Hybrid cooling system for aircraft applications

摘要

An aircraft cooling system includes a refrigerant cycle (22) including a first heat exchanger (26). A liquid cycle passes a liquid through the first heat exchanger (26), at which it is cooled by a refrigerant in the refrigerant cycle. An air cycle compresses (42) air and delivers the compressed air into a second heat exchanger (48). The liquid passes through the second heat exchanger at a location downstream of the first heat exchanger. The liquid cools the air in the second heat exchanger. Air downstream of the second heat exchanger passes to be utilized by a use (58) on an aircraft.