FR2659132A1 - Solar oven - Google Patents
Solar oven Download PDFInfo
- Publication number
- FR2659132A1 FR2659132A1 FR9002721A FR9002721A FR2659132A1 FR 2659132 A1 FR2659132 A1 FR 2659132A1 FR 9002721 A FR9002721 A FR 9002721A FR 9002721 A FR9002721 A FR 9002721A FR 2659132 A1 FR2659132 A1 FR 2659132A1
- Authority
- FR
- France
- Prior art keywords
- elements
- tubes
- solar oven
- box
- oven according
- 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.)
- Granted
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
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic 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
- F24S2023/87—Reflectors layout
- F24S2023/872—Assemblies of spaced reflective elements on common support, e.g. Fresnel 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
Abstract
Description
"Four solaire11. "Solar oven11.
L'invention concerne un four solaire comportant plusieurs éléments parallèles de forme générale demi-cylindrique à section de paraboloïde et à face interne réfléchissante, un tube de circulation d'un fluide caloporteur disposé longitudinalement à chaque élément au foyer des paraboles, four caractérisé en ce que les bords longitudinaux des divers éléments sont disposés dans un même plan, les tubes de ces éléments étant disposés sensiblement dans ce plan. The invention relates to a solar oven comprising several parallel elements of generally semi-cylindrical shape with paraboloid section and with reflecting internal face, a circulation tube for a heat-transfer fluid disposed longitudinally to each element in the focus of the parabolas, oven characterized in that that the longitudinal edges of the various elements are arranged in the same plane, the tubes of these elements being arranged substantially in this plane.
Suivant une autre caractéristique de l'invention, une plaque transparente est disposée à proximité immédiate au-dessus des tubes et des bords longitudinaux des éléments. According to another characteristic of the invention, a transparent plate is arranged in close proximity above the tubes and the longitudinal edges of the elements.
Suivant une autre caractéristique de l'invention, les éléments et les tubes sont disposés dans un caisson de faible profondeur dont la face supérieure est constituée par une plaque transparente. According to another characteristic of the invention, the elements and the tubes are arranged in a shallow box, the upper face of which is constituted by a transparent plate.
L'invention est représentée à titre d'exemple non limitatif sur les dessins ci-joints dans lesquels
- la figure 1 est une vue en perspective partielle et éclatée d'un four solaire conforme à llinvention,
- la figure 2 est une vue en coupe transversale suivant A-A de la figure 1,
- la figure 3 est une vue d'ensemble, en perspective, du four de la figure 1.The invention is shown by way of non-limiting example in the accompanying drawings in which
FIG. 1 is a partial and exploded perspective view of a solar oven according to the invention,
FIG. 2 is a cross-sectional view along AA of FIG. 1,
- Figure 3 is an overall perspective view of the oven of Figure 1.
La présente invention a en conséquence pour but la réalisation d'un four solaire d'un rendement calorifique élevé, de construction simple, robuste et d'une forme plane peu encombrante, dont la protection de la face supérieure est obtenue de manière simple à l'aide d'une plaque transparente telle qu'une glace et plus précisément un verre trempé. The present invention therefore aims to achieve a solar furnace with a high calorific efficiency, simple construction, robust and of a space-saving planar shape, the protection of the upper face of which is obtained in a simple manner. using a transparent plate such as a glass and more precisely a tempered glass.
Le dispositif représenté sur les dessins cijoints se compose d'éléments parallèles 1 de forme générale demi-cylindrique à section de paraboloïde, dont la face interne 11 est réfléchissante. Ces éléments sont par exemple réalisés en cuivre et la face interne est recouverte d'un revêtement de protection pour éviter son oxydation. Ce revêtement est par exemple constitué par un film d'une résine transparente ou par un dépôt d'une couche d'un métal inoxydable tel que de loir. The device shown in the accompanying drawings consists of parallel elements 1 of generally semi-cylindrical shape with paraboloid section, the internal face 11 of which is reflective. These elements are for example made of copper and the internal face is covered with a protective coating to prevent its oxidation. This coating is for example formed by a film of a transparent resin or by depositing a layer of a stainless metal such as dormouse.
Ces éléments 1 sont réalisés de manière que le foyer des paraboles 1 soit situé sensiblement dans le plan X-X contenant les bords 12 et 13 de chaque élément. These elements 1 are produced so that the focal point of the parabolas 1 is located substantially in the plane X-X containing the edges 12 and 13 of each element.
Ces dispositions permettent de placer des tubes 2 de circulation d'un fluide caloporteur au foyer de ces paraboles 1 de façon que ces tubes soient situés sensiblement dans le plan passant par les bords 12, 13, c'est-à-dire de façon qu ils soient situés dans l'encombrement général des éléments 1. These arrangements make it possible to place tubes 2 for circulation of a heat transfer fluid at the focus of these parabolas 1 so that these tubes are situated substantially in the plane passing through the edges 12, 13, that is to say so that they are located in the overall dimensions of the elements 1.
Ces dispositions permettent d'obtenir un rendement calorifique élevé et un encombrement faible. These arrangements make it possible to obtain a high calorific yield and a small bulk.
Ces tubes 2, disposés parallèlement les uns aux autres au foyer des divers éléments jouxtants 1, forment un réseau de tubes parallèles qui sont reliés à leurs deux extrémités par des tubes 21 22. Ces tubes sont, de préférence, réalisés en cuivre. These tubes 2, arranged parallel to each other at the focus of the various adjoining elements 1, form a network of parallel tubes which are connected at their two ends by tubes 21 22. These tubes are preferably made of copper.
Les éléments 1 et leur tube 2 sont disposés dans un caisson de faible profondeur 3, de préférence métallique, et sont supportés dans ce caisson par des cloisons 4 pourvues de découpes 41 correspondant en forme et dimensions à celles des sections paraboloïdes des éléments 1. The elements 1 and their tube 2 are arranged in a shallow box 3, preferably metallic, and are supported in this box by partitions 4 provided with cutouts 41 corresponding in shape and dimensions to those of the paraboloid sections of the elements 1.
Ces cloisons 4 maintiennent donc la forme et la position des éléments 1 afin qu'ils ne se déforment pas lors de manipulations ou lors des variations de température importantes qu'ils peuvent subir. These partitions 4 therefore maintain the shape and position of the elements 1 so that they do not deform during handling or during the significant temperature variations that they may undergo.
L'espace formé entre la face externe des éléments 1 et le fond du caisson est de préférence rempli d'un matériau isolant thermique et, par exemple, par de la laine de verre. The space formed between the external face of the elements 1 and the bottom of the box is preferably filled with a thermal insulating material and, for example, with glass wool.
La face supérieure du caisson 3 est fermée par une plaque à surface transparente 5 qui est située (voir notamment figure 2) à proximité immédiate du réseau parallèle de tubes 2 et des bords longitudinaux 12, 13 des éléments 1. The upper face of the box 3 is closed by a transparent surface plate 5 which is situated (see in particular FIG. 2) in the immediate vicinity of the parallel network of tubes 2 and the longitudinal edges 12, 13 of the elements 1.
Cette surface transparente 5 assure la protection des éléments internes du caisson 3 contre les salissures, peut être nettoyée rapidement et contribue également à la solidité de ltensemble du fait que cette plaque transparente 5 est fixée de préférence par collage au rebord du caisson 3. This transparent surface 5 ensures the protection of the internal elements of the box 3 against dirt, can be cleaned quickly and also contributes to the solidity of the assembly because this transparent plate 5 is preferably fixed by gluing to the edge of the box 3.
Le réseau des tubes 2 est positionné d'une manière quelconque, soit par rapport à la plaque transparente 5, soit par rapport aux éléments 1 ou encore par rapport au caisson 3. The network of tubes 2 is positioned in any way, either with respect to the transparent plate 5, or with respect to the elements 1 or again with respect to the box 3.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9002721A FR2659132B1 (en) | 1990-03-05 | 1990-03-05 | SOLAR OVEN. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9002721A FR2659132B1 (en) | 1990-03-05 | 1990-03-05 | SOLAR OVEN. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2659132A1 true FR2659132A1 (en) | 1991-09-06 |
FR2659132B1 FR2659132B1 (en) | 1996-03-22 |
Family
ID=9394366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9002721A Expired - Fee Related FR2659132B1 (en) | 1990-03-05 | 1990-03-05 | SOLAR OVEN. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2659132B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001002780A1 (en) * | 1999-07-05 | 2001-01-11 | Solel - Solar Systems Ltd. | Solar collector system |
FR2942303A1 (en) * | 2009-02-18 | 2010-08-20 | Ludovic Deblois | Solar concentrator, has solar collectors covered with transparent glass plate, and solar sensors fixed on transparent plate, where solar collectors, glass plate and solar sensors are moved around vertical rotational axle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2467885A (en) * | 1944-11-17 | 1949-04-19 | Walter J Kelly | Solar heater for heating liquids |
DE2735190A1 (en) * | 1976-08-06 | 1978-02-09 | Ellis K E Holdings Pty | Solar mirror reflector unit - uses glass with parallel grooves of parabolic cross-sections |
US4117831A (en) * | 1976-12-01 | 1978-10-03 | Manju Bansal | Energy collector for collecting solar energy and the like |
GB1541034A (en) * | 1976-02-27 | 1979-02-21 | Bloomfield E | Solar energy collectors |
US4313426A (en) * | 1978-03-13 | 1982-02-02 | Niedermeyer William P | Solar energy collector |
-
1990
- 1990-03-05 FR FR9002721A patent/FR2659132B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2467885A (en) * | 1944-11-17 | 1949-04-19 | Walter J Kelly | Solar heater for heating liquids |
GB1541034A (en) * | 1976-02-27 | 1979-02-21 | Bloomfield E | Solar energy collectors |
DE2735190A1 (en) * | 1976-08-06 | 1978-02-09 | Ellis K E Holdings Pty | Solar mirror reflector unit - uses glass with parallel grooves of parabolic cross-sections |
US4117831A (en) * | 1976-12-01 | 1978-10-03 | Manju Bansal | Energy collector for collecting solar energy and the like |
US4313426A (en) * | 1978-03-13 | 1982-02-02 | Niedermeyer William P | Solar energy collector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001002780A1 (en) * | 1999-07-05 | 2001-01-11 | Solel - Solar Systems Ltd. | Solar collector system |
FR2942303A1 (en) * | 2009-02-18 | 2010-08-20 | Ludovic Deblois | Solar concentrator, has solar collectors covered with transparent glass plate, and solar sensors fixed on transparent plate, where solar collectors, glass plate and solar sensors are moved around vertical rotational axle |
Also Published As
Publication number | Publication date |
---|---|
FR2659132B1 (en) | 1996-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20051130 |