NASA NTRS · 19850000249
Insulating Cryogenic Pipes With Frost
Abstract
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.
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Stephenson, J. G., Bova, J. A.. 1985-10-01. Insulating Cryogenic Pipes With Frost. https://ntrs.nasa.gov/citations/19850000249
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