蒸汽发生器稳态运行特性的数值模拟研究  

Numerical Simulation on Steady Operation Characteristic of the Steam Generator

作　　者：陈佳跃[1] 张小英[1] 

机构地区：[1]华南理工大学电力学院,广东广州510640

出　　处：《核科学与工程》2013年第4期384-391,共8页Nuclear Science and Engineering

基　　金：国家自然科学基金(10702020;51176052);广东省科技攻关项目(2009B010900020);华南理工大学中央高校基本科研业务费专项资金(2009ZM0279)

摘　　要：基于四方程漂移流模型,采用一维分布参数方法对U型管蒸汽发生器的一次侧、二次侧、传热管和蒸汽室进行模拟。采用基于交错网格的一阶迎风差分格式对模型方程进行离散化,通过交叉计算热工-水力过程来迭代求解稳态运行特性,并编制了基于MATLAB语言的仿真程序。利用此程序对秦山核蒸汽发生器的稳态运行工况下的热工水力过程进行计算,将结果与RELAP5程序的计算结果进行比较,并分析了100%、75%、50%、30%、15%负荷下的蒸汽发生器的运行特性。Based on the four-equation drift flux model, this paper establishes a one-dimension distribution model for the vertical U tube steam generator. The model considers the area of the primary side, the secondary side, the U tube and the steam dome. Firstly, the discrete equations are obtained by using the first order difference method with the staggered grid, and solves with iteration by applying intersected calculation of thermal and hydraulic process. This work is compiled into a simulated program with the MATLAB software. Applying the program to simulate the thermal-hydraulic parameters under steady state operation of Qinshan NPP steam generator（SG）, and the calculation is compared with the RELAP5 program. Finally, the operation characteristics of steam generator under 100%, 75%, 50%, 30%, 15 % powers are computed and analyzed.

关 键 词：蒸汽发生器 稳态运行 漂移流模型 数值模拟 

分 类 号：TL353[核科学技术—核技术及应用]