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Proceedings Paper

Design and analysis of a liquid acquisition device and thermodynamic vent system for hydrogen in microgravity
Author(s): Mark D. Thomas; J. Clair Batty; David W. Plachta
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Paper Abstract

Solar Thermal Propulsion systems require long-term storage of liquid hydrogen. NASA's Hydrogen On-Orbit Storage System experiment was intended to demonstrate technologies critical to this concept, including a LAD and TVS. This paper describes the analysis and re-design of the TVS to function in the small (80 liter) dewar designed by the Space Dynamics Laboratory at Utah State University in conjunction with the NASA Lewis Research Center. The re-design uses the same approach as the NASA design for a larger system. The heat exchanger and Joule-Thomson device in particular are addressed. The design theory of a LAD is also presented.

Paper Details

Date Published: 17 September 1998
PDF: 12 pages
Proc. SPIE 3435, Cryogenic Optical Systems and Instruments VIII, (17 September 1998); doi: 10.1117/12.323727
Show Author Affiliations
Mark D. Thomas, Utah State Univ. (United States)
J. Clair Batty, Utah State Univ. (United States)
David W. Plachta, NASA Lewis Research Ctr. (United States)

Published in SPIE Proceedings Vol. 3435:
Cryogenic Optical Systems and Instruments VIII
James B. Heaney; Lawrence G. Burriesci, Editor(s)

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