基于遗传算法的钠冷快堆堆芯流量分区优化设计方法  

Optimized Design Method for Core Flow Zoning of Sodium-cooled Fast Reactor Based on Genetic Algorithm

作　　者：王晓坤[1] 王端 齐少璞 胡赟[1] 张东辉[1] WANG Xiaokun;WANG Duan;QI Shaopu;HU Yun;ZHANG Donghui(Division of Reactor Engineering Technology Research,China Institute of Atomic Energy,Beijing 102413,China;China National Nuclear Corporation Graduate School,Beijing 102413,China)

机构地区：[1]中国原子能科学研究院反应堆工程技术研究部,北京102413 [2]核工业研究生部,北京102413

出　　处：《原子能科学技术》2020年第9期1660-1665,共6页Atomic Energy Science and Technology

摘　　要：钠冷快堆采用封闭组件,流量分区是实现堆芯出口温度展平的重要途径。传统的流量分区优化设计方法的计算量随组件数的增加呈指数增长,不适用于解决大型问题。本文建立了流量分区设计的最优化模型,并设计了基于最优个体保存策略的遗传算法,以燃料最高温度限值和包壳温度限值为边界条件,搜索出使活性区平均出口温度最高以及活性区总流量最小的最优流量分区方案,为解决大型钠冷快堆堆芯流量分区优化设计问题提供了新的途径。Sodium-cooled fast reactors use closed assemblies,and flow zoning is an important means to achieve core outlet temperature flattening.The calculation amount of the traditional flow zoning optimization design method increases exponentially with the number of fuel assemblies,which is not suitable for solving large-scale problems.In this paper,an optimization model for flow zoning design was established,and a genetic algorithm based on the optimal individual preservation strategy was designed.The maximum fuel temperature limit and cladding temperature limit were used as the boundary conditions to search for the optimal flow zoning solution.The average outlet temperature of the active zone is the highest,and the total flow of the active zone reaches the minimum.It provides a new approach to solve the core flow zoning optimization design problem of large-scale sodium-cooled fast reactor.

关 键 词：钠冷快堆 流量分区 遗传算法 

分 类 号：TL425[核科学技术—核技术及应用]