10MW 高温气冷堆控制棒反应性当量计算  

Reactivity Worth Calculation for ControlRods of High TemperatureGasCooled Reactor

作　　者：许云林[1] 经荥清[1] 王德安 

机构地区：[1]清华大学核能技术设计研究院

出　　处：《核动力工程》1997年第6期500-504,共5页Nuclear Power Engineering

基　　金：国家"八六三"高技术项目

摘　　要：介绍了１０ＭＷ高温气冷堆位于反射层中的控制棒反应性当量的计算方法。用ＧＡＭ和ＴＨＥＲＭＯＳ程序分别产生堆芯、反射层、含硼碳砖及控制棒组成材料的超热群和热群截面。用二维离散纵标法程序ＳＮ在（ｒ，θ）坐标系下作控制棒详细结构模型计算，同时考虑空间和能谱效应。按通量权重归并控制棒区（包括控制棒、空隙及石墨反射层的整个圆环）的均匀化截面。用有限差分程序ＣＩＴＡＴＩＯＮ在（ｒ，ｚ）坐标系下计算了全堆控制棒全插和全提情况下的Ｋｅｆｆ本征值，并由此得到控制棒的反应性当量。控制棒反应性积分与微分当量也在文中给出。　his paper described the calculation method for reactivity worth of control rods of high temperature gascooled reactor(HTR10),in which the control rods are located at the reflector and directly of near the core.GAM and THERMOS cods are used in the usual way to produce cross sections of core,reflector,and materials used in control rods,etc.The twodimensional discreteordinates transport theory code SN is used to calculate a model with clear structure of control rod in(r,θ)system,space effect and spectrum effect are dealt at same time in this model.The cross sections in the region that includes control rod and part reflector are homogenized by the weight of fluxes.The Keff for the situations with control rods fully inserted and fully withdrawn is calculated using diffusion theory code CITATION in(r,z)system.The calculation of reactivity worth of control rods of HTR10 has been discussed in this paper.The integral and differential worthes of control rod are also studied.

关 键 词：高温 气冷堆 控制棒 均匀化截面 反应性当量 

分 类 号：TL424.062[核科学技术—核技术及应用]