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Cryogenic propellant liquefaction and storage for a precursor to a human Mars mission

✍ Scribed by P. Mueller; T. Durrant

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
290 KB
Volume
39
Category
Article
ISSN
0011-2275

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✦ Synopsis

An analysis of cryogenic liquefaction and storage methods for in-situ produced propellants (oxygen and methane) on Mars is presented. The application is to a subscale precursor sample return mission, intended to demonstrate critical cryogenic technologies prior to a human mission. A heat transfer analysis is included, resulting in predicted cryogenic tank surface temperatures and heat leak values for dierent conditions. Insulation thickness is traded o against cryocooler capacity to ®nd optimum combinations for various insulation con®gurations, including multilayer insulation and microspheres. Microsphere insulation is shown to have promise, and further development is recommended.

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