Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Design and dynamic simulation of a molten salt THS coupled to SFR

  • Received : 2023.06.07
  • Accepted : 2023.11.08
  • Published : 2024.04.25
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Abstract

With the increasing ratio of renewables in the grid, a low-carbon and stable base load source that also is capable of load tracking is in demand. Sodium cooled fast reactors (SFRs) coupled to thermal heat storage system (THS) is a strong candidate for the need. This research focuses on the designing and performance validation of a two-tank THS based on molten salt to integrate with a 280 MWth sodium cooled fast reactor. Designing of the THS includes the vital component, sodium-to-salt heat exchanger which is a technology gap that needs to be filled, and designing and parameter selection of the tanks and related pumps. Modeling of the designed THS is conducted followed by the description of operation strategies and control logics of the THS. Finally, the dynamic simulation of the designed THS is conducted based on Fortran. Results show, the proposed power system meets the need of the design requirements to store heat for 18 h during a day and provide 500 MWth for peak demand for the rest of the day.

Keywords

Acknowledgement

This research is founded by the China Institute of Atomic Energy Young Talent Found (Project No. 22054).

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