Advanced thermionic energy conversion. Joint highlights and status report, July-September 1979

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The DOE portion of the effort is directed primarily toward terrestrial applications of thermionic energy converters suitable for use with fossil fueled heat sources in power plants. The NASA program is directed at establishing the technical feasibility of an advanced, light-weight, long-life thermionic conversion system compatible with a remote nuclear or solar heat source. The principal application foreseen at this time is in nuclear electric propulsion (NEP) missions in the mid-1990's. Significant accomplishments for the DOE program include: (1) successfully operating a thermionic converter using a cold insulator seal (Plexiglass and Viton); (2) completed fabrication and testing of SPC-9, a … continued below

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Creator: Unknown. January 1, 1979.

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The DOE portion of the effort is directed primarily toward terrestrial applications of thermionic energy converters suitable for use with fossil fueled heat sources in power plants. The NASA program is directed at establishing the technical feasibility of an advanced, light-weight, long-life thermionic conversion system compatible with a remote nuclear or solar heat source. The principal application foreseen at this time is in nuclear electric propulsion (NEP) missions in the mid-1990's. Significant accomplishments for the DOE program include: (1) successfully operating a thermionic converter using a cold insulator seal (Plexiglass and Viton); (2) completed fabrication and testing of SPC-9, a reference planar converter with smooth molybdenum electrodes; (3) created a shooting type analytical ignited mode converter computer model; (4) projected the operating conditions needed to achieve advanced converter performance with a thick cesium oxide collector; and (5) invented a cellular ceramic heat exchanger for obtaining high radiant heat flux from a hot gas. Accomplishments for the NASA program include: (1) achieved over 3100 hours of operation with the cylindrical converter JPL-5 (STR/STR); (2) provided guidelines for definition of optimum lead characteristics in the JPL NEP computer program; and (3) performed a preliminary NEP optimization study which suggests a 400 kWe system with a specific mass of 26 kg/kWe is possible with present converter performance (V/sub B/ = 2.0). Details are presented. (WHK)

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NTIS, PC A07/MF A01.

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  • Report No.: DOE/ET/11293-T3
  • Report No.: COO-2263-16
  • Grant Number: AC02-76ET11293
  • Office of Scientific & Technical Information Report Number: 6512245
  • Archival Resource Key: ark:/67531/metadc1203214

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1979

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  • July 5, 2018, 11:11 p.m.

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  • July 16, 2018, 5:42 p.m.

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Advanced thermionic energy conversion. Joint highlights and status report, July-September 1979, report, January 1, 1979; United States. (https://digital.library.unt.edu/ark:/67531/metadc1203214/: accessed July 16, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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