第30卷 2010年
第2期 6月
核科学与工程
Chinese Journal of Nuclear Science and Engineering
模块式高温气冷堆
三维中子动力学计算分析
宋英明，周志伟，马远乐
（清华大学核能与新能源技术研究院，北京100084）
Vol.30
No.2
Jun.
2010
三维圆柱几何堆芯多群中子动力学改进准静态方法模拟计算程序。对给定的模块式高温气冷堆堆芯物理模型进行了模拟计算。初始状态下，该程序计算结果与中子扩散程序CITATION吻合很好。动态情况下，模拟了堆芯反应性、堆芯相对功率以及堆内r，网格上各群点中子注量率三维分布随时间的变化，计算结果与理论分析一致。
关键词：模块式高温气冷堆；中子动力学；改进准静态方法
中图分类号：TL42
文献标志码：A
文章编号：0258-0918(2010)02-0135-09
Analysisofthe3DneutronkineticsforMHTGR
SONG Ying-ming, ZHOU Zhi-wei, MA Yuan-le
(Institute of Nuclear and New Energy Teehnology, Tsinghua University, Beijing 100084, China)
Abstract; Module High Temperature Gas-cooled Reactor (MHTGR) is well known as an advanced rector type in world nuclear industry. Simulation of the 3D-cylinder reactor core neutron kinetics by improved quasi-static method is studied in this paper, and the computation program is developed. For the supposable MHTGR model, the core neutronics is simulated. At the initiatory state, the calculated result from this code and the one from the neutron diffusion code system CITATION are met with each other very well. The variance of the core reactivity, the relative power, and the 3D distribution of the point neutron flux for each group in r, z mesh along with time are computed for the dynamic simulation of the given model. The simulated results are identical with that of the theoretic analysis.
Key words;MHTGR; neutron kinetics; improved quasi-static method 收稿日期：2009-03-06；修圆日期：2009-03-27
基金项目：国家重大科技专项（2008ZX06902-006）
作者简介：宋英明(1980—），男，山东人，博±研究生，核能科学与工程专业
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