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Cryogenic hydrogen-induced air liquefaction technologiesExtensively utilizing a special advanced airbreathing propulsion archives database, 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. The resulting assessment report is summarized. Technical findings are presented relating the status of air liquefaction technology, both as a singular technical area, and also 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 sink; liquid hydrogen/liquid air rocket-type combustion devices; air collection and enrichment systems (ACES); and technically related engine concepts.
Document ID
19910014924
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
October 1, 1990
Publication Information
Publication: Johns Hopkins Univ., The 1990 JANNAF Propulsion Meeting, Volume 2
Subject Category
Spacecraft Propulsion And Power
Meeting Information
Meeting: AGARD Symposium of the Propulsion and Energetics Panel on Hypersonic Combined Cycle Propulsion
Location: Madrid
Country: Spain
Start Date: May 28, 1990
End Date: June 1, 1990
Accession Number
91N24237
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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