
第31卷第4期 2011年12月
核科学与工程
Chinese Journal of Nuclear Science and Engineering
Vol.31
No.4
Dec.
松散耦合反应堆系统基本物理特性研究
唐菲菲,陶乃贵,蒋校丰,张少泓(上海交通大学核科学与工程学院,上海200240)
2011
摘要:从简化的一维双区平板反应堆间题人手,专门对松散耦合反应堆系统的基本物理特性进行了研统内反应性最大的区域所决定,其余区域对系统的反应性没有贡献。此外,研究还表明,一个由外源弱动的次临界弱耦合反应堆系统其中子注量率信息只反映外源中子所在区域局部的反应性大小,而非整个系统的反应性。
关键词:松散耦合反应堆;本征值;外中子源;中子注量率
中图分类号:TL329
文章标志码:A
文章编号:0258-0918(2011)04-0289-05
Investigationsonthebasiccorephysicscharacteristicsof
aloosely-coupled reactor system
TANG Fei-fei,TAO Nai-gui,JIANG Xiao-feng,ZHANG Shao-hong
(School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)
Abstract: Based on a simplified one-dimensional two-fuel-plates reactor core model, the basic physics characteristics of a loosely-coupled reactor system is investigated. Numerical results demonstrate that for a multi-region reactor system, when the region to-region coupling is weak, the system k-effective is fully dominated by the region with the highest reactivity, while other regions do not contribute the system reactivity at all. Moreover, numerical results also reveal that for a subcritical loosely-coupled reactor system driven by an external neutron source, the information of system flux just reflects the local reactivity of the region where the external source is inserted, not the global one of the system.
Key words: loosely-coupled reactor;k-eigenvalue problem; extraneous neutron sources; neutronflux
通常的反应堆物理研究都只针对单个的反收稿日期:2011-09-05;修回日期:2011-10-25
应堆堆芯开展,然而在实际工程中,还有些问题
作者简介:唐非菲(1985一),女,浙江诸暨人,硕士研究生,目前从事反应堆物理方面的研究
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