FR2542071A2 - Elemental solar collector under vacuum - Google Patents

Elemental solar collector under vacuum Download PDF

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Publication number
FR2542071A2
FR2542071A2 FR8221383A FR8221383A FR2542071A2 FR 2542071 A2 FR2542071 A2 FR 2542071A2 FR 8221383 A FR8221383 A FR 8221383A FR 8221383 A FR8221383 A FR 8221383A FR 2542071 A2 FR2542071 A2 FR 2542071A2
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France
Prior art keywords
under vacuum
heat
tube
solar collector
collector
Prior art date
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Granted
Application number
FR8221383A
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French (fr)
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FR2542071B2 (en
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SANSONETTI DOMINIQUE
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SANSONETTI DOMINIQUE
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Publication date
Priority claimed from FR8215627A external-priority patent/FR2533019B1/en
Application filed by SANSONETTI DOMINIQUE filed Critical SANSONETTI DOMINIQUE
Priority to FR828221383A priority Critical patent/FR2542071B2/en
Publication of FR2542071A2 publication Critical patent/FR2542071A2/en
Application granted granted Critical
Publication of FR2542071B2 publication Critical patent/FR2542071B2/en
Expired legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/40Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

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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)
  • Photovoltaic Devices (AREA)

Abstract

The present invention relates to equipment under vacuum which collect solar energy and make it possible to heat at will a heat-exchanging fluid. It is characterised essentially by resistance to thermal shocks whatever the temperature reached by the apparatus, and its conditions of use. To this end, the apparatus comprises, inside a cylindrical double jacket 1-4 made of glass which delimits an annular space under vacuum, an absorbing/heat exchanging assembly 8-9 made of metal plates and tubes which are fitted together without welding, without any direct contact with the jacket, from which it is separated at the same time by a volume of air 10 and calculated insulating end sleeves 11 and 12. Anti-radiating coverings 14, 15, 16, 17 are arranged inside, and possibly outside, the volume under vacuum as well as on the absorber. Among the major applications of the invention is the production, during sunny times, of steam and of hot water for sanitary use or for domestic heating, whatever the season and the region of the globe concerned.

Description

COLLECTEUR SOLAIRE ELEMENTAIRE SOUS VIDE
La présente addition se rapporte au collecteur solaire élementaire sous vide, et au procédé de fabrication afférent,décrits dans la demande de brevet français déposée le 14 Septembre 1982 sous le N" 82 15 627, concernant les capteurs plans ou à concentration équipés de tels collecteurs solaires.
ELEMENTAL VACUUM SOLAR COLLECTOR
The present addition relates to the elementary vacuum solar collector, and to the related manufacturing process, described in the French patent application filed on September 14, 1982 under No. 82 15 627, relating to flat or concentrated collectors equipped with such collectors. solar.

Suivant l'objet même du brevet principal, l'ensemble des dispositions caractérisant l'invention, confère à ce collecteur élémentaire,une exceptionnelle résistance aux chocs thermiques,quelles que soient la température atteinte par l'appareil et ses conditions d'utilisation,ainsi qu'une très grande simplicité de fabrication et d'entretien. According to the very object of the main patent, all of the provisions characterizing the invention give this elementary collector exceptional resistance to thermal shock, whatever the temperature reached by the device and its conditions of use, as well a very simple manufacturing and maintenance.

Ces dispositions caractérisantes sont,en résumé,les suivantes:
-Le collecteur solaire élémentaire sous vide comprend, à l'intérieur 7 d'une double enveloppe I - 4 cylindrique en verre,délimitant elle même un espace annulaire sous vide 5, un ensemble 8 - 9 absorbeur-caloporteur. Celui-ci est composé de plaquettes et de tubes métalliques incorrodablesemboités sans soudures. Il n'a aucun contact direct avec l'enveloppe de verre
I - 4, dont il est séparé à la fois par un volume d'air 10, amortisseur thermique, et par des manchons d'extrémité Il - 12 isolants. Ces derniers, souples et résistants à la chaleur,ont des dimensions XI et X2 calculées. Ils sont pourvus d'orifices de décompression 13 et 19 et d'un anneau d'assemblage 18. Des revêtements sélectifs 14 - 15 - 16 - 17 sont disposés à l'extérieur du volume sous vide 5 et sur l'absorbeur 8.
These characterizing provisions are, in summary, the following:
The elementary vacuum solar collector comprises, inside 7 of a double cylindrical envelope I - 4 of glass, delimiting itself an annular space under vacuum 5, a set 8 - 9 absorber-coolant. It is made up of non-corrodable metal plates and tubes fitted together without welding. It has no direct contact with the glass envelope
I - 4, from which it is separated both by an air volume 10, thermal shock absorber, and by end sleeves II - 12 insulators. The latter, flexible and heat resistant, have dimensions XI and X2 calculated. They are provided with decompression orifices 13 and 19 and with an assembly ring 18. Selective coatings 14 - 15 - 16 - 17 are placed outside the vacuum volume 5 and on the absorber 8.

Pour plus de précisions, on pourra se référer à la description détaillée et aux revendications exposées dans le brevet principal. For more details, reference may be made to the detailed description and to the claims set out in the main patent.

La présente addition a pour unique objet de revenir sur les dispositions concernant l'emplacement et le nombre des revêtements sur verre, sélectifs et anti-rayonnants infra-rouges, 14 - 15 - 16 - 17
L'étude de rendement théorique du collecteur solaire, montre en effet qu'il est nécessaire de disposer les revêtements sur verre précédents, à 1 'intérieur du volume sous vide(plutt qu'à l'extérieur.
The sole purpose of this addition is to revise the provisions concerning the location and the number of coatings on glass, selective and anti-radiant infrared, 14 - 15 - 16 - 17
The theoretical yield study of the solar collector, shows indeed that it is necessary to have the previous coatings on glass, 1 inside the vacuum volume (rather than outside.

Suivant les possibilités de fabrication industrielle, il y a d'ailleurs tout intéret, au point de vue rendement, à conserver si possible, les deux types d'application, simultanément sur les 4 faces concentriques des tubes 1 et 4 . Ceci au moins dans leur partie hémicylindrique inférieure. Il peut en être de même pour la partie hémicylindrique supérieure dans le cas d'une qualité convenable des coefficients de transmission lumineuse et de réflexion I.R. propres aux revêtements transparents.Depending on the possibilities of industrial manufacture, there is moreover, from the point of view of efficiency, keeping the two types of application if possible, simultaneously on the 4 concentric faces of the tubes 1 and 4. This at least in their lower semi-cylindrical part. It can be the same for the upper semi-cylindrical part in the case of a suitable quality of the light transmission and reflection coefficients I.R. specific to transparent coatings.

La présente invention, sera mieux comprise à l'aide de la description détaillée qui va suivre, des deux revendications afférentes, et des 2 figures NO I, et 2
"Le collecteur solaire est d'autre part caractérisé par la présence d'un écran anti-rayonnant à l'intérieur de l'espace sous vide. Cet écran es-t constitué dans la partie hémicylindrique supérieure du collecteur par un revêtement sélectif transparent au rayonnement solaire et réfléchissant au rayonnement infra-rouge et, dans la partie hémicylindrique inférieure par ce même revêtement ou par un dépôt métallique opaque et poli à haut pouvoir réflecteur infra-rouge.
The present invention will be better understood on the basis of the detailed description which follows, of the two related claims, and of the 2 figures NO I, and 2
"The solar collector is also characterized by the presence of an anti-radiant screen inside the vacuum space. This screen is formed in the upper semi-cylindrical part of the collector by a selective coating transparent to the solar radiation reflecting the infra-red radiation and, in the lower semi-cylindrical part by this same coating or by an opaque and polished metallic deposit with high infrared reflecting power.

Selon le domaine d'emploi du collecteur, ces revêtements sont appliqués soit uniquement sur la face externe du tube intérieur 4 suivant les parties hémicylindriques supérieure 16 et inférieure 14, soit de plus sur la face interne du tube extérieur 1 suivant une ou deux des parties he- micylindriques supérieure 17 et inférieure 15 situées en regard des précédentes ; soit même en plus de l'écran ci-dessus, sur tout ou partie de la face interne du tube 4 et de la face externe du tube 1. Les figures 1 et 2 montrent l'ensemble des revêtements possibles. Depending on the field of use of the collector, these coatings are applied either only on the outer face of the inner tube 4 along the upper semi-cylindrical parts 16 and lower 14, or moreover on the inner face of the outer tube 1 along one or two of the parts upper and lower hemicylindrical 15 located opposite the preceding; or even in addition to the above screen, on all or part of the internal face of the tube 4 and of the external face of the tube 1. Figures 1 and 2 show all of the possible coatings.

Outre celui de procurer un gain thermique important, ces dispositions ont l'avantage de permettre d'éviter la présence à l'intérieur de l'enceinte sous vide 5, d'aucun élément métallique épais dont le dégazage latent pourrait compromettre à long terme la qualité du vide. Enfin ces dispositions ont l'avantage de simplifier considérablement la fabrication de l'ensemble sous vide 1 4 5, et d'en faciliter la mise en oeuvre et le remplacement, comme pour tous les autres éléments du collecteur solaire ainsi constitué.  In addition to providing a significant thermal gain, these provisions have the advantage of making it possible to avoid the presence, inside the vacuum enclosure 5, of any thick metallic element whose latent degassing could compromise in the long term the vacuum quality. Finally, these arrangements have the advantage of considerably simplifying the manufacture of the vacuum assembly 1 4 5, and of facilitating its use and replacement, as for all the other elements of the solar collector thus formed.

Claims (2)

REVENDICATIONS 1 ) Collecteur solaire suivant la revendi 1) Solar collector according to the resale du brevet principal cation 1 , caracterisé, par la présence d'un écran anti-rayonnant à l'intérieur de l'espace sous vide. Cet écran étant lui-même constitué dans la partie hémicylindrique supérieure du collecteur par un revêtement sélectif transparent au rayonnement solaire et réfléchissant au rayonnement infra-rouge ; et dans la partie hémicylindrique inférieure du collecteur par ce même revêtement sélectif ou par un dépôt métallique opaque et poli à haut pouvoir réflecteur infra-rouge.  of the main patent cation 1, characterized by the presence of an anti-radiating screen inside the vacuum space. This screen itself being formed in the upper semi-cylindrical part of the collector by a selective coating transparent to solar radiation and reflecting to infrared radiation; and in the lower semi-cylindrical part of the collector by this same selective coating or by an opaque and polished metallic deposit with high infrared reflecting power. 2 ) Ecran anti-rayonnant suivant la reven 2) Anti-radiant screen according to the revenue ci dessus dication 1 , caractérisé en ce que le revêtement sélectif ou le dépôt métallique précédents soht appliqués soit uniquement sur la face externe du tube intérieur 4 suivant les parties hémicylindriques supérieure 16 et inférieure 14 ; soit, de plus, sur la face interne du tube extérieur 1 suivant une (-u deux des parties hémicylindriques supérieure 17 et inférieure 15 soit même en- supplémentà l'écran ci--dessus, sur tout ou partie de la face interne du tube 4 et de la face externe du tube 1 .  above dication 1, characterized in that the previous selective coating or metallic deposit applied soht is only on the external face of the inner tube 4 along the upper semi-cylindrical parts 16 and lower 14; either, in addition, on the internal face of the outer tube 1 along one (-u two of the upper semi-cylindrical parts 17 and lower 15 or even in addition to the screen above, on all or part of the internal face of the tube 4 and the external face of the tube 1.
FR828221383A 1982-09-14 1982-12-16 ELEMENTAL VACUUM SOLAR COLLECTOR Expired FR2542071B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR828221383A FR2542071B2 (en) 1982-09-14 1982-12-16 ELEMENTAL VACUUM SOLAR COLLECTOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8215627A FR2533019B1 (en) 1982-09-14 1982-09-14 ELEMENTAL VACUUM SOLAR COLLECTOR
FR828221383A FR2542071B2 (en) 1982-09-14 1982-12-16 ELEMENTAL VACUUM SOLAR COLLECTOR

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FR2542071A2 true FR2542071A2 (en) 1984-09-07
FR2542071B2 FR2542071B2 (en) 1985-07-26

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755216A1 (en) 1996-10-29 1998-04-30 Jouck Philip Allan Solar heat collector tube
WO1999045329A1 (en) 1998-03-04 1999-09-10 Philip Allan Jouck Absorber for vacuum tubular solar collector
CN103438585A (en) * 2013-09-04 2013-12-11 易建国 Energy-accumulation solar steam power source
CN106679201A (en) * 2015-11-06 2017-05-17 李军 All-glass sun vacuum ball
CN107883591A (en) * 2017-11-07 2018-04-06 桑夏太阳能股份有限公司 A kind of passive type dual flow path solar boiler
CN108302787A (en) * 2018-02-25 2018-07-20 李春花 A kind of bubbling type solar thermal collector and solar water heater
CN108362001A (en) * 2018-02-25 2018-08-03 李春花 A kind of solar thermal collector and solar water heater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015017A1 (en) * 1979-02-09 1980-09-03 Koninklijke Philips Electronics N.V. Heat transport tube solar collector and system comprising at least such a collector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015017A1 (en) * 1979-02-09 1980-09-03 Koninklijke Philips Electronics N.V. Heat transport tube solar collector and system comprising at least such a collector

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755216A1 (en) 1996-10-29 1998-04-30 Jouck Philip Allan Solar heat collector tube
WO1999045329A1 (en) 1998-03-04 1999-09-10 Philip Allan Jouck Absorber for vacuum tubular solar collector
CN103438585A (en) * 2013-09-04 2013-12-11 易建国 Energy-accumulation solar steam power source
CN106679201A (en) * 2015-11-06 2017-05-17 李军 All-glass sun vacuum ball
CN107883591A (en) * 2017-11-07 2018-04-06 桑夏太阳能股份有限公司 A kind of passive type dual flow path solar boiler
CN108302787A (en) * 2018-02-25 2018-07-20 李春花 A kind of bubbling type solar thermal collector and solar water heater
CN108362001A (en) * 2018-02-25 2018-08-03 李春花 A kind of solar thermal collector and solar water heater

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Publication number Publication date
FR2542071B2 (en) 1985-07-26

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