自主化堆芯核设计软件COCO验证与确认

Verification and Validation of Self-reliant Core Nuclear Design Code COCO

COCO软件是中国广核集团自主研发的三维堆芯核设计软件,在投入工程应用之前,需对软件进行验证与确认。借助已有的国际基准题,对软件的各模块进行验证,保证模型的正确性。借助中国广核集团岭澳、宁德、红沿河等基地大量的运行数据,并耦合上游组件截面计算软件PINE和下游通量图处理软件MAPLE进行计算分析。验证与确认结果表明,COCO软件具有良好的计算精度。

COCO,the core nuclear design code,was developed by China General Nuclear Power Corporation.Before its industrial application,the COCO code should be verified and validated thoroughly.Each theoretical model implemented in COCO code was validated with various international benchmarks.With usage of the lattice calculation PINE code and the flux mapping MAPLE code,the core simulation results from COCO were compared with the operational data from Ling＇ao,Ningde and Hongyanhe power plants of China General Nuclear Power Corporation.The results show that the COCO code has favorable calculation accuracy.