Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Neutronic investigation of waste transmutation option without partitioning and transmutation in a fusion-fission hybrid system

  • Received : 2018.01.10
  • Accepted : 2018.06.07
  • Published : 2018.10.25
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Abstract

A feasibility of reusing option of spent nuclear fuel in a fusion-fission hybrid system without partitioning was checked as an alternative option of pyro-processing with critical reactor system. Neutronic study was performed with MCNP 6.1 for this option, direct reuse of spent PWR fuel (DRUP). Various options with DRUP fuel were compared with the reference design concept; transmutation purpose blanket with (U-TRU)Zr fuel loading connected with pyro-processing. Performance parameters to be compared are transmutation performance of transuranic (TRU) nuclides, required fusion power and tritium breeding ratio (TBR). When blanket part is loaded only with DRUP, initial $k_{eff}$ level becomes too low to maintain a practical subcritical system, increasing the required fusion power. In this case, production rate of TRU nuclides exceeds the incineration rate. Design optimization is done for combining DRUP fuel with (U-TRU)Zr fuel. Reactivity swing is reduced to about 2447 pcm through fissile breeding compared to (U-TRU)Zr fuel option. Therefore, a required fusion power is reduced and tritium breeding performance is improved. However, transmutation performance with TRU nuclides especially $^{241}Am$ is degraded because of softening effect of spectrum. It is known that partitioning and transmutation should be accompanied with fusion-fission hybrid system for the effective transmutation of TRU.

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References

  1. E.M. Gonzalez-Romero, Impact of partitioning and transmutation on the high level waste management, Nucl. Eng. Des. 241 (2011) 3436-3444. https://doi.org/10.1016/j.nucengdes.2011.03.030
  2. A. Stanculescu, Accelerator driven systems (ADSs) for nuclear transmutation, Ann. Nucl. Energy 62 (2013) 607-612. https://doi.org/10.1016/j.anucene.2013.02.006
  3. T. Takeda, Minor actinides transmutation performance in a fast reactor, Ann. Nucl. Energy 95 (2016) 48-53. https://doi.org/10.1016/j.anucene.2016.04.031
  4. W.M. Stacey, et al., A TRU-Zr metal-fuel sodium-cooled fast subcritical advanced burner Reactor, Nucl. Technol. 162 (2008) 53-79. https://doi.org/10.13182/NT08-A3933
  5. W.M. Stacey, Capabilities of a DT tokamak fusion neutron source for driving a spent nuclear fuel transmutation reactor, Nucl. Fusion 1 (2001) 135-154.
  6. T.S. Muhammad, et al., Conceptual design study Hyb-WT as fusion-fission hybrid rector for waste transmutation, Ann. Nucl. Energy 65 (2014) 299-306. https://doi.org/10.1016/j.anucene.2013.11.020
  7. T.S. Muhammad, et al., Optimization of Surrounding Reflector for Hyb-wt, Korea Nuclear Society Autumn Meeting, Gyeongju, Korea, October 24-25, 2013.
  8. S.H. Hong, et al., Transmutation performance analysis on coolant options in a hybrid reactor system design for high level waste incineration, Fusion Eng. Des. 100 (2015) 550-559. https://doi.org/10.1016/j.fusengdes.2015.08.003
  9. T.S. Muhammad, et al., Physical investigation for neutron consumption and multiplication in fusion-fission hybrid test blanket module, Fusion Eng. Des. 89 (2014) 2679-2684. https://doi.org/10.1016/j.fusengdes.2014.07.004
  10. M.S. Yang, et al., The status and prospect of DUPIC fuel technology, Nuclear Eng. Technol. 38 (2006) 359-374.
  11. M.S. Yang, et al., A Study on the Direct Use of Spent PWR Fuel in CANDU Reactors (DUPIC) : Irradiation Test and Performance Evaluation of DUPIC Fuel, KAERI/RR-2236/2001, Korea Atomic Energy Research Institute, 2002.

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