1992-10-01

Centrifuge Test of an Aircraft Vapor Cycle Environmental Control System 922051

Vapor cycle environmental control systems are being designed for efficient electronic cooling on advanced fighter aircraft. A vapor cycle system, employing a two-phase refrigerant, must be able to operate in a variety of attitudes in a variable-gravity flight environment. In order to verify operation of an agile aircraft's vapor cycle system prior to flight test, the Air Force is upgrading the Armstrong Laboratory's Dynamic Environment Simulator centrifuge. This paper will discuss the facility, the types of testing that will be used to simulate flight loads, and the design of vapor cycle components which will allow them to operate in a variable-G environment.

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