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Mini gas-core propulsion conceptA propulsion concept is presented that can achieve specific impulses of 1000 to 2000 seconds for thrust levels on the order of 100 pounds (445 N) and maintain a small (1.22 m) reactor diameter for a total power-plant weight of approximately 10,000 kg. The concept combines a small (0.61 m) diameter spherical gas core centrally located, followed by a moderator (BeO-15 cm), surrounded by a driver fuel region and contained in a pressure vessel (ID of 1.22 m). Best results (i.e., highest ratio of cavity power to total power) occur with U-233 isotope as the fuel in both the cavity and the driver, although U-235 can also be used. Concept may also have application in the testing of a gas-core reactor and MHD devices and in high temperature-pressure materials research.
Document ID
19720004951
Document Type
Conference Paper
Authors
Hyland, R. E. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 2, 2013
Publication Date
January 1, 1971
Subject Category
NUCLEAR ENGINEERING
Report/Patent Number
NASA-TM-X-67958
E-6665
Meeting Information
Winter Meeting of the Am. Nucl. Soc.(Miami, FL)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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