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Recent Advances in Power Conversion and Heat Rejection Technology for Fission Surface PowerUnder the Exploration Technology Development Program, the National Aeronautics and Space Administration (NASA) and the Department of Energy (DOE) are jointly developing Fission Surface Power (FSP) technology for possible use in human missions to the Moon and Mars. A preliminary reference concept was generated to guide FSP technology development. The concept consists of a liquid-metal-cooled reactor, Stirling power conversion, and water heat rejection, with Brayton power conversion as a backup option. The FSP project has begun risk reduction activities on some key components with the eventual goal of conducting an end-to-end, non-nuclear, integrated system test. Several power conversion and heat rejection hardware prototypes have been built and tested. These include multi-kilowatt Stirling and Brayton power conversion units, titanium-water heat pipes, and composite radiator panels.
Document ID
Document Type
Conference Paper
Mason, Lee
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
July 1, 2010
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
Meeting Information
Nuclear and Emerging Technologies for Space (NETS-2009)(Atlanta, GA)
Funding Number(s)
WBS: WBS 463169.
Distribution Limits
Work of the US Gov. Public Use Permitted.
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