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Problems in Cool-Down of Cryogenic Systems

  • J. C. Bronson
  • F. J. Edeskuty
  • J. H. Fretwell
  • E. F. Hammel
  • W. E. Keller
  • K. L. Meier
  • A. F. Schuch
  • W. L. Willis
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 7)

Abstract

At the Los Alamos Scientific Laboratory the facilities and technology for handling large quantities of liquid hydrogen are being developed. This project is in support of the Rover program which is a joint endeavor of the Atomic Energy Commission and the National Aeronautics and Space Administration to develop nuclear- powered rocket engines. Since the power for propulsion is to be obtained from the nuclear reaction, the hydrogen, rather than undergoing combustion, is heated by the nuclear reactor and then exhausted through the nozzle. In this manner a specific impulse of about 750 seconds is obtained which can be compared with numbers like 300 seconds obtained when the propellant gas is the product of a chemical reaction. To date three successful tests have been made with reactors using hydrogen gas. Since the weight of containers per pound of propellant can be about 1000 times smaller for liquid storage than gas storage, it is advantageous that the hydrogen be transported as a liquid in a flyable reactor engine. To this end, facilities providing for the testing of reactors with liquid hydrogen are being constructed.

Keywords

Pressure Fluctuation Test Cell Atomic Energy Commission Slug Flow Annular Flow 
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.
    W.G. Flieder et al. in Advances in Cryogenic Engineering, Vol. 5, K. D. Timmerhaus (ed.), Plenum Press, Inc., New York (1960), p. 111.Google Scholar
  2. 2.
    O. Baker, “Design of Pipe Lines for Simultaneous Flow of Oil and Gas,” The Oil and Gas journal (July 26, 1954).Google Scholar
  3. 3.
    E. E. Shaw, Los Alamos Scientific Laboratory, private communication.Google Scholar
  4. 4.
    J. C. Burke et al. in Advances in Cryogenic Engineering, Vol. 4. K. D. Timmerhaus (ed.), Plenum Press, Inc., New York (1960), p. 378.Google Scholar
  5. 5.
    CEL National Bureau of Standards, private communication.Google Scholar
  6. 6.
    R. Bohl, Los Alamos Scientific Laboratory, private communication.Google Scholar

Copyright information

© Springer Science+Business Media New York 1962

Authors and Affiliations

  • J. C. Bronson
    • 1
  • F. J. Edeskuty
    • 1
  • J. H. Fretwell
    • 1
  • E. F. Hammel
    • 1
  • W. E. Keller
    • 1
  • K. L. Meier
    • 1
  • A. F. Schuch
    • 1
  • W. L. Willis
    • 1
  1. 1.Los Alamos Scientific Laboratory LosAlamosUSA

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