Development of No-Vent™ liquid hydrogen storage system for space applications |
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Authors: | Mark S. Haberbusch Chinh T. Nguyen Robert J. Stochl Terry Y. Hui |
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Affiliation: | Sierra Lobo, Inc., 11401 Hoover Road, Milan, OH 44846, United States |
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Abstract: | A number of technological advances required to store and maintain normal-boiling-point and densified cryogenic liquids, including liquid hydrogen, under zero boil-off conditions in-space, for long periods of time, have been developed. These technologies include (1) thermally optimized compact cryogen storage systems that reduce environmental heat leak to the lowest-temperature cryogen, which minimizes cryocooler size and input power, and (2) actively-cooled shields that surround the storage systems and intercept heat leak. The processes and tools used to develop these technologies are discussed. A zero boil-off liquid hydrogen storage system technology demonstrator for validating the actively-cooled shield technology is presented. |
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Keywords: | Hydrogen (B) Oxygen (B) Pulse tube (E) Cryostats (F) Space cryogenics (F) |
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