Crystallized water vapor fills voids in pipe insulation. Small, carefully controlled amount of water vapor introduced into dry nitrogen gas before it enters aft fuselage. Vapor freezes on pipes, filling cracks in insulation. Ice prevents gaseous nitrogen from condensing on pipes and dripping on structure, in addition to helping to insulate all parts. Industrial applications include large refrigeration plants or facilities that use cryogenic liquids.
Insulating Cryogenic Pipes With Frost
NASA Tech Briefs ; 9 , 2
1985-10-01
Miscellaneous
No indication
English
Elevated railway and frost protection of their water pipes
Engineering Index Backfile | 1894
British Library Conference Proceedings | 1994
|Cryogenic heat pipes in spacecraft applications
AIAA | 1986
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