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A Fixed Percentage Binary Gas for Life Support Derived from Two Steady-State Cryogenic Liquids

  • W. J. Carter
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 12)

Abstract

The use of liquid air in manually portable life-support systems is becoming more and more common. Users of these systems, however, are experiencing difficulties which are inherent to liquid air. If a subcooled liquid is used, manual motion can collapse the pressure head to a point insufficient to satisfy demand flow rates. If a boiling liquid is used, the pressure head is retained but the percentage of the constituents in the liquid, from which the breathing gas is derived, changes with time. In either state, accidental breathing of the gas phase in the container can cause death due to low oxygen content, even though the liquid phase contains 21% oxygen. A new concept to overcome these inherent disadvantages is presented in this paper.

Keywords

Pressure Head Supercooled Liquid Breathing Rate Relief Valve Binary Liquid Mixture 
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

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    D. B. Chelton and D. B. Mann, WADC Tech. Report 59–8, AD No. 208155 (March, 1959) Fig. 39.Google Scholar
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    “p-H Properties of Oxygen,” Institut International du Froid Laboratoire, Kamerlingh Onnes Laboratory, Leiden, Netherlands (December 1, 1942).Google Scholar
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    “p-H Properties of Nitrogen,” Institut International du Froid Laboratoire, Kamerlingh Onnes Laboratory, Leiden, Netherlands (May 1, 1940).Google Scholar
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    F. E. Adley, C. M. Berry, E. W. Gilliland, G. M. Glidden, E. C. Hyatt, F. R. Ingram, H. S. Jordan, S. J. Pearce, H. H. Schrenk, and L. Silverman, American Industrial Hygiene Assn.Respiratory Devices Manual, (1963), Table 2.1.Google Scholar

Copyright information

© Springer Science+Business Media New York 1967

Authors and Affiliations

  • W. J. Carter
    • 1
  1. 1.Aro-Firewel Co., Inc.BuffaloUSA

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