Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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OVERVIEW OF CONTAINMENT FILTERED VENT UNDER SEVERE ACCIDENT CONDITIONS AT WOLSONG NPP UNIT 1

  • Song, Y.M. (Korea Atomic Energy Research Institute) ;
  • Jeong, H.S. (Korea Atomic Energy Research Institute) ;
  • Park, S.Y. (Korea Atomic Energy Research Institute) ;
  • Kim, D.H. (Korea Atomic Energy Research Institute) ;
  • Song, J.H. (Korea Atomic Energy Research Institute)
  • Received : 2013.08.31
  • Published : 2013.10.25
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Abstract

Containment Filtered Vent Systems (CFVSs) have been mainly equipped in nuclear power plants in Europe and Canada for the controlled depressurization of the containment atmosphere under severe accident conditions. This is to keep the containment integrity against overpressure during the course of a severe accident, in which the radioactive gas-steam mixture from the containment is discharged into a system designed to remove the radionuclides. In Korea, a CFVS was first introduced in the Wolsong unit-1 nuclear power plant as a mitigation measure to deal with the threat of over pressurization, following post-Fukushima action items. In this paper, the overall features of a CFVS installation such as risk assessments, an evaluation of the performance requirements, and a determination of the optimal operating strategies are analyzed for the Wolsong unit 1 nuclear power plant using a severe accident analysis computer code, ISAAC.

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References

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