A method of reliquefying from 12 to 19% of the nitrogen exhaust gas from a cryogenic wind tunnel has been developed. Technical feasibility and cost effectiveness of the system depends on performance of an innovative positive displacement expander which requires scale model testing to confirm design studies. The existing cryogenic system at the 0.3-m transonic cryogenic tunnel has been surveyed and extensive upgrades proposed. Upgrades are generally cost effective and may be implemented immediately since they are based on established technology.
Cost effective use of liquid nitrogen in cryogenic wind tunnels
1987-04-01
Report
No indication
English
NTRS | 1989
|NTIS | 1980
Tema Archive | 1980
Introduction to cryogenic wind tunnels
NTRS | 1985
|Introduction to Cryogenic Wind Tunnels
NTIS | 1985
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