Accession Number:

AD0683348

Title:

PSYCHROMETRIC PROPERTIES OF HELIUM-WATER VAPOR MIXTURES: A STUDY OF THE RELATIONSHIP BETWEEN TEMPERATURE, PRESSURE AND HUMIDITY, AND WET-AND DRY-BULB TEMPERATURES

Descriptive Note:

Final rept. Feb 1967-Aug 1968

Corporate Author:

NEW HAMPSHIRE UNIV DURHAM ENGINEERING DESIGN AND ANALYSIS LAB

Report Date:

1968-08-01

Pagination or Media Count:

62.0

Abstract:

With mans increasing interest in exploring the ocean at greater and greater depths, it was found necessary to replace the nitrogen of the normal atmosphere with helium to provide a breathing gas for those living at ambient ocean pressure. This led to a need for a knowledge of the psychrometric properties of helium at pressures up to several hundred pounds per square inch. This investigation has resulted in 1 the development of psychrometer, 2 the development of a psychrometric equation for the helium-water vapor system, and 3 the development of a computer program which makes it possible to print out psychrometric charts for any ocean depth.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE