F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
45/12
F24F 3/02 (2006.01) B60H 1/32 (2006.01) B64D 13/06 (2006.01) F25D 21/00 (2006.01) F25B 9/00 (2006.01)
Patent
CA 1093303
IMPROVED EFFICIENCY AIR CYCLE ENVIRONMENTAL CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE . In a compressed air powered refrigeration system for aircraft containing a refrigeration turbine and associated heat exchangers for supplying cool air to the aircraft cabin, air is recirculated from the cabin by a recircula- tion means and combined with the turbine discharge air to simultaneously melt ice present in the turbine discharge and provide cooling to the recirculated air. The lack of ice in the turbine discharge allows the use of an ice-free regenerative heat exchanger, in heat exchange relation with the mixture of the turbine discharge air and recirculated cabin air, to condense moisture from the air entering the turbine. The use of heat from the cabin air to mel~ ice coupled with maximum utilization of the recirculation means supplying the recirculating cabin air enables the turbine to provide air at a temperature below freezing and results in improved cycle efficiency as well as maximum possible ventilation rate to the load. H842A-EC
320161
Swabey Ogilvy Renault
United Technologies Corporation
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