A comparison of equilibrium and non-equilibrium cycle methods for Na-cooled ATW system.

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An equilibrium cycle method, embodied in the REBUS-3[1] code system, has generally been used in conventional fast reactor design activities. The equilibrium cycle method provides an efficient approach for modeling reactor system, compared to the more traditional non-equilibrium cycle fuel management calculation approach. Recently, the equilibrium analysis method has been utilized for designing Accelerator Transmutation of Waste (ATW)[2,3,4] cores, in which a scattered-reloading fuel management scheme is used. Compared with the conventional fast reactors, the ATW core is significantly different in several aspects since its main mission is to incinerate the transuranic (TRU) fuels. The high burnup non-fertile fuel has ... continued below

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4 pages

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Kim, Y.; Hill, R. N. & Taiwo, T. A. March 30, 2002.

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An equilibrium cycle method, embodied in the REBUS-3[1] code system, has generally been used in conventional fast reactor design activities. The equilibrium cycle method provides an efficient approach for modeling reactor system, compared to the more traditional non-equilibrium cycle fuel management calculation approach. Recently, the equilibrium analysis method has been utilized for designing Accelerator Transmutation of Waste (ATW)[2,3,4] cores, in which a scattered-reloading fuel management scheme is used. Compared with the conventional fast reactors, the ATW core is significantly different in several aspects since its main mission is to incinerate the transuranic (TRU) fuels. The high burnup non-fertile fuel has large variations in composition and reactivity during its lifetime. Furthermore, a relatively short cycle length is utilized in the ATW design to limit the potentially large reactivity swing over a cycle, and consequently 7 or 8-batch fuel management is usually assumed for a high fuel burnup. The validity of the equilibrium analysis method for the ATW core, therefore, needed to be verified. The main objective of this paper is to assess the validity of the equilibrium analysis method for a Na-cooled ATW core[4], which is an alternative core design of the ATW system under development.

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4 pages

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  • American Nuclear Society 2002 Annual Meeting, Hollywood, FL (US), 06/09/2002--06/13/2002

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  • Report No.: ANL/RAE/CP-107170
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 795824
  • Archival Resource Key: ark:/67531/metadc742061

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  • March 30, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 11, 2016, 5:04 p.m.

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Kim, Y.; Hill, R. N. & Taiwo, T. A. A comparison of equilibrium and non-equilibrium cycle methods for Na-cooled ATW system., article, March 30, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc742061/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.