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CCDP Evaluation of the Eire Areas in NPP Applying CEAST Model (II)  

Lee Yoon-Hwan (한국원자력연구소)
Yang Joon-Eon (한국원자력연구소)
Kim Jong-Hoon (광운대학교 건축공학과)
Kim Woon-Byung (경민대학 소방안전관리과)
Publication Information
Fire Science and Engineering / v.19, no.3, 2005 , pp. 20-27 More about this Journal
Abstract
This paper evaluates the fire safety level of eight pump rooms in the nuclear power plant using a fire model, CFAST We estimate the Conditional Core Damage Probability (CCDP) of each room based on the analyzed results of CFAST Eight rooms located on the primary auxiliary building of the nuclear power plant are high pressure safety injection pump room A/B, low pressure safety injection pump room Am. containment sprdy pump room A/B, and motor-driven auxiliary feed water pump room A/B. The upper layer gas temperature of each room is estimated and the integrity of cable is reviewed. Based on the results, the integrity of the cable located at the upper part of compartment is maintained without thermal damage. The Conditional Core Damage Probability Is reduced to half of the old values. Accordingly, the fire safety assessment for eight pump rooms using the fire model will be capable of reducing the uncertainty and to develop a more realistic model.
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