Refrigeration – Processes – Condensing and evaporating
Patent
1979-07-10
1981-10-20
Davis, Albert W.
Refrigeration
Processes
Condensing and evaporating
62333, 165DIG12, 16510421, F25D 1500, F28D 1500
Patent
active
042953421
ABSTRACT:
Heat exchange is effected in a simple and economical manner by allowing natural flow, i.e., without mechanical compressors, pumps, etc., of a heat exchange fluid such as a conventional refrigerant liquid between two heat exchangers which are exposed to air at different temperatures. The two heat exchangers, which may conveniently take the form of fin-tube heat exchangers, for example, are arranged with one end at a higher elevation than the other, the upper ends of the two exchangers being connected in direct communication and the lower ends being likewise connected. As the refrigerant liquid absorbs heat and evaporates in the heat exchanger exposed to the warmer air the vapor travels through the upper connecting line to the other heat exchanger, where it rejects heat and is condensed, the liquid flows through the lower connecting line back to the first heat exchanger, and so on, with heat exchange between the two air streams or masses occurring during the natural, continuous flow of the refrigerant in gaseous and liquid form.
REFERENCES:
patent: 2072486 (1937-03-01), Smith
patent: 3623549 (1971-11-01), Smith, Jr.
patent: 3865184 (1975-02-01), Grover
Davis Albert W.
McGuire Charles S.
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