Burnup analysis for the pebble-bed fluoride-salt-cooled high-temperature reactor based on the energy-dependent elastic scattering cross-sectional model

Nuclear Science and Techniques - Tập 29 - Trang 1-8 - 2018
Zhi-Feng Li1,2, Jie-Jin Cai1, Qin Zeng1, Wen-Jie Zeng3
1School of Electric Power, South China University of Technology, Guangzhou, China
2School of Nuclear Engineering, Purdue University, West Lafayette, USA
3School of Nuclear Science and Technology, University of South China, Hengyang, China

Tóm tắt

To carry out accurate burnup calculations for a pebble-bed fluoride-salt-cooled high-temperature reactor, the energy-dependent cross-sectional model based on the Doppler broadening rejection correction method has been proposed to develop the energy-dependent elastic scattering cross-sectional model. In this study, the Monte Carlo continuous energy code PSG2/Serpent was used to examine the difference between the constant cross-sectional model and the energy-dependent cross-sectional model during burnup. For the cases analyzed in this study, numerical simulations show that the multiplication coefficient was improved by hundreds pcm and 239Pu concentration was improved by approximately 1–2% during burnup when the energy-dependent elastic scattering cross-sectional model is considered.

Tài liệu tham khảo

D.L. Zhang, L.M. Liu, M. Liu et al., Review of conceptual design and fundamental research of molten salt reactors in China. Int. J. Energy Res. 1, 1–15 (2018). https://doi.org/10.1002/er.3979

L.M. Liu, D.L. Zhang, Q. Lu et al., Preliminary neutronic and thermal-hydraulic analysis of a 2 MW Thorium-based molten salt reactor with solid fuel. Prog. Nucl. Energy 86, 1–10 (2016). https://doi.org/10.1016/j.pnucene.2015.09.011

C. Forsberg, The advanced high-temperature reactor: high-temperature fuel liquid salt coolant, liquid-metal-reactor plant. Prog. Nucl. Energy 47, 32–43 (2005). https://doi.org/10.1016/j.pnucene.2005.05.002

Z.M. Dai, Thorium molten salt reactor nuclear energy system (TMSR). Molten Salt React. Thorium Energy 1, 521–540 (2017). https://doi.org/10.1016/B978-0-08-101126-3.00017-8

J.J. Duderstadt, L.J. Hamilton, Nucl. React. Anal. (Wiley, New York, 1976), pp. 12–34

M. Ouisloumen, R. Sanchez, A model for neutron scattering off heavy isotopes that accounts for thermal agitation effects. Nucl. Sci. Eng. 107, 189–200 (1991). https://doi.org/10.13182/NSE89-186

X-5 Monte Carlo Team, MCNP A General Monte Carlo N-Particle Transport Code (Los Alamos National Laboratory, New Mexico, 2008), (pp. 10–25)

D.E. Cullen, C.R. Weisbin, Exact Doppler broadening of tabulated cross sections. Nucl. Sci. Eng. 60, 199–229 (1976). https://doi.org/10.13182/NSE76-1

D. Lee, K. Smith, J. Rhodes, The impact of 238U resonance elastic scattering approximations on thermal reactor Doppler reactivity. Ann. Nucl. Energy 36, 274–280 (2009). https://doi.org/10.1016/j.anucene.2008.11.026

R. Dagan, On the use of S(α, β) tables for nuclides with well pronounced resonances. Ann. Nucl. Energy 32, 367–377 (2005). https://doi.org/10.1016/j.anucene.2004.11.003

A. Zoia, E. Brun, C. Jouanne et al., Doppler broadening of neutron elastic scattering kernel in TRIPOLI-4. Ann. Nucl. Energy 54, 218–226 (2013). https://doi.org/10.1016/j.anucene.2012.11.023

T. Mori, Y. Nagaya, Comparison of resonance elastic scattering models newly implemented in MVP continuous-energy monte carlo code. J. Nucl. Sci. Technol. 46, 793–798 (2009). https://doi.org/10.1080/18811248.2007.9711587

J.A. Walsh, B. Forget, S.S. Kord, Accelerated sampling of the free gas resonance elastic scattering kernel. Ann. Nucl. Energy 69, 116–124 (2014). https://doi.org/10.1016/j.anucene.2014.01.017

T.H. Trumbull, T.E. Fieno, Effects of applying the Doppler broadened rejection correction method for LEU and MOX pin cell depletion calculations. Ann. Nucl. Energy 62, 184–194 (2013). https://doi.org/10.1016/j.anucene.2013.06.013

B. Becker, R. Dagan, C.H.M. Broeders, Improvement of the resonance scattering treatment in MCNP in view of HTR calculations. Ann. Nucl. Energy 36, 281–285 (2009). https://doi.org/10.1016/j.anucene.2008.12.009

E.E. Sunny, F.B. Brown, B.C. Kiedrowski et al., Temperature effects of resonance scattering for epithermal neutrons in mcnp, in: PHYSOR 2012, Knoxville, Tennessee, USA, April 15–20, 2012

Z.F. Li, L.Z. Cao, H.C. Wu et al., The impacts of thermal neutron scattering effect and resonance elastic scattering effect on FHRs. Ann. Nucl. Energy 97, 102–114 (2016). https://doi.org/10.1016/j.anucene.2016.07.014

R.D. Mosteller, Computational Benchmarks for the Doppler Reactivity Defect (Los Alamos National Laboratory, New Mexico, 2006), pp. 1–8

J. Leppänen, PSG2/PSG2/Serpent—a continuous-energy monte carlo reactor physics burnup calculation code (VTT Technical Research Centre, Finland, 2004), pp. 1–153

Z.F. Li, L.Z. Cao, H.C. Wu, The impacts of random effect and scattering effects on the neutronics analysis of the PB-FHR. Ann. Nucl. Energy 108, 163–171 (2017). https://doi.org/10.1016/j.anucene.2017.04.044

Z.F. Li, L.Z. Cao, H.C. Wu et al., On the improvements in neutronics analysis of the unit cell for the pebble-bed fluoride-salt-cooled high-temperature reactor. Prog. Nucl. Energy 93, 287–296 (2016). https://doi.org/10.1016/j.pnucene.2016.09.004

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Nuclear Science and Techniques

Tập 29

1-8

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