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Thermionic energy conversion technology - Present and futureAerospace and terrestrial applications of thermionic direct energy conversion and advances in direct energy conversion (DEC) technology are surveyed. Electrode materials, the cesium plasma drop (the difference between the barrier index and the collector work function), DEC voltage/current characteristics, conversion efficiency, and operating temperatures are discussed. Attention is centered on nuclear reactor system thermionic DEC devices, for in-core or out-of-core operation. Thermionic fuel elements, the radiation shield, power conditions, and a waste heat rejection system are considered among the thermionic DEC system components. Terrestrial applications include topping power systems in fossil fuel and solar power generation.
Document ID
19770041066
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Shimada, K.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Morris, J. F.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1977
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 77-500
Meeting Information
Meeting: Conference on the Future of Aerospace Power Systems
Location: St. Louis, MO
Start Date: March 1, 1977
End Date: March 3, 1977
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
77A23918
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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