关于HTR球床堆叠密度统计方法的研究及应用  

Research and Application of Packing Density for Pebble Bed in HTR

作　　者：于福江[1] 谢菲[1] 孙喜明[1] 

机构地区：[1]清华大学核能与新能源技术研究院,先进核能技术协同创新中心,先进反应堆工程与安全教育部重点实验室,北京100084

出　　处：《原子能科学技术》2015年第8期1452-1459,共8页Atomic Energy Science and Technology

基　　金：国家科技重大专项资助项目(ZX06901)

摘　　要：球床式高温气冷堆是目前中国自主研发的主要堆型,对于球床内的球体随机堆叠密度分布的统计分析是高温气冷堆物理-热工计算和安全分析的重要问题之一。针对这一问题,提出了一种新的堆叠密度分布的统计方法。通过与传统格子填充法计算结构和实验值进行对比,验证了该方法的高效性和准确性,同时帮助传统格子填充法找出最佳的单元尺度,并尝试利用该方法对实验中多次观察到的边界效应进行分析。The pebble bed high temperature gas-cooled reactor is one of the major types of reactors developed by Chinese nuclear technology. The statistical analysis for packing density in the pebble bed is an important issue of physical-thermal calculation and safety analysis. Aimed to this problem, a new kind of method was set up to solve this problem. Compared with the traditional lattice-fill method and the experiment, its efficiency and accuracy were verified, while helping to find out the best length of unit in the tradi- tional lattice-fill method. This method was used to analyze the boundary effects observed by experiments.

关 键 词：高温气冷堆 堆叠密度 格子填充法 

分 类 号：TG172[金属学及工艺—金属表面处理]