CAJ | 학술논문

钠火事故是钠冷快堆的典型和特有事故，且很可能是反应堆总风险的主要贡献因素之一。本文在介绍钠火事故特点的基础上，研究使用概率安全分析评价钠冷快堆钠火风险的方法。以中国实验快堆反应堆大厅钠火事故为实例，计算得到反应堆大厅钠火导致的堆芯损坏频率为1.19×10-8/（堆·年）。在此基础上进一步讨论目前钠火概率安全评价中尚需研究的关键问题。
납화사고시납랭쾌퇴적전형화특유사고，차흔가능시반응퇴총풍험적주요공헌인소지일。본문재개소납화사고특점적기출상，연구사용개솔안전분석평개납랭쾌퇴납화풍험적방법。이중국실험쾌퇴반응퇴대청납화사고위실례，계산득도반응퇴대청납화도치적퇴심손배빈솔위1.19×10-8/（퇴·년）。재차기출상진일보토론목전납화개솔안전평개중상수연구적관건문제。
T he sodium fire is a typical and distinctive hazard in sodium cooled fast reac-tor ,w hich is probably one of the main contributors to the total reactor risks .In this paper ,the methodology of fast reactor sodium fire risk assessment was studied ,follow-ing the introduction of the sodium fire . T he application of this technology in China Experimental Fast Reactor was explored ,and the results show that the core damage frequency induced by the sodium fire in reactor hall is 1 .19 × 10 -8/(reactor · year ) . After that , several key problems which need to be further researched in the future during the process of sodium fire probabilistic safety assessment were discussed .