Core reactivity control for a soluble boron free small modular reactor

Hyeong Heon Kim, Chang Kyu Chung, Mohd Syukri Yahya, Yonghee Kim

Research output: Contribution to journalConference article

1 Citation (Scopus)


In order to remove soluble boron in PWRs, reactivity control systems which can replace the broad reactivity control functions of soluble boron should be derived. In this study, combinations of BAs, control rods and SSS are proposed for the SBF SMR. BAs would replace most of the soluble boron function of controlling the excess reactivity in order to minimize insertion of control rods during power operation. In order to achieve subcriticality at cold condition with only control rods, all fuel assemblies are to be loaded with control rods. Two SSS options are also proposed in this study: one derived from a proven system and another an innovative design. The reactivity control using these design options is evaluated to fulfill the relevant GDCs and ATWS rules for normal and abnormal conditions.

Original languageEnglish
Pages (from-to)1027-1029
Number of pages3
JournalTransactions of the American Nuclear Society
Publication statusPublished - 01 Jan 2017
Event2017 Transactions of the American Nuclear Society, ANS 2017 - San Francisco, United States
Duration: 11 Jun 201715 Jun 2017


All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Safety, Risk, Reliability and Quality

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