Refrigeration – Automatic control – Diverse – cascade or compound refrigeration-producing system
Patent
1983-10-05
1986-02-04
Tapolcai, William E.
Refrigeration
Automatic control
Diverse, cascade or compound refrigeration-producing system
62332, 165140, F25B 2500
Patent
active
045677336
ABSTRACT:
An air conditioning system which incorporates evaporator coils for extracting heat from air with a liquefiable gas refrigerant, and cooling coils containing a liquid coolant, such as an aqueous ethylene glycol solution, that has been cooled by cold outside air, includes such coils joined in heat transfer relationship to a multiplicity of common heat transfer fins. Due to the improved heat transfer because of a larger fin area transferring heat from either the refrigerant-containing coils or the coolant-containing coils when either refrigerant or coolant is passed through its coils, more coolant coils can be joined to the fins, so that more effective air conditioning is obtainable when the air conditioning system is in the economizing mode (with the compressor being turned off and the cooled liquid coolant being circulated through its cooling coils). Further improvements in the structure and efficiency of the air conditioning system are obtainable when dual such systems are employed in conjunction, with the liquid coolant being cooled in a single heat exchanger by outside air and being circulatable through either or both sets of cooling coils of the component system and through either or both condensers for the refrigerant, to condense the refrigerant.
REFERENCES:
patent: 3024008 (1962-03-01), Blum
patent: 3237415 (1966-03-01), Newton
patent: 3276516 (1966-10-01), Japhet
patent: 4256475 (1981-03-01), Schafer
patent: 4313310 (1982-02-01), Kobayashi et al.
Hiross, Inc.
Kramer Raymond F.
Tapolcai William E.
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