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A Summary of the Slush Hydrogen Technology Program for the National Aero-Space Plane

Author
Mcnelis, Nancy B.
Published
Apr 1, 1995.
Physical Description
1 electronic document
Additional Creators
Kudlac, Maureen T., Tomsik, Thomas M., Haberbusch, Mark S., Moran, Matthew E., Whalen, Margaret V., and Hardy, Terry L.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Slush hydrogen, a mixture of solid and liquid hydrogen, offers advantages of higher density (16 percent) and higher heat capacity (18 percent) than normal boiling point hydrogen. The combination of increased density and heat capacity of slush hydrogen provided a potential to decrease the gross takeoff weight of the National Aero-Space Plane (NASP) and therefore slush hydrogen was selected as the propellant. However, no large-scale data was available on the production, transfer and tank pressure control characteristics required to use slush hydrogen as a fuel. Extensive testing has been performed at the NASA Lewis Research Center K-Site and Small Scale Hydrogen Test Facility between 1990 and the present to provide a database for the use of slush hydrogen. This paper summarizes the results of this testing.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19950017766.
Accession ID: 95N24186.
AIAA PAPER 95-6056.
NASA-TM-106863.
E-9469.
NAS 1.15:106863.
Hypersonics Technologies Conference; 3-7 Apr. 1995; Chattanooga, TN; United States.
Terms of Use and Reproduction
Copyright, Distribution as joint owner in the copyright.
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