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《Chinese Journal of Nuclear Science and Engineering》 2011-01
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Research of severe accident induced by small LOCA and accident mitigation

WANG Gao-peng1,LIU Chang-liang1,YE Zhong-hao2(1.China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China;2.State Nuclear Power Engineering Co.,Ltd.,Shanghai 200233,China)  
Fangjiashan nuclear power plant is modeled by using MAAP4 code.Base on this model,the small LOCA accident is calculated,which will cause the worst consequence.The response of the plant and relevant severe accident phenomena are obtained.The phenomena of DCH(direct containment heat) happened during the accident,containment failure and release of the fission production are analyzed.Then,according to the related severe accident management and characteristic of this accident,the strategy of mitigating the accident consequence is studied and calculated.The result indicated that the mitigation action is very efficient.Therefore,a feasible strategy of mitigating the severe accident consequence is provided for the three-loop plant like Fangjiashan in China.
【CateGory Index】: TM623.8
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