Across-Gimbal and Miniaturized Cryogenic Loop Heat Pipes

Details Across-Gimbal and Miniaturized Cryogenic Loop Heat Pipes Across-Gimbal and Miniaturized Cryogenic Loop Heat Pipes

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..654..218b&link_type=abstract

SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2003: Conf.on Thermophysics in Microgravity; Commercial/Civil Next Generation

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Applications

Heat Engines, Heat Pumps, Heat Pipes, Spaceborne And Space Research Instruments, Apparatus, And Components

Scientific paper

This paper describes the development status of three advanced cryogenic loop heat pipes (CLHP) for solving important problems in cryogenic integration. The three devices described herein are: (1) an across-gimbal CLHP; (2) a short transport length miniaturized CLHP; and (3) a long transport length miniaturized CLHP. The across-gimbal CLHP, which is baselined for operation from 80-100 K with nitrogen, provides a low weight, low torque, high conductance solution for gimbaled cryogenic systems wishing to mount their cryocoolers off-gimbal. The short transport length miniaturized CLHP, which is baselined for operation near 35 K with neon, combines localized thermal transport, flexibility, and thermal switching into one device that can be directly mounted to a cryocooler cold head and a cryogenic component just a short distance (10-20 cm) away. The long transport length miniaturized CLHP, which is also baselined for operation near 35 K with neon, adds to the capabilities of the short transport length miniaturized CLHP by increasing the transport length to over 250 cm to meet cryogenic heat transport device requirements of future NASA and DoD spacecraft.

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