Assessment of transuranics stabilization in PWRs

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The stabilization of transuranics (TRU) in a PWR fuel cycle was evaluated for the CORAIL assembly. Alternative assembly designs (a highly moderated and modified CORAIL-TRU assembly and a homogeneous Thorium-TRU assembly) were also investigated to assess the potential of obtaining a near-zero TRU mass balance (i.e., the net TRU production per assembly) and low power peaking factor. The radiotoxicity of the nuclear waste sent to the repository environment and the impact of TRU stabilization on the future TRU stockpile were also evaluated. Assembly level mass flow analyses have shown that TRU mass balances in the range of 0.2 to 1.4 ... continued below

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Kim, T. K.; Stillman, J. A.; Taiwo, T. A. & Hill, R. N. July 16, 2002.

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The stabilization of transuranics (TRU) in a PWR fuel cycle was evaluated for the CORAIL assembly. Alternative assembly designs (a highly moderated and modified CORAIL-TRU assembly and a homogeneous Thorium-TRU assembly) were also investigated to assess the potential of obtaining a near-zero TRU mass balance (i.e., the net TRU production per assembly) and low power peaking factor. The radiotoxicity of the nuclear waste sent to the repository environment and the impact of TRU stabilization on the future TRU stockpile were also evaluated. Assembly level mass flow analyses have shown that TRU mass balances in the range of 0.2 to 1.4 kg/assembly are achievable within 7 recycles of the TRU, compared with 6.5 kg/assembly for a reference UO{sub 2} assembly. The study also revealed that the radiotoxicity of the repository waste generated by these TRU-containing assemblies at 10 years after disposal is roughly half that of a reference UO{sub 2} assembly; furthermore, the radiotoxicity falls below that of natural uranium ore after about 500 years because only a small fraction of the TRU (0.1%) is passed to the waste repository. Finally, the future TRU stockpile could be reduced by implementation of TRU multi-recycling in the CORAIL or alternative assemblies in a current-generation PWR core.

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  • International Conference on the New Frontiers of Nuclear Technology: Reactor Physics, Safety and High Performance Computing, Seoul (KR), 10/07/2002--10/10/2002

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  • Report No.: ANL/RAE/CP-108224
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 803895
  • Archival Resource Key: ark:/67531/metadc742838

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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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  • July 16, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 11, 2016, 1:19 p.m.

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Kim, T. K.; Stillman, J. A.; Taiwo, T. A. & Hill, R. N. Assessment of transuranics stabilization in PWRs, article, July 16, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc742838/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.