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Continuous and periodic sorption cryocoolers for 10 K and below.

Author(s) : WADE L. A., LEVY A. R., BARD S.

Summary

The paper summarizes the current status of sorption cryocooler development for 10 K and below. Flight test results for the Brilliant Eyes 10 Kelvin Sorption Cryocooler Experiment (BETSCE), and the design and fabrication of a small laboratory periodic 10 K sorption cryocooler are described. Ground test results from a continuous 25 K cooler planned for use in a long duration airborne balloon experiment are also presented. The 10 K cooling stages all expand, liquefy, and solidify hydrogen in a Joule-Thomson refrigeration cycle. Zirconium-nickel hydride sorbent beds provide the low vacuum pressure needed to solidify the hydrogen. Lanthanum-nickel(4.8)-tin(0.2) hydride sorbent beds are used to achieve the final compression.

Details

  • Original title: Continuous and periodic sorption cryocoolers for 10 K and below.
  • Record ID : 1998-1517
  • Languages: English
  • Source: Cryocoolers 9. Proceedings of the International Cryocooler Conference.
  • Publication date: 1996/06/25
  • Document available for consultation in the library of the IIR headquarters only.

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