DE29700839U1 - Solar cooker - Google Patents
Solar cookerInfo
- Publication number
- DE29700839U1 DE29700839U1 DE29700839U DE29700839U DE29700839U1 DE 29700839 U1 DE29700839 U1 DE 29700839U1 DE 29700839 U DE29700839 U DE 29700839U DE 29700839 U DE29700839 U DE 29700839U DE 29700839 U1 DE29700839 U1 DE 29700839U1
- Authority
- DE
- Germany
- Prior art keywords
- mirror
- magnifying glass
- focus location
- consumer
- focal spot
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 claims description 16
- 238000010411 cooking Methods 0.000 claims description 6
- 230000004313 glare Effects 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 206010052128 Glare Diseases 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
- F24S23/31—Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses
-
- 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
-
- 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
- F24S2030/10—Special components
- F24S2030/13—Transmissions
- F24S2030/133—Transmissions in the form of flexible elements, e.g. belts, chains, ropes
-
- 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
- Y02E10/47—Mountings or tracking
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)
- Color Image Communication Systems (AREA)
Description
Andreas Wem .I.*..* *..* ·&idigr;· ··' * Andreas Wem .I.*..* *..* ·&idigr;· ··' *
Hauptstr. 43 gHauptstr. 43 g
79689 Maulburg Maulburg, den 16.1.9779689 Maulburg Maulburg, 16.1.97
SolarkocherSolar cooker
Beschreibung:Description:
Die Erfindung betrifft einen alternativen Typ von Solarkochern. Solarkocher sind Vorrichtungen zur Nutzung der Solarthermie, die Sonnenlicht in 'konzentrierte Wärme' umwandeln. Es gibt Boxkocher, bei denen die Sonnenstrahlung über eine Glas- oder Folienabdeckung in den lichtabsorbierenden Kochraum fällt, Reflektionskocher, die mit einem Parabol- bzw. Hohlspiegel aus Glas oder Reflektorfolie die Strahlung unter einem Topf konzentrieren und Kollektorkocher, bei denen an Strahlungsabsorbierenden Kanälen ein Wärmeträger aufgeheizt wird, der die Wärme an das Kochgut abgibt. Box- und Kollektorkocher eignen sich zum Garen oder Backen, Reflektorkocher zum Kochen, Backen und Braten. Die Nettowirkungsgrade von Reflektorkochern liegen mit über 50% am höchsten [Staatsinstitut fur Schulpädagogik und Bildungsforschung München 12/92, Modellversuch Umwelterziehung "Wir kochen mit der Sonne"]. Weitere Anwendungen von Solarkochern sind Trinkwasseraufbereitung, Destillation von Wasser, Trocknung u gewerbliche Nutzung in Färbereien, aber auch Kraft- oder Stromerzeugung mittels Parabolstirlingmotor oder Kühlen über Zeolithentwässerung [Stefan Zech: Kühlschrank mit solarem Antrieb, FH München 1995].The invention relates to an alternative type of solar cooker. Solar cookers are devices for using solar thermal energy that convert sunlight into 'concentrated heat'. There are box cookers in which the sun's radiation falls through a glass or foil cover into the light-absorbing cooking chamber, reflection cookers that concentrate the radiation under a pot using a parabolic or concave mirror made of glass or reflector foil, and collector cookers in which a heat carrier is heated up in radiation-absorbing channels and gives off the heat to the food being cooked. Box and collector cookers are suitable for cooking or baking, reflector cookers for cooking, baking and frying. The net efficiency of reflector cookers is the highest at over 50% [Staatsinstitut für Schulpädagogik und Bildungsforschung München 12/92, pilot project on environmental education "We cook with the sun"]. Other applications of solar cookers are drinking water treatment, distillation of water, drying and commercial use in dyeing works, but also power or electricity generation by means of parabolic Stirling engines or cooling via zeolite dehydration [Stefan Zech: Refrigerator with solar drive, FH Munich 1995].
Nachteile vieler Kocher (insbesondere des Hohlspiegelkochers) sind die aufwendige Konstruktion und Herstellung, hohes Gewicht, Empfindlichkeit gegen Beschädigung, Instabilität und Sensibilität, Blendungsgefahr, hoher Justier- und Reinigungsaufwand, großer Platzbedarf und die schlechte Zerlegbarkeit.Disadvantages of many cookers (especially the concave mirror cooker) are the complex design and manufacture, high weight, susceptibility to damage, instability and sensitivity, risk of glare, high adjustment and cleaning effort, large space requirements and the difficulty in dismantling.
Der in Fig. 1 vorgestellte Kocher ist modular aufgebaut und besteht im wesentlichen aus einem Lupen/Spiegelsystem und einem Trägergestell. Er verwendet eine brennfleckerzeugende Fresnellinse, dessen Strahlenkegel von einem Flachspiegel umgelenkt wird. Sammelnde Fresnellinsen finden Verwendung in Leuchttürmen, Overheadprojektoren und Brillenoptik, als Kondensatoren, Brenngläser, Leselupen u.s.w.. Ein V-förmiger, öffnungsvariabler Bügel 1 nimmt mit seinen verlängerbaren Schenkelenden 2 eine Fresnellupe 3 auf und bringt mit dem anderen Ende einen Flachspiegel 4 schrägwinklig in den Strahlengang ein. Die Entfernung des Spiegels von der Lupe kann durch die Schenkelenden verstellt werden. Die Strahlumlenkung kann durch den kippbeweglichen Spiegelhalter 5 und der Einstellschraube 6 ebenfalls variiert werden. Dieses Lupen/Spiegelsystem ist in die Schlitze des Trägergestells 7,8 drehbar eingehängt. Die Drehachse zwischen den Schenkeln 8 des Trägergestells ist gleichzeitig als Absorberhalter 9 ausgebildet und liegt im Brennfleck des umgelenkten Strahlenkegels. Die Schenkel 10 halten den V-Bügel 1 vom Drehpunkt auf eine Distanz, die stufenweise verändert werden kann. Eine Seilwinde bestehend aus Kurbelachse 11, Drehknopf 12, Seil 13, Umlenkrolle 14 und einer Reibvorrichtung 15 stellt das Lupen/Spiegelsystem dem vertikalen Sonnenstand nach. Der Azimut wird durch Bewegen des Trägergestells auf dem Boden nachgefahren. Ein zusätzlicher Spiegel 16, der über einen biegeweichen Draht 17 mitThe cooker shown in Fig. 1 is modular and essentially consists of a magnifying glass/mirror system and a support frame. It uses a Fresnel lens that creates a focal spot, the beam cone of which is deflected by a flat mirror. Collecting Fresnel lenses are used in lighthouses, overhead projectors and spectacle optics, as condensers, burning glasses, reading magnifiers, etc. A V-shaped, variable-aperture bracket 1 holds a Fresnel magnifying glass 3 with its extendable leg ends 2 and with the other end brings a flat mirror 4 into the beam path at an oblique angle. The distance of the mirror from the magnifying glass can be adjusted using the leg ends. The beam deflection can also be varied using the tiltable mirror holder 5 and the adjusting screw 6. This magnifying glass/mirror system is rotatably mounted in the slots of the support frame 7, 8. The axis of rotation between the legs 8 of the support frame is also designed as an absorber holder 9 and is located in the focal point of the deflected beam cone. The legs 10 hold the V-bracket 1 from the pivot point at a distance that can be changed in stages. A cable winch consisting of a crank axle 11, rotary knob 12, cable 13, deflection pulley 14 and a friction device 15 adjusts the magnifying glass/mirror system to the vertical position of the sun. The azimuth is adjusted by moving the support frame on the ground. An additional mirror 16, which is connected to the
Andreas Wem .&iacgr;. *..* *..* ·&idigr;· ··* ' Andreas Wem .&iacgr;. *..* *..* ·&idigr;· ··* '
Hauptstr. 43gMain Street 43g
79689 Maulburg Maulburg, den 16.1.9779689 Maulburg Maulburg, 16.1.97
(Fortsetzung Beschreibung Solarkocher)(Continued description of solar cooker)
dem Trägergestell 8 verbunden ist, beleuchtet das Kochgut bzw .den Verbraucher !8 und ist gleichzeitig Blendschutz.connected to the support frame 8, illuminates the food being cooked or the consumer !8 and at the same time provides glare protection.
Vorteile des Lupenkochers sind die leichte, preiswerte und robuste Fresnellinse aus Kunststoffolie sowie ihre Verfügbarkeit in verschiedenen Größen und Brennweiten. Das Kochergestell und die Linse besitzen eine gute Brennfleckstabilität. Der Lupenkocher kann stufenlos vertikal und horizontal dem Sonnenstand nachgefüllt werden. Es sind weiterhin eine stufenlose Brennfleckdurchmesseränderung und durch die Verwendung verschiedener Lupengrößen auch verschiedene Kochleistungen möglich. Weitere Vorteile sind die verstellbare Strahlkegelumlenkung, einfache und schnelle Zerlegbarkeit, geringer Pflegeaufwand, hohe Standsicherheit und eine gute Blendschutz- und Beleuchtungsmöglichkeit der Heizstelle. In den Absorberhalter 9 können verschiedene Verbraucher, z.B. ein Kochtopf, Zeolithpatronen, ein Stirlingmotor, Brenn- und Schmelzmaterial u. s. w. eingebracht werden. Die Vorrichtung eignet sich damit sehr gut für Ausstellungs- oder Schulungszwecke im Bereich Technik, Optik, Solartechnik und entsprechend der Dimensionierung sowohl als Spielzeug als auch für echte Nutzanwendungen.The advantages of the magnifying glass cooker are the light, inexpensive and robust Fresnel lens made of plastic film and its availability in various sizes and focal lengths. The cooker frame and the lens have good focal spot stability. The magnifying glass cooker can be refilled continuously vertically and horizontally according to the position of the sun. Furthermore, a continuous change in the focal spot diameter is possible and by using different magnifying glass sizes, different cooking performances are also possible. Further advantages are the adjustable beam cone deflection, simple and quick dismantling, low maintenance, high stability and good glare protection and lighting options for the heating point. Various consumers, e.g. a cooking pot, zeolite cartridges, a Stirling engine, fuel and melting material, etc. can be placed in the absorber holder 9. The device is therefore very suitable for exhibition or training purposes in the field of technology, optics, solar technology and, depending on the dimensions, both as a toy and for real practical applications.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29700839U DE29700839U1 (en) | 1997-01-18 | 1997-01-18 | Solar cooker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29700839U DE29700839U1 (en) | 1997-01-18 | 1997-01-18 | Solar cooker |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29700839U1 true DE29700839U1 (en) | 1997-03-13 |
Family
ID=8034743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29700839U Expired - Lifetime DE29700839U1 (en) | 1997-01-18 | 1997-01-18 | Solar cooker |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE29700839U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105276826A (en) * | 2014-07-10 | 2016-01-27 | 宋向东 | High temperature solar thermal power metal conduction system |
-
1997
- 1997-01-18 DE DE29700839U patent/DE29700839U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105276826A (en) * | 2014-07-10 | 2016-01-27 | 宋向东 | High temperature solar thermal power metal conduction system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 19970424 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20001101 |