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.
作者
徐士坤
于涛
谢金森
李满仓
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)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2021年第6期5-11,共7页
Nuclear Power Engineering
关键词
长寿期板状压水堆
可燃毒物
中子学性能
装载形式
Long-life plate-shaped pressurized water reactor
Burnable poison
Neutronics performance
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