【摘要】 实验研究和理论分析了负压下液态金属钠在环形通道中垂直上升流动时的沸腾机理及特性,得到了各种工况下大量有关液钠沸腾的数据及曲线。着重分析讨论了液钠沸腾曲线特征及沸腾机理。实验参数如下:热流密度:12.77W/cm~2-78.73 W/cm~2;液钠流速:0.047 m/s-0.674 m/s;饱和压力:850 Pa-9870 Pa;进口过冷度:63.12℃-270.97℃。更多还原

【Abstract】 On the basis of experimental study and theoritical analysis,this paper deals with the boiling mechanism of liquid sodium and its boiling curves’ charateristics in an annular channel with verti- cally upward flaw at negative pressure.Many data and curves of liquid sodium boiling were ob- tained in different operating conditions.The authors made in-depth discussions on boiling mecha- nism of liquid sodium and its boilng curves’ characteristics.The experimental results are of practi- cal engineering significance for the design of Liquid Metal Fast Breeder Reactor(LMBR). Experimental parameters are as follow: Heat Flux:12.77 W/cm~2-78.73 W/cm~2 Flow Rate:0.047 m/s-0.674 m/s Saturation Pressure:850 Pa-9870 Pa Inlet Subcooling:63.12℃-270.97℃更多还原