原子能科学技术2016，Vol.50Issue(7)：1200-1207,8.DOI:10.7538/yzk.2016.50.07.1200
TOPAZ-Ⅱ系统启动过程模拟
Start-up Simulation of TOPAZ-Ⅱ System
摘要
Abstract
The thermionic reactor power system TOPAZ-Ⅱ of former Soviet Union was simplified.The core thermal-hydraulic model,neutron physics model and heat rejection system model were established,respectively.One-dimensional thermal-hydraulic model was used to model the coolant circuit.Two-dimensional analysis models for the core heat transfer and the radiator fin heat conduction with radiation were established.The point reactor kinetics equation with six-group delayed neutrons,taking the temperature feedbacks of UO2 fuel,thermionic electrode,moderator and reflector and the control drum reactivity control into account,was applied.The changes of temperature,power and reactivity feedback of TOPAZ-Ⅱ under normal start-up procedure were obtained. The results are in good agreement with the corresponding results of TITAM code. Meanwhile,the developed code can be more precise in analyzing the start-up of TOPAZ-Ⅱ,and provide reference for the design of the control system.关键词
TOPAZ-Ⅱ系统/反应堆启动/辐射器/数值计算Key words
TOPAZ-Ⅱ system/reactor start-up/radiator/numerical simulation分类
能源科技引用本文复制引用
张文文,陈荣华,田文喜,秋穗正,苏光辉..TOPAZ-Ⅱ系统启动过程模拟[J].原子能科学技术,2016,50(7):1200-1207,8.基金项目
国家自然科学基金资助项目(11505134) （11505134）
中国博士后科学基金资助项目(2015M572568) （2015M572568）
