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The Feasibility of Cryogenic Freeze-Out for Control of Atmospheric Trace Contaminants in Manned Spacecraft

  • J. C. Ballinger
  • E. J. Russ
  • W. J. Sevier
Conference paper

Abstract

Among the problems which must be considered for long-term manned space flight, gaseous contaminant control may be one of the most important. Early space cabin simulators were so leaky that the regular changeover of air did not allow the problem to show itself. The Mercury flights presented no contamination problem because they were of short duration and the cabin had a relatively high leakage rate of about two pounds per day. However, as longer missions require that space cabins become more airtight, trace contaminants in the cabin atmosphere may well prove to be a serious problem. Empirical data is meager on the long-term effects of the many possible contaminants on man and applicable theories concerning toxicity are lacking. Further, the procurement of additional data on long-term metabolic toxic limits can become a tremendous task.

Keywords

Pressure Drop Heat Exchanger Outlet Temperature Inlet Concentration Contamination Rate 
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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Copyright information

© Springer Science+Business Media New York 1967

Authors and Affiliations

  • J. C. Ballinger
    • 1
  • E. J. Russ
    • 1
  • W. J. Sevier
    • 1
  1. 1.Convair Division of General DynamicsSan DiegoUSA

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