原子能科学技术2016，Vol.50Issue(6)：1065-1071,7.DOI:10.7538/yzk.2016.50.06.1065
事故容错燃料在大破口事故下的安全分析
Safety Analysis of Accident-tolerant Fuel during LBLOCA
武小莉 1汪洋 2张亚培 1田文喜 1苏光辉 1秋穗正 1刘彤 2任啟森 2黄恒2
作者信息
- 1. 西安交通大学 动力工程多相流国家重点实验室 核科学与技术学院,陕西 西安 710049
- 2. 中科华核电技术研究院有限公司,四川 成都 610000
- 折叠
摘要
Abstract
The accident-tolerant fuel (ATF) system is aimed at improving safety characteristics of the nuclear fuel and cladding in a reactor core where active cooling is lost,and is more preferable compared with the current UO2-Zr system when the reactor is in normal operation.By the feature of advanced materials with improved properties,the ATF system will obviously slow down the progression of accidents,allowing larger margin of time for implementing the mitigation measures.Specifically,by simulating and analyzing the large break loss of coolant accident (LBLOCA) for both the design basis case and the severe accident case which involved in LBLOCA with completely failed emergency core cooling system (ECCS) for a typical pressurized water reactor (PWR) loaded with ATF,preliminary assessment on the performance of the ATF under severe accident conditions was performed in this paper.The results show that ATF could decrease the peak cladding temperature in the LBLOCA for the design base case and delay core melting in the LBLOCA severe accident case,compared with UO2-Zr,and be of better accident-tolerance characteristics.关键词
安全分析/事故容错燃料/严重事故Key words
safety analysis/accident-tolerant fuel/severe accident分类
能源科技引用本文复制引用
武小莉,汪洋,张亚培,田文喜,苏光辉,秋穗正,刘彤,任啟森,黄恒..事故容错燃料在大破口事故下的安全分析[J].原子能科学技术,2016,50(6):1065-1071,7.
