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Component and System Sensitivity Considerations for Design of a Lunar ISRU Oxygen Production PlantComponent and system sensitivities of some design parameters of ISRU system components are analyzed. The differences between terrestrial and lunar excavation are discussed, and a qualitative comparison of large and small excavators is started. The effect of excavator size on the size of the ISRU plant's regolith hoppers is presented. Optimum operating conditions of both hydrogen and carbothermal reduction reactors are explored using recently developed analytical models. Design parameters such as batch size, conversion fraction, and maximum particle size are considered for a hydrogen reduction reactor while batch size, conversion fraction, number of melt zones, and methane flow rate are considered for a carbothermal reduction reactor. For both reactor types the effect of reactor operation on system energy and regolith delivery requirements is presented.
Document ID
20120012846
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Linne, Diane L. (NASA Glenn Research Center Cleveland, OH, United States)
Gokoglu, Suleyman (NASA Glenn Research Center Cleveland, OH, United States)
Hegde, Uday G. (National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Balasubramaniam, Ramaswamy (National Center for Space Exploration Research on Fluids and Combustion Cleveland, OH, United States)
Santiago-Maldonado, Edgardo (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Date Acquired
August 26, 2013
Publication Date
January 5, 2009
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
E-18256
Meeting Information
Meeting: 47th AIAA Aerospace Sciences Meeting
Location: Orlando, FL
Country: United States
Start Date: January 5, 2009
End Date: January 8, 2009
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
WBS: WBS 387498.04.01.05.01.03
Distribution Limits
Public
Copyright
Public Use Permitted.

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