Stoves and furnaces – Tool having fluid fuel burner – Curling iron
Patent
1978-05-05
1982-07-20
Davis, Albert W.
Stoves and furnaces
Tool having fluid fuel burner
Curling iron
126419, 126433, 126435, 16510422, 16510425, F24J 302
Patent
active
043400302
ABSTRACT:
Various systems are disclosed for absorbing radiant heat, especially solar heat, by evaporating a refrigerant, and for releasing the heat thus absorbed to a medium to be heated, by condensing the evaporated portion of the refrigerant. The refrigerant fluid loop includes (1) an evaporator, or solar collector, including passageways where at least a portion of the refrigerant is vaporized, (2) a separator which may be a part of or a separate component from the evaporator, that divides the vapor portion and the liquid portion of the refrigerant exiting the evaporator passageways, (3) a condenser for condensing the vapor portion of the refrigerant and transferring the latent heat released to a medium to be heated, and (4) a condensate pump to return the liquid refrigerant from the separator and condenser to the evaporator. Systems are also disclosed for returning the liquid refrigerant to the evaporator by gravity thus eliminating the need for a condensate pump. Controls and component arrangements are shown for maintaining the temperature of evaporation of the refrigerant automatically insofar as practical just above that of the medium to be heated, independently of changes in the temperature of the medium, the temperatures of the system's surroundings, and the intensity of radiation intercepted by the system. Also disclosed are novel solar collector designs applicable to the invented systems.
REFERENCES:
patent: 1119063 (1914-12-01), Burnap
patent: 2396338 (1946-03-01), Newton
patent: 2933885 (1960-04-01), Benedek et al.
patent: 3390672 (1968-07-01), Snelling
patent: 4052976 (1977-10-01), Hinterberger
patent: 4102325 (1978-07-01), Cummings
patent: 4120289 (1978-10-01), Bottum
patent: 4220138 (1980-09-01), Bottum
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