Accession Number : AD0643326

Title :   A STUDY OF WATER AND CARBON DIOXIDE PRECIPITATION TECHNIQUE USING THERMAL RADIATION PRINCIPLES.

Descriptive Note : Final rept. 1 Jul 65-20 Jun 66,

Corporate Author : DYNATECH CORP CAMBRIDGE MASS

Personal Author(s) : Bonneville,Jacques M.

Report Date : AUG 1966

Pagination or Media Count : 76

Abstract : Various freeze-out techniques, conceived for controlling carbon dioxide and water vapor in a manned space enclosure in earth orbit, were investigated, analyzed and evaluated. Carbon dioxide elimination presents a much greater problem than does water vapor elimination. The system selected has the following main characteristics: a separate air loop for each vapor; simultaneous sublimation and precipitation in each loop; the freeze-out plate, sublimator, radiator, and second stage heat exchanges in the carbon dioxide loop, are integral and outside the cabin; in an equatorial orbit, the radiator is sun-shielded by a fixed-attitude, open-ended cover. (Author)

Descriptors :   (*CONTROLLED ATMOSPHERES, IMPURITIES), (*WATER VAPOR, CONTROLLED ATMOSPHERES), (*CARBON DIOXIDE, CONTROLLED ATMOSPHERES), SPACECRAFT CABINS, SUBLIMATION, CHEMICAL PRECIPITATION, FREEZING, HEAT TRANSFER, ORBITS, VAPORS, HEAT EXCHANGERS, THERMODYNAMICS

Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Life Support Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE