逐层面耦合堆芯功率分布扩展计算方法研究  

Research on Calculation Method for Successive Layer Coupling Core Power Distribution Expanding

作　　者：李松岭[1] 秦冬[1] 关晖[1] 吴磊[1] 夏榜样[1] 

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610041

出　　处：《核动力工程》2015年第2期1-5,共5页Nuclear Power Engineering

摘　　要：介绍堆芯功率分布扩展的逐层面耦合法理论模型和逐次超松弛迭代求解方程组的方法。利用FORTRAN90语言编制堆芯功率分布扩展程序EXP,然后用大亚湾核电站1号机组第11循环理论计算和实测数据,对扩展计算结果进行敏感性分析和验证。结果表明:该方法利用理论计算功率建立起全堆芯各组件的耦合关系,利用实测功率对全堆芯各组件功率进行求解,进而完成功率分布扩展计算的方法是正确有效的,对测点失效情况有较好的适应性。This paper introduces the theoretic model for the successive layer coupling method for the core power distribution expanding and the solution method for the successive over relaxation equation. The calculation code EXP for the core power distribution expanding, which is based on these methods, has been programmed in FORTRAN90 computer language. The theoretic and metrical data of the unit 1, cycle 11 of Daya Bay NPP are used for analyzing the sensitivity and validity of the expanding calculation results. The results show that, this expanding method uses the theoretic data to build the coupling connection of assemblies in the core and uses the metrical data to calculate the power of all assemblies, and then the expanding calculation is conducted. The method is correct and effective, and has a good adaptability for the invalidation of the measure points.

关 键 词：逐层面耦合法 堆芯功率分布 扩展计算 EXP程序 敏感性分析 

分 类 号：TL329.2[核科学技术—核技术及应用]