摘要
采用严重事故最佳估算程序SCDAP/RELAP5/MOD3.4,建立了美国Surry核电站的详细计算模型,对完全丧失给水(TLFW)引发的堆芯熔化事故进行了研究分析。为准确预测压力容器内堆芯熔化的进程,给二级PSA提供可信的初始条件,计算中考虑了一回路压力边界的蠕变破裂失效,并评价了人为干预对堆芯熔化进程及事故后果的影响。
Using the best estimate computer code SCDAP/RELAP5/MOD3. 4, the detailed calculation models of USA Surry NPP are established and TLFW-indueed core melt accident is analyzed. In order to predict the in- vessel core melt progression accurately and provide PSA-2 with the reliable initialization conditions,the creep rupture failure of primary loops pressure boundary is taken into account in code calculation. Besides, core melt progression and accident results with operator action are evaluated.
出处
《核科学与工程》
CSCD
北大核心
2006年第2期122-127,共6页
Nuclear Science and Engineering
