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Hydrogen Reliquefaction in Earth Orbit

  • A. Rose
  • L. A. Gibson
  • W. K. Wilkinson
  • J. J. Tamusaitis
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 12)

Abstract

The effectiveness of many earth-orbit missions of long duration depends on the conservation of cryogenic propellants. For storage periods of the order of several days to several months, the reduction of cryogen boil-off losses is a critical problem. Present insulation techniques are inadequate beyond a few hours. It is believed that for many applications even superinsulation will allow too much boil-off. Consequently, relique-faction of all or part of the cryogen vapor is being considered as a means of reducing or eliminating boil-off losses. Both closed and open cycle reliquefier systems can offer weight savings and make certain missions possible that previously were not. Furthermore, the reliquefier can be used in conjunction with superinsulation for optimum results.

Keywords

Heat Exchanger Heat Sink Storage Tank Earth Orbit Refrigeration Cycle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    L. A. Gibson, W. K. Wilkinson, and J. J. Tamusaitis, “Extraterrestrial Reliquefaction of Cryogenic Propellants,” The Marquardt Corporation, Report 6099, Contract NAS 8–5298 (December 11, 1965).Google Scholar
  2. 2.
    T. A. Sedgwick, in Advances in Cryogenic Engineering, Vol. 11, Plenum Press, New York (1966), p. 241.CrossRefGoogle Scholar
  3. 3.
    H. M. Roder and R. D. Goodwin, “Provisional Thermodynamic Functions for Parahydrogen,” NBS Tech. Note 130 (PB 16131), (December 1961).Google Scholar
  4. 4.
    J. C. Mullins, W. T. Ziegler, and B. S. Kirk, “The Thermodynamic Properties of Parahydrogen from 1° to 22°K,” Georgia Institute of Technology Report No. 1, Project No. A-593; NBS Contract No. CST-7339 (November 1, 1961).Google Scholar
  5. 5.
    A. Shaffer and J. Rousseau, “Thermodynamic Properties of 20.4°K Equilibrium-Hydrogen,” ASD TR 61–360 AiResearch Manufacturing Co. (October 1961).Google Scholar

Copyright information

© Springer Science+Business Media New York 1967

Authors and Affiliations

  • A. Rose
    • 1
  • L. A. Gibson
    • 1
  • W. K. Wilkinson
    • 1
  • J. J. Tamusaitis
    • 1
  1. 1.The Marquardt CorporationVan NuysUSA

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