Design and operation of a thermionic converter in air

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Description

An electrically heated thermionic converter has been designed, built and successfully tested in air. Several unique features were incorporated in this converter: an integral cesium reservoir, innovative ceramic-to-metal seals, a heat rejection system coupling the collector to a low temperature heat sink and an innovative cylindrical heater filament. The converter was operated for extended periods of time with the emitter at about 1900 K. the collector at about 700 K, and a power density of over 2 w(e)/sq. cm. Input power transients were run between 50% and 100% thermal power, at up to 1% per second, without instabilities in performance.

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7 p.

Creation Information

Horner, M.H.; Begg, L.L.; Smith, J.N. Jr.; Geller, C.B. & Kallnowski, J.E. January 1, 1995.

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Description

An electrically heated thermionic converter has been designed, built and successfully tested in air. Several unique features were incorporated in this converter: an integral cesium reservoir, innovative ceramic-to-metal seals, a heat rejection system coupling the collector to a low temperature heat sink and an innovative cylindrical heater filament. The converter was operated for extended periods of time with the emitter at about 1900 K. the collector at about 700 K, and a power density of over 2 w(e)/sq. cm. Input power transients were run between 50% and 100% thermal power, at up to 1% per second, without instabilities in performance.

Physical Description

7 p.

Notes

INIS; OSTI as DE95010151

Source

  • 30. intersociety energy conversion engineering conference, Orlando, FL (United States), 30 Jul - 5 Aug 1995

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  • Other: DE95010151
  • Report No.: WAPD-T--3062
  • Report No.: CONF-950729--2
  • Grant Number: AC11-93PN38195
  • Office of Scientific & Technical Information Report Number: 57642
  • Archival Resource Key: ark:/67531/metadc698163

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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, 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 7, 2015, noon

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Horner, M.H.; Begg, L.L.; Smith, J.N. Jr.; Geller, C.B. & Kallnowski, J.E. Design and operation of a thermionic converter in air, article, January 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc698163/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.