Solar heating unit and heat transfer apparatus

Details Solar heating unit and heat transfer apparatus Solar heating unit and heat transfer apparatus

1982-06-14

1984-03-27

Jones, Larry

Stoves and furnaces

Tool having fluid fuel burner

Soldering iron

126423, 126428, 126444, 165170, F24J 302

Patent

active

044387580

ABSTRACT:
A heating unit (10) transfers energy via vaporized working fluid exclusively. The unit operates at sub-atmospheric pressure and a unique heat transfer apparatus (84) is provided to serve as an energy absorber panel (12) and/or a heat exchange unit (44). Since vaporized working fluid is utilized to transfer energy several hundred times the amount of energy can be transferred per unit weight of working fluid as compared to systems which transfer energy via liquid working fluid. Thus, a minimal amount of working fluid can be utilized. The heating unit (10) is constructed so as to prevent the delivery of working fluid to the interior cavity (18) of the energy absorber panel (12) in response to the working fluid within the cavity (18) reaching a selected level. Vapor is conducted from a location in the cavity (18) above that selected level to the heat exchange unit (44). The working fluid is selected to boil at a sub-atmospheric pressure within the cavity (18) at a temperature which falls within a range from about 27.degree. C. to about 99.5.degree. C.

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patent: 4270521 (1981-06-01), Brekke
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