Interim report on core physics and fuel cycle analysis of the pebble bed reactor power plant concept

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Calculations were made to predict the performance of a pebble bed reactor operated in a mode to produce fissile fuel (high conversion or breeding). Both a one pebble design and a design involving large primary feed pebbles and small fertile pebbles were considered. A relatively short residence time of the primary pebbles loaded with /sup 233/U fuel was found to be necessary to achieve a high breeding ratio, but this leads to relatively high fuel costs. A high fissile inventory is associated with a low C/Th ratio and a high thorium loading, causing the doubling time to be long, even ... continued below

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Vondy, D.R. December 1, 1977.

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Calculations were made to predict the performance of a pebble bed reactor operated in a mode to produce fissile fuel (high conversion or breeding). Both a one pebble design and a design involving large primary feed pebbles and small fertile pebbles were considered. A relatively short residence time of the primary pebbles loaded with /sup 233/U fuel was found to be necessary to achieve a high breeding ratio, but this leads to relatively high fuel costs. A high fissile inventory is associated with a low C/Th ratio and a high thorium loading, causing the doubling time to be long, even though the breeding ratio is high, and the fuel cost of electrical product to be high. Production of /sup 233/U fuel from /sup 235/U feed was studied and performances of the converter and breeder reactor concepts were examined varying the key parameters.

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Dep. NTIS, PC A04/MF A01.

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  • Report No.: ORNL/TM-6142
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/5289736 | External Link
  • Office of Scientific & Technical Information Report Number: 5289736
  • Archival Resource Key: ark:/67531/metadc1064557

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Office of Scientific & Technical Information Technical Reports

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  • December 1, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 23, 2018, 6:44 p.m.

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Vondy, D.R. Interim report on core physics and fuel cycle analysis of the pebble bed reactor power plant concept, report, December 1, 1977; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1064557/: accessed June 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.