • an insulating cover 13 This is made so that it covers the heat storage body 6 on all sides except the underside.
  • the insulating cover 13 is made of a material with very good insulation properties, e.g. cellular plastic or the like. This means that the heat radiated from the heat storage body 6 will be as small as possible, so that the temperature of the heat storage body 6 can be raised very rapidly when the apparatus is used.
  • Figs 3 and 4 show a second embodiment of the apparatus according to the invention.
  • a stand 14 which has a pole 15 which can be pressed down into the ground, so that the apparatus is kept in a predetermined position.
  • the stand 14 also comprises an adjustment device 16 on which a pole 4a, corresponding to the pole 4 in the embodiment according to Fig 1, is mounted.
  • the pole 4a supports in turn a heat storage body 6a at its distal end.
  • a reflector 2a is fixed to the adjustment means 16 and consists of a plurality of panels 7a, which form together a cone.
  • Each panel 7a is provided, as were the panels 7 in the embodiment shown in Figs 1 and 2, with a large number of grooves 8a, making it possible to reflect incident rays of the sun towards a focus which is located in the same manner relative to the heat storage body 6a as in the embodiment according to Figs 1 and 2.
  • the adjustment means 16 make it possible to direct the reflector 2a in a suitable manner relative to the sun.
  • the heat storage body 6a can be provided with an insulation cover corresponding to the insulation cover 13 in the embodiment shown in Figs 1 and 2.
  • the panels 7a are placed in holder means 10a in a manner corresponding to that described above in connection with the embodiment shown in Figs 1 and 2.
  • the holder means 10a are connected to the pole 4a or to the adjustment means 16.
  • the panels 7a and the holder means 10a form together a cone for effective reflection of incident sunlight and concentration of the radiation to the underside of the heat storage body 6a.
  • the design of the reflector 2a as a cone makes it possible to utilize the incident solar energy even more effectively.
  • By properly selecting the cone angle and the length of the pole 4a it is possible to reduce the number of grooves, at least in the outer portion. Thus, the formation of shadows will be less and the efficiency will be increased.
  • the panels 7 or 7a in the apparatus according to the invention are made with a large number of grooves to reflect the sunlight and concentrate it to the underside of the heat storage body 6 or 6a.
  • the panels 7 or 7a are made as the counterparts to so-called Fresnel lenses. This makes it possible to make the panels 7 or 7a in thin material which is flexible in order to be able to be rolled up when the apparatus is not being used.
  • the apparatus according to the invention is primarily intended to be used for cooking, and for this purpose, the heated heat storage body 6 or 6a is removed from the apparatus and placed on a supporting surface of some type. Thereafter, a cooking vessel can be placed on the heat storage body 6 or 6a for cooking purposes. It is also possible to use the heat storage body 6 or 6a at a later point in time, and in this case the heat storage body should be kept in a very well insulated box or the like in order to minimize heat loss.

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)

Abstract

The invention relates to a heating apparatus utilizing solar energy. The apparatus comprises a stand (1) and a device (2) carried by the stand for concentrating the rays of the sun and directing them to a predetermined, limited area. The device (2) for concentrating and directing the rays of the sun comprises at least one reflector panel (7), which is joined to the stand (1). A heat storage body (6) is removably joined to the stand (1) at a predetermined position, so that at least a portion of the heat storage body (6) is within the predetermined, limited area.

Description

Device for heating by utilizing solar energy.
The invention relates to a heating apparatus utilizing solar energy, said apparatus comprising a stand and a device sup-" ported by said stand for concentrating the rays of the sun and directing them to a predetermined limited area.
Heating apparati utilizing solar energy are previously known in different forms. There is, however, a great need for such an apparatus which is simple and inexpensive as well as being easily assembled, so that it can be used for heating, e.g. for ςooking purposes, in any location where the user happens to be.
The purpose of the present invention is to achieve an appara¬ tus of the type described by way of introduction which ful- fills the above described needs and also has additional advantages.
This is achieved by an apparatus which has those features disclosed in the characterizing clause of the accompanying claim 1.
Advantageous embodiments of the invention are disclosed in the subclaims.
The invention will be described in more detail below with reference to the accompanying drawings, which show as examples two embodiments of the apparatus according to the invention and in which,
Fig 1 is a schematic perspective view of an apparatus according to a first embodiment of the invention, Fig 2 shows a schematic vertical section through the apparatus according to Fig 1, Fig 3 is a schematic perspective view of an apparatus according to a second embodiment of the invention, and
Fig 4 shows a schematic section through the apparatus according to Fig 3. Fig 1 shows an apparatus according to a first embodiment of the invention. The apparatus is made of three main compo¬ nents, viz. a stand 1, a reflector 2 and a heat storage means 3.
The stand 1 is of simple construction and consists essenti¬ ally of a pole 4, which is provided at its lower end with a support means 5 (see Figure 2) , which are intended to rest on the ground or be pushed into the ground to support the stand 1 in the desired direction relative to the sun. At its upper end, the pole 4 supports the heat storage means 3, which comprise a heat storage body 6, which is removably mounted on the pole 4. The heat storage body 6 is made of a material with good heat storage capacity, e.g. cast iron or the like.
The reflector 2 shown in Figs 1 and 2 is made of one or more panels 7 of plastics material. The panels 7, of which only one is shown in Fig 1, are made of a relatively thin plastics material, suitably with a thickness of 1-2 mm. This plastics material is pressed in a specially designed tool to achieve the form which is shown schematically in the drawing. This means that each panel 7 is provided with a large number of arcuate grooves 8 with their common center essentially at the pole 4. The grooves 8 are individually made so that incident sunlight will be reflected towards an essentially common focus, which is located in the vicinity of the underside of the heat storage body 6, as will be described in more detail below.
Each panel 7 is also coated on its topside with a thin layer of aluminum or another reflecting material. This coating can be done with the aid of known processes, used in the packa¬ ging industry for example. These processes can achieve a mirror surface which reflects essentially 100% of the incom- ing sunlight. In this manner it is also possible to make a very inexpensive panel 7, which can also be rolled together so as to take very little space and be easily protected against damage when it is not being used. The grooves 8 in each panel 7 are made so that the rays of the sun are reflected to a focus in the vicinity of the underside of the heat storage body 6 . The temperature at the focus can become so high when the apparatus is used that it can damage the heat storage body 6. In order to avoid this, the grooves 8 in the panels 7 are suitably made so that the reflected rays strike the heat storage body 6 over a surface which is of limited size. The pole 4 can also have such dimensions that the distance between the panels 7 and the heat storage body 6 is approximately twice as long as the side of one of the square panels 7. This provides a design where the individual grooves 8 in each panel 7 will throw as small a shadow as possible.
Fig 2 shows fastening means for fixing the panels 7 to the pole . These fastening means can be made in various manners and the intention is that the panel 7 is to be detachably clamped to the pole 4. Fig 1 shows as well holder means 10 for the panels 7. These holder means 10 consist of some type of clamping molding to keep the panels 7 flat and correctly oriented relative to the pole 4. The holder means 10 are joined together by means of corner pieces 11 and connecting pieces 12, which can be made in a known manner.
In order to avoid too much heat dissipation from the heat storage body 6, it is covered with an insulating cover 13. This is made so that it covers the heat storage body 6 on all sides except the underside. The insulating cover 13 is made of a material with very good insulation properties, e.g. cellular plastic or the like. This means that the heat radiated from the heat storage body 6 will be as small as possible, so that the temperature of the heat storage body 6 can be raised very rapidly when the apparatus is used.
Figs 3 and 4 show a second embodiment of the apparatus according to the invention. In this embodiment there is a stand 14, which has a pole 15 which can be pressed down into the ground, so that the apparatus is kept in a predetermined position. The stand 14 also comprises an adjustment device 16 on which a pole 4a, corresponding to the pole 4 in the embodiment according to Fig 1, is mounted. The pole 4a supports in turn a heat storage body 6a at its distal end.
A reflector 2a is fixed to the adjustment means 16 and consists of a plurality of panels 7a, which form together a cone. Each panel 7a is provided, as were the panels 7 in the embodiment shown in Figs 1 and 2, with a large number of grooves 8a, making it possible to reflect incident rays of the sun towards a focus which is located in the same manner relative to the heat storage body 6a as in the embodiment according to Figs 1 and 2.
The adjustment means 16 make it possible to direct the reflector 2a in a suitable manner relative to the sun.
In this embodiment as well, the heat storage body 6a can be provided with an insulation cover corresponding to the insulation cover 13 in the embodiment shown in Figs 1 and 2.
The panels 7a are placed in holder means 10a in a manner corresponding to that described above in connection with the embodiment shown in Figs 1 and 2. The holder means 10a are connected to the pole 4a or to the adjustment means 16. The panels 7a and the holder means 10a form together a cone for effective reflection of incident sunlight and concentration of the radiation to the underside of the heat storage body 6a. It should also be pointed out in this context that the design of the reflector 2a as a cone makes it possible to utilize the incident solar energy even more effectively. By properly selecting the cone angle and the length of the pole 4a, it is possible to reduce the number of grooves, at least in the outer portion. Thus, the formation of shadows will be less and the efficiency will be increased.
As mentioned above, the panels 7 or 7a in the apparatus according to the invention are made with a large number of grooves to reflect the sunlight and concentrate it to the underside of the heat storage body 6 or 6a. This means that the panels 7 or 7a are made as the counterparts to so-called Fresnel lenses. This makes it possible to make the panels 7 or 7a in thin material which is flexible in order to be able to be rolled up when the apparatus is not being used.
The apparatus according to the invention is primarily intended to be used for cooking, and for this purpose, the heated heat storage body 6 or 6a is removed from the apparatus and placed on a supporting surface of some type. Thereafter, a cooking vessel can be placed on the heat storage body 6 or 6a for cooking purposes. It is also possible to use the heat storage body 6 or 6a at a later point in time, and in this case the heat storage body should be kept in a very well insulated box or the like in order to minimize heat loss.
The invention is of course not limited to the above described embodiments, rather changes can be made within the scope of the following claims.

Claims

Claims
1. Heating apparatus utilizing solar energy, said apparatus comprising a stand (1,14) and a device (2,2a) , supported by said stand for concentrating the rays of the sun and direct¬ ing them to a predetermined limited area, characterized in that said device (2,2a) for concentrating and directing the rays of the sun comprises at least one reflector panel (7,7a) which is joined to the stand (1,14) and that a heat storage body (6,6a) is removably connected to the stand (1,14) in a predetermined position, so that at least a portion of the heat storage body (6,6a) is within the predetermined area.
2. Apparatus according to Claim 1, characterized in that the stand (1,14) comprises a pole (4,4a), which is designed at one end to be fixed to the ground or other subsurface and is provided at its other end with a holder for the heat storage body (6,6a) , said pole (4,4a) being provided with fastening means (9,16) for the reflector or the reflectors (2,2a) .
3. Apparatus according to Claim 1 or 2, characterized in that the heat storage body (6,6a) is provided with a removable insulating cover (13) .
4. Apparatus according to one of Claims 1 - 3, characterized in that the reflector or reflectors (2,2a) is/are essentially flat and made as Fresnel-reflectors.
5. Apparatus according to one of Claims 1 - 3, characterized in that the reflector or reflectors (2,2a) form(s) a conical surface and is/are made as (a) Fresnel-reflector(ε) .
PCT/SE1994/000992 1993-11-03 1994-10-20 Device for heating by utilizing solar energy WO1995012791A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU81187/94A AU8118794A (en) 1993-11-03 1994-10-20 Device for heating by utilizing solar energy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9303631A SE9303631L (en) 1993-11-03 1993-11-03 Apparatus for heating with the use of solar energy
SE9303631-7 1993-11-03

Publications (1)

Publication Number Publication Date
WO1995012791A1 true WO1995012791A1 (en) 1995-05-11

Family

ID=20391632

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000992 WO1995012791A1 (en) 1993-11-03 1994-10-20 Device for heating by utilizing solar energy

Country Status (3)

Country Link
AU (1) AU8118794A (en)
SE (1) SE9303631L (en)
WO (1) WO1995012791A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013565A3 (en) * 2000-06-20 2002-04-02 Suria Holdings Sarl Device for using solar energy
JP2002115917A (en) * 2000-10-12 2002-04-19 Kokusai Gijutsu Kaihatsu Co Ltd Solar heat energy collector
WO2016169888A1 (en) * 2015-04-18 2016-10-27 Reinhard Kühling Solar installation, heat reservoir, and a method for generating power
DE102016225931A1 (en) * 2016-12-21 2018-06-21 Karl Wohllaib Gmbh Solar cooking device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909171A (en) * 1955-08-01 1959-10-20 George O G Lof Solar cooker
FR1506575A (en) * 1966-11-10 1967-12-22 Solar cooker
FR2588644A1 (en) * 1985-10-11 1987-04-17 Roger Bernard Solar cooker having improved convenience
US4800868A (en) * 1978-02-22 1989-01-31 Minnesota Mining And Manufacturing Company Tilted panel linear echelon solar collector
DE3929537A1 (en) * 1989-09-06 1991-03-28 Gerhard Sitzer Heat ray reflector for solar cooker - consists of number of flexible discs perforated around edge to form parabola
DE4142119A1 (en) * 1991-12-20 1993-06-24 Klemens Prof Dr Schwarzer Solar cooker with collector for heating medium - has hand regulator and storage together with several hobs to which there is controlled medium supply

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909171A (en) * 1955-08-01 1959-10-20 George O G Lof Solar cooker
FR1506575A (en) * 1966-11-10 1967-12-22 Solar cooker
US4800868A (en) * 1978-02-22 1989-01-31 Minnesota Mining And Manufacturing Company Tilted panel linear echelon solar collector
FR2588644A1 (en) * 1985-10-11 1987-04-17 Roger Bernard Solar cooker having improved convenience
DE3929537A1 (en) * 1989-09-06 1991-03-28 Gerhard Sitzer Heat ray reflector for solar cooker - consists of number of flexible discs perforated around edge to form parabola
DE4142119A1 (en) * 1991-12-20 1993-06-24 Klemens Prof Dr Schwarzer Solar cooker with collector for heating medium - has hand regulator and storage together with several hobs to which there is controlled medium supply

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013565A3 (en) * 2000-06-20 2002-04-02 Suria Holdings Sarl Device for using solar energy
JP2002115917A (en) * 2000-10-12 2002-04-19 Kokusai Gijutsu Kaihatsu Co Ltd Solar heat energy collector
WO2016169888A1 (en) * 2015-04-18 2016-10-27 Reinhard Kühling Solar installation, heat reservoir, and a method for generating power
DE102016225931A1 (en) * 2016-12-21 2018-06-21 Karl Wohllaib Gmbh Solar cooking device
DE102016225931B4 (en) * 2016-12-21 2019-11-07 Karl Wohllaib Gmbh Solar cooking device

Also Published As

Publication number Publication date
AU8118794A (en) 1995-05-23
SE9303631L (en) 1995-05-04
SE9303631D0 (en) 1993-11-03

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