F - Mech Eng,Light,Heat,Weapons – 25 – J
Patent
F - Mech Eng,Light,Heat,Weapons
25
J
162/117, 162/141
F25J 1/02 (2006.01) F25B 1/10 (2006.01) F25B 7/00 (2006.01) F25B 9/00 (2006.01)
Patent
CA 1153954
ABSTRACT A cooling system involves cooling circuit means in which a circulating cooling medium is compressed and cooled by an ambient cooling fluid and is condensed, expanded, warmed and evaporated. The system includes at least one cooling circuit which is an incorporated cascade circuit that includes a fractional condensation in which the cooling medium is partially condensed in a first heat exchange constituting an evaporative heat exchange with expanded and evaporating cooling medium, and the partially condensed cooling medium is separated into its liquid and gaseous phases. The separated liquid phase is supercooled in a second heat exchange constituting a counter- current supercooling heat exchange, and is expanded and warmed to evaporate in a third heat exchange constituting a counter-current evaporative heat exchange. The separated gaseous phase is totally condensed in the third heat exchange, and expanded and warmed in the second heat ex- change. Expanded cooling medium is warmed in the second or the third heat exchange repsectively, without in the same circulation of the incorporated cascade circuit being also warmed in the third or second heat exchange respec- tively. The second and third heat exchanges are essentially thermally segregated from one another.
427119
Krieger Heinrich
Sim & Mcburney
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