Accession Number : AD0453440

Title :   CRYOPUMPING OF CO2 NOZZLE FLOW BY 77 K CRYOSURFACE,

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

Personal Author(s) : McCullough,B. A. ; Wang,E. S. J.

Report Date : JAN 1965

Pagination or Media Count : 19

Abstract : Tests were conducted in an 8.25-in.-diam by 44.50-in. chamber utilizing 77 K walls to remove CO2 gas flow. The CO2 gas temperature was varied from ambient to 1680 F. A method was devised to estimate the capture coefficient of high-temperature CO2, and the relationship was confirmed for various gas temperatures. Trapping of N2 by CO2 gas flow was accomplished at a ratio of 1 N2 molecule to 100,000 CO2 molecules. A significant amount of ejector action was observed for CO2. (Author)

Descriptors :   (*CRYOPUMPING, CARBON DIOXIDE), (*CRYOGENICS, NOZZLE GAS FLOW), (*NOZZLE GAS FLOW, CRYOPUMPING), GAS FLOW, HIGH TEMPERATURE, LOW TEMPERATURE, TEST EQUIPMENT, SURFACES

Distribution Statement : APPROVED FOR PUBLIC RELEASE