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April 16, 2026Nuclear Engineering and TechnologyOpen Access

Development and Application of a Coupled Point-Reactor and Multi-Channel Delayed Neutron Precursor Transport Model in Molten Salt Reactors

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Authors

SLShan-jie LyuShanghai Institute of Applied PhysicsGZGuifeng ZhuShanghai Institute of Applied PhysicsYZYang Zou

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Implication

Modeling delayed neutron precursor redistribution in molten salt reactors, indicating safety implications and flow effects.

Key Points

  • This research aims to develop a model for evaluating delayed neutron precursor behavior in molten salt reactors.
  • Developed a coupled point-reactor and multi-channel transport model for DNP.
  • Incorporated shape functions and adjoint fluxes to account for spatial neutron importance.
  • Validated the model using data from the Molten Salt Reactor Experiment (MSRE).
  • Simulated flow reactivity changes within 5 pcm of measured changes.
  • Identified significant effects of precursor residence time on transient reactivity during pump start-up.

Cite This Study

Lyu et al. (2026) studied this question.

synapsesocial.com/papers/69e07bc12f7e8953b7cbd6e1https://doi.org/10.1016/j.net.2026.104347
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Also Consider

Synapse has enriched one closely related paper. Consider it for comparative context:

  1. 1Comparison of spatial dynamics and point kinetics approaches in multiphysics modeling of the molten salt reactor experiment2025 · 9 citations