23 June 1994 Application of a refrigerator/phase-change cooler to a space-based sensor
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This paper discusses the concept of a mechanical refrigerator integrated with a phase-change cryogen for cooling space borne sensors. Also described is the proposed integration of a small tactical mechanical refrigerator with a small amount of methanol to cool an orbiting sensor imaging atmospheric gravity waves. Included are the results of ground tests of the methanol melting/freezing process. Results indicate that a constant temperature during freezing and melting is possible if the heat loads into the system are low enough to maintain the phase-change substance near equilibrium. Plans for the next laboratory experiment are also outlined. The paper further presents a comparison of other substances that may be considered for use as a phase- change material.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian G. Williams, J. Clair Batty, "Application of a refrigerator/phase-change cooler to a space-based sensor", Proc. SPIE 2227, Cryogenic Optical Systems and Instruments VI, (23 June 1994); doi: 10.1117/12.178597; https://doi.org/10.1117/12.178597


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