Refrigeration – Utilizing solar energy
Patent
1992-06-29
1994-08-23
Davis, Jr., Albert W.
Refrigeration
Utilizing solar energy
62268, 417209, 16510427, F25B 102
Patent
active
053396456
ABSTRACT:
The invention consists of a cooling system which can be powered by solar energy, utilizing solar flat plate collectors. Water, the boiling point of which has been lowered by an air vacuum, is used as a refrigerant instead of freon. The water boils at low temperature in sealed air evacuated heat exchange coils and removes heat from the environment. A solar differential temperature engine is modified to include a pump mechanism. The pump is used to transfer the vapor, generated by the boiling of the low boiling point water in the heat exchange coils, from the coils to the chambers of the differential temperature engine. The vapor then re-condenses into a liquid, without a compressor, through the differential temperature between the chambers of the engine. The re-condensed liquid then returns spontaneously to the heat exchange coils by force of gravity. The cooling system may likewise operate through house hold electic power on a standby or permenant basis.
REFERENCES:
patent: 2114316 (1938-04-01), Randel
patent: 5186242 (1993-02-01), Adachi et al.
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