Combined air cycle heat pump and refrigeration system

Details Combined air cycle heat pump and refrigeration system Combined air cycle heat pump and refrigeration system

1979-06-01

1981-10-20

Davis, Albert W.

Heat exchange

Regenerator

Checker brick structure

165 48S, 165 62, 62 95, 62401, 417366, F25B 1300

Patent

active

042955181

ABSTRACT:
In an air conditioning system for a load, air is used as the refrigerant, and identical components including a turbocompressor and a regenerative heat exchanger are used for both cooling in the refrigeration mode and heating in the heat pump mode. A plurality of valves are arranged so that in the refrigeration mode the refrigerant air operates in a closed dry air loop to avoid problems associated with moisture. In the heat pump mode the valves are arranged to cause the refrigerant air to operate open loop by using ambient air as the input to the cycle, and avoiding icing problems by rejecting the refrigerant air, together with any ice present, back into the ambient. Operation closed loop in the refrigeration mode and open loop in the heat pump mode results in maximum cycle efficiency with minimum difficulty caused by moisture entrained in the refrigerant air.

REFERENCES:
patent: 2602307 (1952-07-01), Collison
patent: 3191403 (1965-06-01), Ladusaw

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