Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Hydraulic performance and flow resistance tests of various hydraulic parts for optimal design of a reactor coolant pump for a small modular reactor

  • Byeonggeon Bae (Korea Atomic Energy Research Institute) ;
  • Jaeho Jung (School of Mechanical Engineering, Chungbuk National University) ;
  • Je Yong Yu (Korea Atomic Energy Research Institute)
  • Received : 2022.06.10
  • Accepted : 2022.10.30
  • Published : 2023.03.25
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Abstract

Hydraulic performance and flow resistance tests were performed to confirm the main parameters of the hydraulic instrumentation that can affect the pump performance of the reactor coolant pump. The flow resistance test offers important experimental data, which are necessary to predict the behavior of the primary coolant when the circulation of the reactor coolant pump is stopped. Moreover, the shape of the hydraulic section of the pump, which was considered in the test, was prepared to compare the mixed-flow- and axial-flow-type models, the difference in the number of blades of the impeller and diffuser, the difference in the shape of the impeller blade and its thickness, and the effect of coating at the suction bell. Additionally, five models of the hydraulic part were manufactured for the experiments. In this study, the differences in performance owing to the design factors were confirmed through the experimental results.

Keywords

Acknowledgement

We would like to thank Editage (www.editage.co.kr) for English language editing.

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