Refrigeration – Processes – Defrosting or frost inhibiting
Patent
1983-06-27
1986-04-01
King, Lloyd L.
Refrigeration
Processes
Defrosting or frost inhibiting
62239, 62241, 62402, F25D 2100, F25D 900
Patent
active
RE0321001
ABSTRACT:
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 recirculation 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 melt 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.
REFERENCES:
patent: 2618470 (1952-11-01), Brown et al.
patent: 2786341 (1957-03-01), Green
patent: 2800002 (1957-07-01), Seed
patent: 2930205 (1960-03-01), Walker
patent: 3199578 (1965-08-01), Rogers
patent: 3208234 (1965-09-01), Messinger
patent: 4127011 (1978-11-01), Giles et al.
King Lloyd L.
Swiatocha John
United Technologies Corporation
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