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Mini-cavity plasma core reactors for dual-mode space nuclear power/propulsion systemsA mini-cavity plasma core reactor is investigated for potential use in a dual-mode space power and propulsion system. In the propulsive mode, hydrogen propellant is injected radially inward through the reactor solid regions and into the cavity. The propellant is heated by both solid driver fuel elements surrounding the cavity and uranium plasma before it is exhausted out the nozzle. The propellant only removes a fraction of the driver power, the remainder is transferred by a coolant fluid to a power conversion system, which incorporates a radiator for heat rejection. Neutronic feasibility of dual mode operation and smaller reactor sizes than those previously investigated are shown to be possible. A heat transfer analysis of one such reactor shows that the dual-mode concept is applicable when power generation mode thermal power levels are within the same order of magnitude as direct thrust mode thermal power levels.
Document ID
19780018919
Acquisition Source
Legacy CDMS
Document Type
Thesis/Dissertation
Authors
Chow, S.
(Princeton Univ. NJ, United States)
Date Acquired
August 9, 2013
Publication Date
September 1, 1976
Publication Information
Publication: Partially Ionized Plasmas, Including the 3rd Symp. on Uranium Plasmas
Subject Category
Spacecraft Propulsion And Power
Accession Number
78N26862
Funding Number(s)
CONTRACT_GRANT: NGR-31-001-328
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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