换料组件数为64组的堆芯燃料管理方案研究  

Study on Fuel Management for 64 Refueling Assemblies

作　　者：姚红 

机构地区：[1]中国核电工程有限公司,北京100840

出　　处：《核科学与工程》2014年第1期51-58,共8页Nuclear Science and Engineering

摘　　要：本文应用SCIENCE程序包对157组燃料组件组成的压水堆反应堆堆芯进行18个月换料优化燃料管理研究,给出了采用64组换料组件时的共4个设计方案,每个设计方案给出了从首循环到第8循环共8个循环的主要计算结果,并进行分析比较。如果采用现有富集度4.45%的燃料组件即方案1,平衡循环长度较短,为460EFPD。为了增加循环长度,在仍然采用64组换料组件的情况下,需提高换料组件的富集度到4.95%,即方案2。而为了降低组件最大卸料燃耗,采用了两种富集度的燃料组件,且采用不同的组合,即方案3和方案4。By applying SCIENCE code, the report carries out study on the refueling optimization of the 157-fuel-assembly core of PWR, and gives four design schemes adopting 64 refueling assemblies. Each design scheme gives out main results of eight refueling cycles from the first to the eighth cycle, and analysis and comparison are carried out. In Scheme 1, the equilibrium cycle length is shorter, that is 460EFPD, which adopts existing fuel assembly with enrichment 4.45%. In order to increase the cycle length, it is necessary to improve the enrichment of fuel assembly to 4.95% in Scheme 2 adopting 64 refueling assemblies. In order to reduce the maximum unloading burnup, the Scheme 3 and Scheme 4 adopt two enrichment of fuel assemblies and different combinations.

关 键 词：换料优化 燃料管理 设计方案 

分 类 号：TL389.4[核科学技术—核技术及应用]