Nuclear Engineering and Technology

  • 제56권1호
  • /
  • Pages.309-316
  • /
  • 2024
  • /
  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Development of a new CVAP structural analysis methodology of APR1400 reactor internals using scaled model tests

  • Jongsung Moon (KEPCO E&C (Korea Electric Power Corporation Engineering & Construction)) ;
  • Inseong Jin (KEPCO E&C (Korea Electric Power Corporation Engineering & Construction)) ;
  • Doyoung Ko (KHNP(Korea Hydro & Nuclear Power Co, Ltd.)) ;
  • Kyuhyung Kim (KHNP(Korea Hydro & Nuclear Power Co, Ltd.))
  • 투고 : 2023.02.15
  • 심사 : 2023.10.03
  • 발행 : 2024.01.25
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초록

The U.S. Nuclear Regulatory Commission (NRC) Regulatory Guide (RG) 1.20 provides guidance on the comprehensive vibration assessment program (CVAP) to be performed on reactor internals during preoperational and startup tests. The purpose of the program is to identify loads that could cause vibration in the reactor internals and to ensure that these vibrations do not affect their structural integrity. The structural vibrational analysis program involves creating finite element analysis models of the reactor internals and calculating their structural responses when subjected to vibration loads. The appropriateness of the structural analysis methodology must be demonstrated through benchmarks or any other reasonable means. Although existing structural analysis methodologies have been proven to be appropriate and are widely used, this paper presents the development of an improved new structural analysis methodology for APR1400 reactor internals using scaled model tests.

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과제정보

This research was supported by KHNP (Korea Hydro & Nuclear Power Co., Ltd.) and received assistance from KEPCO E&C (Korea Electric Power Corporation Engineering & Construction), Doosan Enerbility, Woojin, and KIMM (Korea Institute of Machinery & Materials) in the design of experiments, testing, and analysis.

참고문헌

  1. U.S. NRC, Regulatory Guide 1.20, Rev. 4, Comprehensive Vibration Assessment Program for Reactor Internals during Preoperational and Startup Testing, February 2017.
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