基于简化球谐函数的反应堆物理计算软件用于棒栅压水堆的建模验证

In order to verify the new R&D code, a new generation of Pin-by-pin solution package KYLIN V2.0-CORCA-SPn is used to verify and analyze the measured data of the first cycle of Fuqing Unit 5. The results show that the maximum integral rod worth difference is 7.17%, which occurs in N2 rod bank, while the others are lower than 5%. The maximum critical reactivity difference in the cycle is −0.559%. The deviation between fuel pin power and RMC code is within 8%. The numerical model proposed in this paper has high discrete accuracy and good computational stability, and the relevant verification work can provide technical support for the core code design of a new generation of pressurized water reactors, thus meeting the research and development design requirements of new complex reactors.