快堆螺旋管式直流蒸汽发生器的热工水力分析模型

Model for thermal hydraulic analysis of once through helical coiled steam generator in LMFBRs

针对钠加热的螺旋管式直流蒸汽发生器建立了一个稳态的蒸汽发生器分析模型，根据所建模型编制了数值计算程序。该程序用于计算快堆蒸汽发生器的热工水力分布参数，分析其冷却剂的稳态流动特性及热量传输特性。利用此程序对法国４５ＭＷ模型蒸汽发生器进行了计算，其结果与发表的实际数据吻合很好。

A steady mathematical model for thermal hydraulic analysis of once through helical coiled steam generator heated by sodium in liquid metal fast breeder reactors(LMFBRs) is developed, on basis of nonequilibrium four equation drift flux model. The computer code based on this model has been used to analyse the French 45 MW mock up steam generator, a good agreement between the code predictions and the experimental results is obtained, which indicates the validity of this model.