内冷式压水反应堆堆芯组件中子学初步研究  

Neutronics Analysis for Core Assembly in Inverted Hydride-Fueled Pressurized Water Reactor

作　　者：曾正魁[1] 于涛[1] 谢金森[1] 刘杰[1] 秦勉[1] 

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001

出　　处：《核动力工程》2013年第5期20-24,共5页Nuclear Power Engineering

基　　金：湖南省教育厅重点资助(11A101);核反应堆系统设计技术重点实验室基金资助(2010SYS02)

摘　　要：为得到物理性能较优的燃料栅元尺寸,利用蒙特卡罗(MCNP)程序对内冷式压水堆(IPWR)堆芯组件的中子学问题进行初步研究。通过计算不同可溶硼浓度下无限增殖系数(kinf)随轻重比(H/HM)的变化,确定组件燃料栅元的尺寸范围,通过分析比较不同燃料栅元尺寸下组件物理性能,得到物理性能方面较优的组件参数。结果表明,在H/HM为6.5,水棒直径(Dci)范围为9～11 mm时,组件具有较好的物理性能和固有安全性。In order to obtain the size of assembly cell with a better physical performance,a preliminary neutronics study was carried out for IPWR core using MCNP program.Firstly,the paper have studied how the Keff changed with different H/HM （Hydrogen atoms/Heavy metal atoms） in different soluble boron concentration,and a size arrangement of assembly cell lattices is obtain.By comparing the physical performance of different size of assembly cell lattices,some assembly cell lattices which have a better physical performance are obtained.The result shows that：when the H/HM is 6.5 and water channel diameter ranges from 9 to 11mm,the assemblies have a better physical performance and an inherent safety.

关 键 词：内冷式压水堆(IPWR) 组件中子学 氢化物燃料 

分 类 号：TL329.2[核科学技术—核技术及应用]