Integral cesium reservoir: Design and transient operation

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Description

An electrically heated thermionic converter has been designed built and successfully tested in air (Homer et.al., 1995). One of the unique features of this converter was an integral cesium reservoir thermally coupled to the emitter. The reservoir consisted of fifteen cesiated graphite pins located in pockets situated in the emitter lead with thermal coupling to the emitter, collector and the emitter terminal; there were no auxiliary electric heaters on the reservoir. Test results are described for conditions in which the input thermal power to the converter was ramped up and down between 50% and 100% of full power in times ... continued below

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7 p.

Creation Information

Smith, J.N. Jr.; Horner, M.H.; Begg, L.L. & Wrobleski, W.J. January 1, 1995.

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Description

An electrically heated thermionic converter has been designed built and successfully tested in air (Homer et.al., 1995). One of the unique features of this converter was an integral cesium reservoir thermally coupled to the emitter. The reservoir consisted of fifteen cesiated graphite pins located in pockets situated in the emitter lead with thermal coupling to the emitter, collector and the emitter terminal; there were no auxiliary electric heaters on the reservoir. Test results are described for conditions in which the input thermal power to the converter was ramped up and down between 50% and 100% of full power in times as short as 50 sec, with data acquisition occurring every 12 sec. During the ramps the emitter and collector temperature profiles. the reservoir temperature and the electric output into a fixed load resistor are reported. The converter responded promptly to the power ramps without excessive overshoot and with no tendency to develop instabilities. This is the rust demonstration of the performance of a cesium-graphite integral reservoir in a fast transient

Physical Description

7 p.

Notes

INIS; OSTI as DE95010152

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

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  • Other: DE95010152
  • Report No.: WAPD-T--3066
  • Report No.: CONF-950729--1
  • Grant Number: AC11-93PN38195
  • Office of Scientific & Technical Information Report Number: 57643
  • Archival Resource Key: ark:/67531/metadc689659

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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.

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  • January 1, 1995

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 20, 2015, 9:45 p.m.

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Smith, J.N. Jr.; Horner, M.H.; Begg, L.L. & Wrobleski, W.J. Integral cesium reservoir: Design and transient operation, article, January 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc689659/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.