细棒稠密栅格参数优化设计  

Parameter Optimization and Design of Tight Lattice Rod Bundles

作　　者：戴春辉[1] 王丽[1] 邰云[1] 赵福宇[1] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《原子能科学技术》2012年第1期20-25,共6页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(10975112)

摘　　要：细棒稠密栅格相对于常规栅格具有一定优越性,燃料棒束按正三角形栅格紧密排列,能提高堆芯燃料所占体积份额,使堆芯具有较高的功率密度。在分析堆芯性能与栅格参数关系的基础上,以ABV-6M反应堆为例,提出堆芯功率密度和冷却剂流速两个目标函数。利用遗传算法对燃料元件的棒径、棒间距进行了多目标优化计算,将优化结果与文献中堆芯参数对比。对比结果表明,细棒稠密栅格对提高堆芯功率密度、改善堆芯性能是有效的。Thin rod bundles with tight lattice are arranged according to the equilateral triangle grid. As the proportion of fuel is large, the power density of core is high. Based on the analysis of the capability of core, the ABV-6M reactor was taken as the example, and two objective functions, power density and flow rate of coolant were proposed for optimization calculation. Diameter and pitch of rods were optimized using the genetic algorithm method separately. The result shows that tight lattice is effective for impro- ving the performance of the reactor core and the core power density compared with the core parameters in literature.

关 键 词：稠密栅格 多目标优化 遗传算法 

分 类 号：TL352.1[核科学技术—核技术及应用]