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Fire Simulations for the Abandonment Risk Assessment of Main Control Room Fire in Domestic Nuclear Power Plant

국내 원자력발전소의 주제어실 화재 피난 리스크 평가를 위한 화재 시뮬레이션

  • 강대일 (한국원자력연구원 종합안전평가부) ;
  • 김길유 (한국원자력연구원 종합안전평가부) ;
  • 장승철 (한국원자력연구원 종합안전평가부) ;
  • 유성연 (충남대학교)
  • Received : 2014.05.13
  • Accepted : 2014.08.05
  • Published : 2014.08.31

Abstract

In this paper, to systematically assess the abandonment risk of main control room (MCR) fire, fire simulations with Fire Dynamics Simulator were performed and abandonment probabilities were estimated for the MCR bench-board fire of domestic reference nuclear power plant. The fire simulation scenarios performed in this study included propagating and non-propagating fires of the MCR bench-board, and the availability and unavailability of heating, ventilation, and air conditioning system (HVACS). The following results were obtained. First, temperature was the major abandonment impact factor for the MCR bench-board fire if the HVACS was available and optical density was that if the HVACS was unavailable. Second, the fire scenario contributing the MCR bench-board fire abandonment risk was identified to be only the propagating fire. Third, it was confirmed that the abandonment probability of the MCR bench-board fire for domestic reference nuclear power plant could be reduced by using the fire modeling.

Keywords

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