摘要
传统使用的失水事故分析模型和方法被公认是极度保守的,它带来不必要的过量裕度,限制了运行核电厂和新建核电厂的功率提高,并限制了运行的灵活性。最佳估算方法的发展和应用为消除这些不必要的限制提供了可能。本文介绍了压水堆失水事故最佳估算方法的进展;叙述了最佳估算方法及评价方法,特别是不确定性分析方法,介绍了目前已获使用的最佳估算程序。
The traditional evaluation models and methodologies of LOCA analysis are recognized as highly conservative,which both limits the power uprating of the operating and newly-built NPPs and restricts the flexibility of operation.The best estimate methodology provides a perspective way to eliminate the above restricts.An introduction was made on status of the best estimate methodology of PWR LOCA.The best estimate method and its evaluation models,especially the uncertainty analysis methods,were given in the paper.The best-estimate computer codes being approved to use were also presented.
出处
《核安全》
2010年第1期1-12,共12页
Nuclear Safety
