摘要
应用Ｓｍｉｔｈ的一般等效均匀化理论推导了围板和反射层的等效均匀化常数的计算公式，并编制了计算软件。利用该软件计算了Ｚｉｏｎ－１ｃｏｒｅ及秦山压水堆的图板、反射层等效均匀化常数，并将它们应用到堆芯扩散计算中。数值结果表明，这样计算的图板和反射层的等效均匀化常数能很好地改善堆芯功率分布的计算精度，尤其是堆芯周围组件的功率分布。
In this paper, the calculation method of the equivalent homogenized constants of the baffle and reflector has been developed in detail by using the general equivalent theory on homogenization(G. E. T)proposed by K. S. Smith. Based on the proposed models the transport code for calculation of equivalent homogenized constants of the baffle and reflector has been compiled. These codes are applied to the Zion-1 and Qingshan core diffusion calculations for verification. Numerical results demonstrate that thus calculated equivalent homogenized constants will significantly improve the accuracy of the power distribution at the core edge as well as that of the full scale core Power distribution.
出处
《核科学与工程》
CAS
CSCD
北大核心
1996年第2期97-103,共7页
Nuclear Science and Engineering
基金
国家自然科学基金
核工业基金
关键词
围板
反射层
均匀化
群常数
压水堆
baffle
reflector
homogenization
group constants
