基于AP1000压水堆模型的cosRMC程序临界计算能力验证与评估  

Verification and Assessment of Criticality Calculation Capabilitiesof cosRMC Code Based on AP1000 PWR Models

作　　者：秦瑶 全国萍 李硕 余慧 陈义学 QIN Yao;QUAN Guo-ping;LI Shuo;YU Hui;CHEN Yi-xue(State Nuclear Power Software Development Center,SPICRI,Beijing 102209,China;National Energy Key Laboratory of Nuclear Power Software,Beijing 102209,China)

机构地区：[1]国家电投集团科学技术研究院,核电软件技术中心,北京102209 [2]国家能源核电软件重点实验室,北京102209

出　　处：《现代应用物理》2020年第1期71-75,共5页Modern Applied Physics

基　　金：核电关键设计软件评估重大专项(2016ZX06004-002)。

摘　　要：利用cosRMC程序对AP1000三代非能动压水堆的21种典型组件模型及全堆芯模型开展了精细建模和临界计算,将计算得到的无限增殖因子、有效增殖因子及径向功率分布等参数与参考结果进行了比对,并研究了无限增殖因子和有效增殖因子对相关核数据的敏感性及其不确定度。结果表明,用cosRMC程序计算得到的各种参数准确度较高,与参考结果符合良好,验证了cosRMC程序具有精确模拟三代压水堆的临界计算能力及合理估算相关参数不确定度的能力。In this paper,the different models of the AP1000 third-generation non-dynamic pressurized water reactor(PWR),including 21 typical assembly and the full-core models,are modeled and calculated finely by using the cosRMC code,and the parameters such as the infinite multiplication factor,the effective multiplication factor,and the radial power distribution are compared with the reference results.Furthermore,the sensitivity and the uncertainty analyses of the infinite multiplication factor and the effective multiplication factor to the relevant nuclear data for all models are carried out.The results show that the parameters calculated by the cosRMC code are of high accuracy and are in good agreement with the reference results.It indicates that the cosRMC code can accurately simulate the criticality calculation capabilities of the third-generation PWR and reasonably estimate the uncertainties of the related parameters.

关 键 词：cosRMC 蒙特卡罗程序 压水堆 临界计算 敏感性分析 不确定度分析 

分 类 号：TL32[核科学技术—核技术及应用]