长寿期板状压水堆组件可燃毒物装载形式选型研究  

Selection of Burnable Poison Loadings of Long-Life Plate-Shaped PWR Assemblies

作　　者：徐士坤 于涛[1,2] 谢金森[1,2] 李满仓[3] 夏羿 姚磊 Xu Shikun;Yu Tao;Xie Jinsen;Li Mancang;Xia Yi;Yao Lei(School of Nuclear Science and Technology,University of South China,Hengyang,Hunan,421001,China;Hunan Engineering&Technology Research Center for Virtual Nuclear Reactor,University of South China,Hengyang,Hunan,421001,China;Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]南华大学湖南省数字化反应堆工程技术研究中心,湖南衡阳421001 [3]中国核动力研究设计院,成都610213

出　　处：《核动力工程》2021年第6期5-11,共7页Nuclear Power Engineering

摘　　要：板状压水堆在长寿期反应堆中具有较好的应用前景。针对长寿期板状压水堆的需要,对中子学性能较好的4种可燃毒物:^(157)Gd_(2)O_(3)、^(167)Er_(2)O_(3)、^(231)Pa_(2)O_(3)和PACS-J开展可燃毒物装载形式选型研究,筛选出中子学性能较优的装载形式。研究结论为:针对不同可燃毒物采用不同装载形式,可以更好地满足长寿期板状压水堆的综合要求;对于中子学性能较优的可燃毒物,^(157)Gd_(2)O_(3)和^(167)Er_(2)O_(3)可采用可燃毒物与燃料均匀混合的装载形式;^(231)Pa_(2)O_(3)可采用包壳中掺杂可燃毒物的装载形式;PACS-J可采用可燃毒物以颗粒形式与燃料混合的装载形式。Plate-shaped PWRs have good application prospects in long-life reactors.According to the needs of long-life plate-shaped PWRs,the four burnable poisons with better neutronics performance(^(157)Gd_(2)O_(3),^(167)Er_(2)O_(3),^(231)Pa_(2)O_(3) and PACS-J)were studied on the selection of burnable poison loading forms,and the loading form with better neutronics performance was screened out.The results show that:Different loading forms for different burnable poisons can better meet the comprehensive requirements of long-life plate-shaped PWRs;For burnable poison with better neutronics performance,^(157)Gd_(2)O_(3) and ^(167)Er_(2)O_(3) can be loaded with fuel evenly mixed;^(231)Pa_(2)O_(3) can be loaded with burnable poison mixed in the cladding;PACS-J can be loaded in pellet form mixed with fuel.

关 键 词：长寿期板状压水堆 可燃毒物 中子学性能 装载形式 

分 类 号：TL329[核科学技术—核技术及应用]