摘要
深度次临界状态下,传统源倍增法在核反应堆反应性测量上具有精度低的特点,为提高测量精度,本文对CORCA软件进行扩充,开发了具备固定源问题求解和带不连续因子中子价值求解功能的CORCAFIX软件,并采用对照程序和实堆数据对CORCA-FIX软件进行了计算验证。验证结果证实,CORCA-FIX在求解带固定源堆芯的深度次临界状态时有着较高的精度,输出的结果应用于实堆数据后获得了更好的次临界度测量结果,且满足工程应用中反应性测量的偏差准则。
In the deep subcritical state,the traditional source multiplication method has the characteristic of low accuracy in the measurement of nuclear reactor reactivity.In order to improve the measurement accuracy,this paper expands CORCA software,develops CORCA-FIX software with fixed source problem solving function and neutron value solving function with discontinuous factor,and uses the comparison program and real reactor data to calculate and verify CORCA-FIX software.The verification results confirm that CORCA-FIX has high accuracy in solving the deep subcritical state of the core with fixed source.After the output results are applied to the real reactor data,better subcritical degree measurement results are obtained,and the deviation criteria of reactivity measurement in engineering applications are met.
作者
周楠
于颖锐
赵文博
廖鸿宽
卢迪
陈飞飞
刘佳艺
Zhou Nan;Yu Yingrui;Zhao Wenbo;Liao Hongkuan;Lu Di;Chen Feifei;Liu Jiayi(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2022年第5期238-244,共7页
Nuclear Power Engineering
关键词
核反应堆堆芯求解
固定源问题
共轭计算
软件实现
Nuclear reactor core solving
Fixed source problem
Conjugate calculation
Software implementation