喷雾冷却系统启动性能的实验研究

喷雾冷却系统是典型的两相回路系统,其正常工作的前提是顺利启动。为了研究喷雾冷却系统的运行特性和性能,搭建了闭式喷雾冷却实验台并开展了相关研究,系统中的关键部件为齿轮泵、喷嘴、加热器和冷凝器等。实验中对喷雾腔内的液滴聚集现象进行了观察,动态测量了系统沿程的压力和温度分布。通过对实验结果的分析归纳出了影响系统启动和运行的关键因素,给出泵、热沉和加热器启动的合理顺序以及启动前喷雾腔内液体积聚状态对启动性能的影响。

Experimental Investigation on Startup Performance of Spray Cooling System

Closed-loop spray cooling experiments had been performed to investigate the spray cooling staring performance and mechanics,which is the precondition of two-phase fluid loop's working.The experimental system mainly consists of pump,atomizer on air pressure,heater and condenser.Transient temperature and pressure throughout the fluid loop were acquired to analyze the influencing factors of the designed spray cooling loop.Some conclusions can be gotten about the starting sequence of pump,heat sink and heater a...