Requirements for maintaining cryogenic propellants during planetary surface staysPotential impacts on the planetary surface system infrastructure resulting from the use of liquid hydrogen and oxygen propellants for a stage and half lander are discussed. Particular attention is given to techniques which can be incorporated into the surface infrastructure and/or the vehicle to minimize the impact resulting from the use of these cryogens. Methods offered for reducing cryogenic propellant boiloff include modification of the lander to accommodate boiloff, incorporation of passive thermal control devices to the lander, addition of active propellant management, and use of alternative propellants.
Document ID
19910067758
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Riccio, Joseph R. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Schoenberg, Richard J. (NASA Johnson Space Center Houston, TX, United States)