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Flight Testing of a Cryogenic Capillary Pumped Loop
Technical Paper
1999-01-2627
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the flight test results of the fifth generation cryogenic capillary pumped loop (CCPL-5) which flew on the Space Shuttle STS-95 in October of 1998 as part of the CRYOTSU Flight Experiment. This flight was the first in-space demonstration of the CCPL, a lightweight heat transport and thermal switching device for future integrated cryogenic bus systems. The CCPL-5 utilized nitrogen as the working fluid and operated between 75K and 110K. Flight results indicated excellent performance of the CCPL-5 in a micro-gravity environment. The CCPL could start from a supercritical condition in all tests, and the reservoir set point temperature controlled the loop operating temperature regardless of changes in the heat load and/or the sink temperature. In addition, the loop demonstrated successful operation with heat loads ranging from 0.5W to 3W, as well as with parasitic heat loads alone.
Authors
Citation
Ku, J., Kobel, M., Bugby, D., Kroliczek, E. et al., "Flight Testing of a Cryogenic Capillary Pumped Loop," SAE Technical Paper 1999-01-2627, 1999, https://doi.org/10.4271/1999-01-2627.Also In
References
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