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Liquid Helium and Nitrogen Supply Systems for Space Simulators

  • J. L. Aberle
  • A. J. Westbrock
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 8)

Abstract

The magnitude of costs and complexity of equipment needed for the launch of a single space probe dictates the need for system components of maximum reliability, To attain the degree of perfection required, these system components must be designed, fabricated, and tested to meet the actual conditions of space flight. Economy dictates that these conditions be examined and that operational tests be conducted, where possible, at the earth’s surface. Three of these space characteristics which may have great effect on the flight performance of system components and which can be simulated at the earth’s surface are the point source or unidirectional high radiation source, the cold heat sink and the high vacuum of space. This paper will be concerned with the cryogenic systems required to simulate the second and third of these conditions, Equipment to be discussed will include two large helium refrigeration systems operating at the 20° and 4.2°K levels, As for any engineering test of a prototype, exact reproduction of space environment may not be required; simulation is necessary only to the extent that it will affect flight equipment performance.

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References

  1. 1.
    W. J. Moore, Physical Chemistry, 2nd ed.. Prentice Hall, Inc., Englewood Cliffs, New Jersey (1955), p. 166.Google Scholar
  2. 2.
    S. Dushman, Scientific Foundations of Vacuum Technique, John Wiley and Sons, Inc., New York (1949) p. 99.Google Scholar
  3. 3.
    D. J. Santeler, “Pressure Simulation of Outer Space,” American Vacuum Society Transactions, Pergamon Press, New York (1959) p. 129.Google Scholar
  4. 4.
    A. D. Little, Inc., “Large Space Environment Facility Study,” AEDC-TN-60–18 (1960), p. 54.Google Scholar

Copyright information

© Springer Science+Business Media New York 1963

Authors and Affiliations

  • J. L. Aberle
    • 1
  • A. J. Westbrock
    • 1
  1. 1.Division of Union Carbide CorporationLinde CompanyTonawandaUSA

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