套管式直流蒸汽发生器动态特性仿真研究

套管式直流蒸汽发生器是一种采用双面传热的新型蒸汽发生器.在中心管和环管外侧与环形通道流体间热流密度相等的假设基础上,合理选择集中参数并应用可动边界的处理方法对套管式直流蒸汽发生器传热管进行了动态仿真.仿真结果与热工水力定性机理分析结果及相关的试验结果相符,从而验证了仿真方法是有效的.

Simulation study of dynamic characteristic of once-through steam generator in annuli tube

The once-through steam generator in annuli tube is a new type of steam generator which applies double side to transfer heat.On the basis of the supposing that heat transfer from primary water in the center tube to secondary water is identified with that of from primary water outside the annuli to secondary water,lumped parameters that selected in reason with moving boundary is applied to simulate of dynamic characteristic of once-through steam generator in annuli tube.The results of simulation accord with the thermal-hydraulics analytical results and correlative experiment conclusions,which proves the method effectively.