Other
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ulpr.nasa.....i&link_type=abstract
In its NASA Space Engineering Research Center for Utilization of Local Planetary Resources 12 p (SEE N91-24365 16-25)
Other
Carbon Dioxide, Industrial Plants, Mars (Planet), Mars Atmosphere, Oxygen Production, Plant Design, Thermal Analysis, Carbon Monoxide, Fuel Production, Life Support Systems, Spacecraft Propulsion
Scientific paper
The objective is to optimally design the thermal components of a system that uses carbon dioxide (CO2) from the Martian atmosphere to produce oxygen (O2) for spacecraft propulsion and/or life-support. Carbon dioxide is thermally decomposed into carbon monoxide (CO) and O2 followed by the electrochemical separation of O2. The design of the overall system and its various individual components depends on, among other things, the fraction of the stoichiometric yield of O2 that can be realized in the system and the temperature of operation of the electrochemical separation membrane. The analysis indicates that a substantial reduction could be obtained in the mass and power requirements of the system if the unreacted CO2 were to be recycled. The concepts of an optimum temperature of the zirconia cell and impracticality of plant operation at low cell efficiencies are also discussed. The design of the thermal equipment is such that the mass and power requirements of the individual components and of the overall system are optimized.
Iyer Venkatesh A.
Sridhar K. R.
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