Abstract

The design of a nuclear reactor has been proposed with the intention of providing 15 kW of electricity on the surface of Mars. The reactor uses High Assay Low Enriched Uranium in the form of tri-structural isotropic particle fuel embedded in a cylindrical compact.Initially,a study on the geometrical design of the reactor was undertaken to achieve criticality using Monte-Carlo simulations.Next,heat loss from the surface of the reactor to the Martian atmosphere was investigated by solving k-omega SST, surface to surface and density difference model via finite volume method for different surface coating and weather conditions.Further,three-dimensional heat conduction equations were solved toanalyzethe temperature distribution inside the reactor.Finally, theefficiency of the heat pipe, radiator dimensions and electric output of the reactor were calculated.

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