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Cryogenic hydrogen-induced air-liquefaction technologiesExtensive use of a special advanced airbreathing propulsion archives data base, as well as direct contacts with individuals who were active in the field in previous years, a technical assessment of cryogenic hydrogen induced air liquefaction, as a prospective onboard aerospace vehicle process, was performed and documented in 1986. The resulting assessment report is summarized. Technical findings relating the status of air liquefaction technology are presented both as a singular technical area, and also as that of a cluster of collateral technical areas including: Compact lightweight cryogenic heat exchangers; Heat exchanger atmospheric constituents fouling alleviation; Para/ortho hydrogen shift conversion catalysts; Hydrogen turbine expanders, cryogenic air compressors and liquid air pumps; Hydrogen recycling using slush hydrogen as heat sinks; Liquid hydrogen/liquid air rocket type combustion devices; Air Collection and Enrichment System (ACES); and Technically related engine concepts.
Document ID
19910013846
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Escher, William J. D.
(NASA Headquarters Washington, DC United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1990
Publication Information
Publication: AGARD, Hypersonic Combined Cycle Propulsion
Subject Category
Aircraft Propulsion And Power
Accession Number
91N23159
Distribution Limits
Public
Copyright
Other
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