Accession Number : AD0282891

Title :   THE TRAPPING EFFECT IN CRYOPUMPING

Corporate Author : ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AIR FORCE STATION TENN

Personal Author(s) : HAYGOOD,J.D. ; WANG,E.S.J.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : A theoretical analysis of the trapping phenomenon is presented, based on the assumptions of adsorption and solution of the trapped gas. Supporting experimental data are given at total pressures ranging from 1/100,000 to 1/100 mm Hg for the trapping of air by water condensate on a spherical cryosurface at liquid nitrogen temperature. (Author)

Descriptors :   *ADSORPTION, *DIFFUSION PUMPS, AIR, CRYOGENICS, LIQUEFIED GASES, NITROGEN, VACUUM APPARATUS, WATER VAPOR

Distribution Statement : APPROVED FOR PUBLIC RELEASE