FR2482267A1 - Solar heat trap compressing two layers of flexible film or sheet - for low cost heating of fresh concrete - Google Patents

Solar heat trap compressing two layers of flexible film or sheet - for low cost heating of fresh concrete Download PDF

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Publication number
FR2482267A1
FR2482267A1 FR8005971A FR8005971A FR2482267A1 FR 2482267 A1 FR2482267 A1 FR 2482267A1 FR 8005971 A FR8005971 A FR 8005971A FR 8005971 A FR8005971 A FR 8005971A FR 2482267 A1 FR2482267 A1 FR 2482267A1
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France
Prior art keywords
layers
heat transfer
transfer fluid
volume
sheet
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FR8005971A
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French (fr)
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SAINT MARTIN ROLAND
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SAINT MARTIN ROLAND
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Priority to FR8005971A priority Critical patent/FR2482267A1/en
Publication of FR2482267A1 publication Critical patent/FR2482267A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/50Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F24S10/503Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits formed by paired plates, only one of which is plane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/50Solar heat collectors using working fluids the working fluids being conveyed between plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/50Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F24S10/501Solar heat collectors using working fluids the working fluids being conveyed between plates having conduits of plastic material
    • 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)
  • Tents Or Canopies (AREA)

Abstract

A simple solar energy trap is assembled using two layers of flexible plastics film between which a heat transfer fluid (air) can circulate, one film being black and the other being transparent to visible light but opaque to infra red radiation. Suitable for covering e.g. freshly laid concrete, to apply extra warmth during the day and conserve local ground warmth at night. The two layers may comprise two plane sheets supported at different levels or a combination of a plane sheet and a corrugated sheet supported from a common level. The lower, dark layer may be of flexible foam instead of solid sheet. The path of the heat transfer fluid between the two layers may be controlled by a pattern of seams welded, stuck or stitched to join the two layers.

Description

DESCRIPTIONS
La Drésente invention concerne le chauffage des bétons, de façon a activer la crise et le durcissement de ces derniers.
DESCRIPTIONS
The present invention relates to the heating of concrete, so as to activate the crisis and the hardening of the latter.

-A l'azure actuelle la thermo-maturation des bétons se usait principalement par chauffage de l'air situé dans une cloche recouvrant la pièces soit par chauffage d'une plaque d'acier situe sous la pièce, soit par combinaison des deux systèmes, soit encore par chauffage électrique des armatures noyées dans le béton.Tous ces moyens sont onéreux, soit par le matériel utilisé, soit par le prix des énergies utilisées Un système différent eonsiste à isoler thermiquement le béton de son environnement9 de façon à emprisonner la chaleur dégagée par le béton lors de sa prise ( réaction exothermique) et à faire ainsi un auto-étuvage
Ce dernier système est d'un eoût faible mais d'une efficacité souvent diminuée par la présence de ponts thermiques imposés par le coffrage ou la nature de la pièce à réalisera
L'invention indiquée ci-dessus, bien que liée à la présence d'ensoleillement, a l'avantage d'être très économique en invas- tissement, de ne rien coûter en énergie, de se réparer facilement, de se combiner aux moyens utilisés ( à l'exclusion de l'auto étuvage), et sa mise en place est des plus aisées. Enfin elle s'adapte parfaitement à toutes les formes de pièces.
-At the current azure the thermo-maturation of concretes was used mainly by heating the air located in a bell covering the parts either by heating a steel plate located under the part, or by combination of the two systems, either by electric heating of the reinforcements embedded in the concrete. All these means are expensive, either by the material used, or by the price of the energies used. A different system consists in thermally insulating the concrete from its environment9 so as to trap the heat released by the concrete during its setting (exothermic reaction) and thus to make a self-steaming
This last system is of low cost but of efficiency often diminished by the presence of thermal bridges imposed by the formwork or the nature of the part to be produced
The invention indicated above, although linked to the presence of sunshine, has the advantage of being very economical in investment, of not costing anything in energy, of being easily repaired, of being combined with the means used. (excluding self-steaming), and its installation is very easy. Finally it adapts perfectly to all shapes of parts.

Le système objet de la présente invention utilise la technique classique des capteurs solaires actuels, à savoir une paroi de transmission, un absorbeur d'énergie de couleur noire, un fluide caloporteur, un circuit de circulation de ce fluide, mais n'exige pas nécessairement la présence d'un isolant sous le fluide caloporteur
Son originalité réside dans la simplification technique et économique de l'ensemble, ainsi que dans l'obtention d'un produit incassable, souple, se pretant d'avantage d'utilisations et se rangeant plus facilement.
The system object of the present invention uses the conventional technique of current solar collectors, namely a transmission wall, a black energy absorber, a heat transfer fluid, a circuit for circulation of this fluid, but does not necessarily require the presence of an insulator under the heat transfer fluid
Its originality lies in the technical and economic simplification of the whole, as well as in obtaining an unbreakable, flexible product, which lends itself to more uses and which can be stored more easily.

La constitution d'un capteur souple peut être décrite de la manie suivante
a) - une paroi en plastique souple transparente dans le domaine des rayonnements visibles et opaque dans tout ou partie du spectre des infra-rouges, ( par exemple un film de polyane d'ésaisselar I5/I00 de ram) de manière à transmettre l'énergie
Solaire dans l'ensemble mais a bloquer tant que possible l'émission secondaire infra-rouCe dévagee nar l'absorbeur;
's) - verrière cette paroi, un fluide caloporteur simple, par exemple de l'air;;
ç) - une seconde paroi souple, envelonpant le fluide caloporteur et jouant en -mme temps le réale d'absorbeur d'énergie visible et de réemetteur d'énergie inNra-roue par sa qualité physique de corps noir. Il s'agira par exemple d'un film noir de polyéthylène de I0/I00 de mm d'épaisseur.
The constitution of a flexible sensor can be described in the following manner
a) - a transparent flexible plastic wall in the field of visible radiation and opaque in all or part of the infrared spectrum, (for example a polyethylene film of esaisselar I5 / I00 of ram) so as to transmit the energy
Solar on the whole but to block as far as possible the secondary infrared emission deviated by the absorber;
's) - canopy this wall, a simple heat transfer fluid, for example air;
ç) - a second flexible wall, enveloping the heat transfer fluid and at the same time playing the real role of visible energy absorber and energy re-emitter inNra-wheel by its physical quality of black body. It will, for example, be a black polyethylene film I0 / I00 mm thick.

Le circuit- de circulation du fluide caloporteur dans le capteur sera : soit toute la zone délimitée par l'écartement des films ( transparent et noir) tendus sur des supports de hauteur différentes ( Figure 1);
soit la ou les canalisations obtenues par collage ou soudure des Dlis d'un des films sur l'autre film tendu ( Figure 2) ou ( Figure 3).
The circuit for circulation of the heat transfer fluid in the sensor will be: either the entire area delimited by the spacing of the films (transparent and black) stretched on supports of different heights (Figure 1);
either the pipe or pipes obtained by bonding or welding the Dlis of one of the films to the other stretched film (Figure 2) or (Figure 3).

- - L'isolation thermique du capteur , si elle est nécessaire pour certaines applications ( éloignement du capteur de son utilisation , par exemple : eau chaude domestique), sera réalisée en substituant au mince film noir précédent une membrane souple noire mais du type mousse, de façon à obtenir par une structure alvéolaire et par épaisseur de cette menbrane, la résistance thermique souhaitée ( Figure 4). - - The thermal insulation of the sensor, if it is necessary for certain applications (distancing the sensor from its use, for example: domestic hot water), will be carried out by replacing the thin black film above with a flexible black membrane but of the foam type, so as to obtain by a honeycomb structure and by thickness of this menbrane, the desired thermal resistance (Figure 4).

e) - Le circuit de distribution du fluide caloporteur du capteur vers son utilisation se fer soit en enveloppant complètement la pièce à chauffer par le capteur et en ménageant des sorties de fluide caloporteur vers l'intérieur de ce;volume ( chauffage de béton par exemple); soit en raccordant le circuit étanche du fluide dans le capteur au lieu d'utilisation ou de stockage , au moyen de canalisations indépendantes ( eau chaude domestique par exemple). e) - The distribution circuit of the heat transfer fluid from the sensor to its use will be either by completely enveloping the part to be heated by the sensor and by providing outlets for heat transfer fluid towards the interior of this volume (heating of concrete for example ); either by connecting the fluid tight circuit in the sensor at the place of use or storage, by means of independent pipes (domestic hot water for example).

f)- Un système de pompe pourra éventuellement etre counlé sur le capteur en fonction des besoins et des utilisations , de même que les distositifs actuellement commercialisés de boitiers électroniques de commandes , ballon réservoir etc... f) - A pump system could possibly be fitted to the sensor according to needs and uses, as well as the currently marketed devices for electronic control units, tank tanks, etc.

L'inventinn des capteurs solaires souples s'applique à la production bon marché d'eau chaude ou d'air chaud , sa forme souple lui permet d'être déroulée suivant les besoins , aussi b ien sur toiture d'usine ou de maison que dans un jardin, ou même sur le toit d'une caravane. Son installation facile e-t son rangement par enroulement très simple permettent de l'utiliser occasionnellement. The inventinn of flexible solar collectors applies to the cheap production of hot water or hot air, its flexible shape allows it to be unwound as needed, as well on factory or house roofs as in a garden, or even on the roof of a caravan. Its easy installation and its storage by very simple winding allow it to be used occasionally.

Son application dans le cas du béton permet d'accêlerer les constructions à la montagne ou out au moins d'assurer une mise hors gel du béton ainsi protégé. Dans les travau:; publics, elle permet de durcir plus rapidement le béton et don c d'assurer avec plus de sécurité et de rapidité, des opérations de mise en précon- trainte. Its application in the case of concrete makes it possible to speed up constructions in the mountains or at least to ensure a frost protection of the concrete thus protected. In the works :; public, it makes it possible to harden concrete more quickly and thus c ensures, with more security and speed, prestressing operations.

Légende : Les dessins figurant en annexe jointe, représentent
Figure 1 - repère 1 = film souple noir
- repère 2 = fluide caloporteur
- repère 3 = film souple transparent
- repère 4 = représentation schématique des supports.
Caption: The drawings in the attached annex represent
Figure 1 - item 1 = black flexible film
- item 2 = heat transfer fluid
- item 3 = transparent flexible film
- item 4 = schematic representation of the supports.

Figure 2 et Figure 3
- repère 1 = film souple noir
- repère 2= fluide caloporteur
- repère 3 = film souple transparent
- repère 4 = représentation schématique des supports.
Figure 2 and Figure 3
- mark 1 = black flexible film
- item 2 = heat transfer fluid
- item 3 = transparent flexible film
- item 4 = schematic representation of the supports.

- repère 5 = ligne de soudure ou de collage
Figure 4 - repère 1 = membrane Type mousse, souple et noire
- repère ' = fluide caloporteur,
- repère 3 = film souple tranSparent
- repère 4 = représentation schématique des supports.
- mark 5 = welding or gluing line
Figure 4 - item 1 = membrane Type foam, flexible and black
- mark '= heat transfer fluid,
- item 3 = transparent transparent film
- item 4 = schematic representation of the supports.

Claims (1)

R~VE.DICATIOrtS  R ~ VE.DICATIOrtS T - Système permettant de fournir de la chaleur d'origine -solaire, caractérisé par le fait que l'on associe deux films plastiques souples enveloppant un fluide caloporteur, dont l'un sera noir et l'autre transparent en lumière visible mais opaque aux infra-rougves.  T - System for supplying heat of -solar origin, characterized by the fact that two flexible plastic films are combined enveloping a heat-transfer fluid, one of which will be black and the other transparent in visible light but opaque to infrared. II- Système selon la revendication I, caractérisé par le fait que le volume occupé par le fluide caloporteur peut être obtenu par simple décalage des supports sur lesquels sont tendus ces filmes, II- System according to claim I, characterized in that the volume occupied by the heat transfer fluid can be obtained by simply shifting the supports on which these films are stretched, III - Système selon la revendication I,caractérisépar le fait que le fluide caloporteur peut être canalisé dans les plis des deux films en contact par collage, soudure ou couture suivant des lignes quelconques. III - System according to claim I, characterized by the fact that the heat transfer fluid can be channeled in the folds of the two films in contact by gluing, welding or sewing along any lines. IV - Système selon la revendication III, caractérisé par la IV - System according to claim III, characterized by the possibilité d'utiliser à la place du film plastique souple noir possibility to use instead of black flexible plastic film précédent, une membrane souple et noire du type mousse, de façon previous, a flexible, black foam-type membrane, so à intégrer une isolation au système. to integrate insulation into the system. V - Système selon la revenaicstion II, caractérisé par le V - System according to Revenaicstion II, characterized by fait que le système peut recouvrir l'ensemble du volume d'utilisa the system can cover the entire volume of use tion. tion. VI - Système selon la revendication V, caractérisé par le VI - System according to claim V, characterized by fait que des sorties de fluides calotorteurs se font directement causes that heat transfer fluids exit directly dans le volume d'utilisation. in the volume of use. VII- Système selon la revendication III, caractérisé par le VII- System according to claim III, characterized by the fait que le système peut recouvrir l'ensemble du volume d'utilisation, the fact that the system can cover the entire volume of use, ,VIII- Système selon la revendication VII, caractérisé par le , VIII- System according to claim VII, characterized by fait que les sorties de fluide caloporteur se font directement causes the coolant outlets to take place directly dans le volume d'utilisation.  in the volume of use. I:f - système selon la revendication IV, caractérisé par le fait que le système peut recouvrir l'ensemble du volume d'utilisation. I: f - system according to claim IV, characterized in that the system can cover the entire volume of use. I: - système selon la revendication IX, carctérisé par le fait que les sorties de fluide caloporteur se font directement dans le volume d'utilisation. I: - system according to claim IX, characterized by the fact that the heat transfer fluid outlets are made directly in the use volume.
FR8005971A 1980-03-14 1980-03-14 Solar heat trap compressing two layers of flexible film or sheet - for low cost heating of fresh concrete Pending FR2482267A1 (en)

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FR8005971A FR2482267A1 (en) 1980-03-14 1980-03-14 Solar heat trap compressing two layers of flexible film or sheet - for low cost heating of fresh concrete

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410621B (en) * 2001-09-19 2003-06-25 Felix Heescher Gmbh SHADING AND / OR INSULATION, AND METHOD FOR THE PRODUCTION AND USE THEREOF

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022781A (en) * 1959-06-11 1962-02-27 Andrassy Stella Heater
US3076450A (en) * 1961-06-16 1963-02-05 Edward W Gough Plastic solar heater
FR1570716A (en) * 1968-04-30 1969-06-13
GB1366481A (en) * 1971-07-27 1974-09-11 Gkn Sankey Ltd Units suitable for glazing or solar absorbtion
US4026268A (en) * 1975-09-29 1977-05-31 Dow Corning Corporation Solar energy collector
US4069283A (en) * 1976-04-05 1978-01-17 Rauchfuss Arthur A Method of curing and protecting a concrete column
DE2717711A1 (en) * 1977-04-21 1978-10-26 Heinz Hoelter House heat screen for tropical regions - consists of inflatable roof covering of corrugated transparent foil on black absorption foil
FR2426219A1 (en) * 1978-05-18 1979-12-14 Saint Gobain Solar energy collector - has absorber comprising two joined corrugated sheets with heat transfer fluid circulating parallel to connections
GB2025602A (en) * 1978-07-12 1980-01-23 Taylor A W Solar panel.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022781A (en) * 1959-06-11 1962-02-27 Andrassy Stella Heater
US3076450A (en) * 1961-06-16 1963-02-05 Edward W Gough Plastic solar heater
FR1570716A (en) * 1968-04-30 1969-06-13
GB1366481A (en) * 1971-07-27 1974-09-11 Gkn Sankey Ltd Units suitable for glazing or solar absorbtion
US4026268A (en) * 1975-09-29 1977-05-31 Dow Corning Corporation Solar energy collector
US4069283A (en) * 1976-04-05 1978-01-17 Rauchfuss Arthur A Method of curing and protecting a concrete column
DE2717711A1 (en) * 1977-04-21 1978-10-26 Heinz Hoelter House heat screen for tropical regions - consists of inflatable roof covering of corrugated transparent foil on black absorption foil
FR2426219A1 (en) * 1978-05-18 1979-12-14 Saint Gobain Solar energy collector - has absorber comprising two joined corrugated sheets with heat transfer fluid circulating parallel to connections
GB2025602A (en) * 1978-07-12 1980-01-23 Taylor A W Solar panel.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410621B (en) * 2001-09-19 2003-06-25 Felix Heescher Gmbh SHADING AND / OR INSULATION, AND METHOD FOR THE PRODUCTION AND USE THEREOF

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