Stoves and furnaces – Heaters – Surface
Patent
1977-07-06
1979-02-20
Dority, Jr., Carroll B.
Stoves and furnaces
Heaters
Surface
165105, F24J 302
Patent
active
041401034
ABSTRACT:
A solar energy collector comprising a closed envelope formed from two sheets of metallic material bonded together around their peripheral edges and spaced apart to define a space adapted to be filled with working fluid and opening into a vapor space formed from an outwardly directed indentation in one of the sheets and into which space working fluid can vaporize when heated by exposing one surface of the envelope to solar radiation. At least one condensing tube is provided in direct thermal contact with the vapor space and through which liquid to be heated flows, while means are provided for returning condensed vapor from the vapor space to the working fluid space. In one form of the invention a lower of the two sheets has a plurality of parallel extending corrugations formed therein the inner extremities of which abut the surface of the upper sheet to space the sheets apart, which corrugations are alternatively of large and small width, the larger corrugations primarily forming a plurality of working fluid spaces and the smaller of the corrugations primarily forming a plurality of condensate return channels, with one condensing tube passing into and through the vapor space. The closed envelope in one form of the invention is supported in a container and is surrounded beneath and at the sides and ends thereof by a layer of insulating material with the upper open face of the container being closed by a sheet of toughened glass.
REFERENCES:
patent: 3906261 (1975-09-01), Ogura et al.
patent: 3923038 (1975-12-01), Cutchaw
patent: 4027653 (1977-06-01), Meckler
patent: 4038966 (1977-08-01), Harrison
patent: 4062350 (1977-12-01), Reed
Dority Jr. Carroll B.
The Broken Hill Proprietary Company Limited
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