Nuclear Engineering and Technology

  • 제53권8호
  • /
  • Pages.2716-2727
  • /
  • 2021
  • /
  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Earthquake response of a core shroud for APR1400

  • Jhung, Myung Jo (Department of Nuclear Safety Research, Korea Institute of Nuclear Safety) ;
  • Choi, Youngin (Department of Nuclear Safety Research, Korea Institute of Nuclear Safety) ;
  • Oh, Chang-Sik (Department of Nuclear Safety Research, Korea Institute of Nuclear Safety)
  • 투고 : 2020.09.21
  • 심사 : 2021.02.07
  • 발행 : 2021.08.25
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초록

The core shroud is one of the most important internal components of the reactor vessel internals because it meets the neutron fluence directly emitted by the nuclear fuel. In particular, dynamic effects for an earthquake should be evaluated with respect to the neutron irradiation flux. As a prerequisite to this study, simplified and detailed finite element models are developed for the core shroud using the ANSYS Design Parametric Language. Using the El Centro earthquake, seismic analyses are performed for the simplified and detailed core shroud models. Modal characteristics are obtained and their results are used for a time history analysis. Response spectrum analyses are also performed to access the degree of seismic excitation. The results of these analyses are compared to investigate the response characteristics between the simplified and detailed core shroud models from the time history and response spectrum analyses.

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과제정보

This work was supported by the Nuclear Safety Research Program through the Korea Foundation of Nuclear Safety(KoFONS) using financial resources granted by the Nuclear Safety and Security Commission(NSSC) of the Republic of Korea. (No. 1805005).

참고문헌

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