Accession Number:

AD0681164

Title:

WATER VAPOR REMOVAL SYSTEM.

Descriptive Note:

Final rept. 15 Nov 65-15 Mar 68,

Corporate Author:

LITTLE (ARTHUR D) INC CAMBRIDGE MASS

Report Date:

1968-10-01

Pagination or Media Count:

101.0

Abstract:

An investigation has been undertaken of a novel method for the dehumidification of air that would be of particular utility in manned space enclosures. The method relies on the unique permeation behavior of gas vapor mixtures through microporous membranes under a pressure gradient. Under appropriate conditions a microporous membrane can become virtually semipermeable to the vapor component water of a gas-vapor mixture humid air. A search was made for the most suitable microporous membrane for this purpose. The fundamental characteristics of the permeation process were studied for selected membrane materials. Prototype dehumidification units were then constructed of the best membrane material, a porous silica glass, and tested. A prototype approximating a one-man capacity was submitted for evaluation. Author

Subject Categories:

  • Manned Spacecraft
  • Biomedical Instrumentation and Bioengineering
  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE