Phenomena identification and ranking table exercise for thorium based molten salt reactor-solid fuel design

  • Xiaojing LiuEmail author
  • Qi Wang
  • Zhaozhong He
  • Kun Chen
  • Xu Cheng
Research Article


Thorium based molten salt reactor-solid fuel (TMSR-SF) design is an innovative reactor concept that uses high-temperature tristructural-isotropic (TRISO) fuel with a low-pressure liquid salt coolant. In anticipation of getting licensed applications for TMSR-SF in the future, it is necessary to fully understand the significant features and phenomena of TMSR-SF design, as well as its transient behavior during accidents. In this paper, the safety-relevant phenomena, importance, and knowledge base were assessed for the selected events and the transient of TMSR-SF during station blackout scenario is simulated based on RELAP/SCDAPSIM Mod 4.0.

The phenomena having significant impact but with limited knowledge of their history are core coolant bypass flows, outlet plenum flow distribution, and intermediate heat exchanger (IHX) over/under cooling transients. Some thermal hydraulic parameters during the station blackout scenario are also discussed.


phenomena identification and ranking table (PIRT) thorium based molten salt reactor-solid fuel (TMSR-SF) safety analysis RELAP/SCDAPSIM 


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This work was supported by Shanghai Institute of Applied Physics.


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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Xiaojing Liu
    • 1
    Email author
  • Qi Wang
    • 1
  • Zhaozhong He
    • 2
  • Kun Chen
    • 2
  • Xu Cheng
    • 1
  1. 1.School of Nuclear Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghaiChina

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