压水堆LOCA源项分析方法保守性评价

Conservation Evaluation of PWR LOCA Source Term Analysis Method

本文给出了国内外主要的压水堆LOCA源项分析方法,包括美国一系列的导则、RCC-P、《压水堆核电厂设计基准事故源项分析准则》(以下简称源项分析准则)和欧洲部分研究报告中给出的源项分析方法,并针对源项分析准则中给出的LOCA源项分析方法保守性开展了初步评价。通过对放射性核素行为进行保守简化的处理,源项分析准则中给出了一套保守的LOCA源项分析方法。

The main LOCA accident source term analysis methods are presented in the present paper,including those given in the regulatory guide of US,RCC-P,analysis criterion of the design basis accident source terms of the PWR nuclear power plant of China and research reports of European.In the present paper,the conservatism of the LOCA source term analysis method given in Chinese Analysis Criterion are evaluated.The behaviors of the radionuclides are conservatively simplified and the conservative assumptions are given for the release process evaluation.Thus,the accident source term analysis method given in Chinese Analysis Criterion is a conservative method.