摘要
随着我国核电的快速发展,对后处理能力有了越来越大的需求。更大的后处理能力,意味着对于临界安全提出了更高的要求。因此需要对核临界事故分析开展研究。本文使用修正的准静态方法计算了溶液系统临界事故的平均功率,并且使用CRAC实验、TRACY实验和JCO事故进行了验证。在非沸腾工况期间和沸腾工况期间,该方法得到了较好的计算结果。验证表明,该方法适用于反应性引入的临界瞬态,可快速且较为准确的估算总功率,并用于裂变次数的估计,为临界事故后果评价分析提供技术手段,为后续的临界事故研究奠定基础。
With the rapid development of China’s nuclear power,the demand of post-processing capacity has been increasing too.Greater post-processing capability means a higher requirement for critical safety.So it is needed to carry out research for nuclear critical accident analysis.In this paper,the modified quasi-static method is used to calculate the average power of the critical fault of the solution system and verified by CRAC,TRACY transient experiments and JCO accident.During the non-boiling conditionand the boiling condition,the method obtains good calculation results in the verified ranges..The results show that this method is applicable to the critical transient introduced by the reaction.It could estimate the total power quickly and quite accurately,which could be used in fission number estimation and then provide the technical means for the critical accident consequence evaluation and analysis,lay the foundation for the subsequent critical accident research.
作者
于淼
易璇
YU Miao;YI Xuan(China Nuclear Power Engineering Co.,Ltd,Beijing 100840,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2018年第6期1014-1019,共6页
Nuclear Science and Engineering
关键词
临界瞬态
准静态
功率
Critical Transients
Quasi-static
Power
