Other
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991nps..reptq....p&link_type=abstract
M.S. Thesis Naval Postgraduate School, Monterey, CA.
Other
Air Purification, Carbon Dioxide Removal, Cost Analysis, Electrochemical Cells, Electrolytic Cells, Mars Atmosphere, Oxygen Production, Life Support Systems, Mars (Planet), Mars Environment, Oxides, Oxygen Supply Equipment
Scientific paper
This thesis is focused toward the Mars atmosphere and its potential resource use for life support systems which provide oxygen to astronauts during all phases of a mission. The weight required to send numerous oxygen tanks to Mars would drastically increase the cost of the mission and might even take up space in the rocket for other needed items on Mars. The solution to this problem is to design a processor that will convert Martian resources to oxygen. Utilization of resources to support life in the Martian environment is performed through the development of life support systems. Life support systems which provide oxygen belong to the Air Revitalization functional area of the Environmental Control Life Support System for Space Station Freedom which will be analyzed in this thesis. Since the Martian atmosphere is primarily composed of carbon dioxide, this thesis will look at three oxygen processors under development which will convert carbon dioxide to oxygen. These three candidate technologies are the Electrochemical Oxide Cell, Sabatier, and Bosch carbon dioxide reductors. The oxide cell is a self-containing carbon dioxide to oxygen system, but the other two produce water. This suggests that other subsystems must be attached to the output to produce oxygen from water. A trade study is performed using parameters such as power, weight, mass, etc. in order to find the most suitable oxygen processor for the Martian atmosphere. The trade study suggests that the electrolyte oxide cell is the most effective alternative.
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