以水为工质, 在维持热流密度及进口水温不变的条件下, 分别对3个实心锥形喷嘴进行“无沸腾”喷雾冷却温度均匀性实验, 研究了喷嘴几何特性、喷射高度、喷嘴进口压力对换热表面温度均匀性的影响。结果表明, 换热表面温度标准差S(T)受喷嘴喷射口径、喷射高度、进口压力影响, 而喷嘴锥角对其没有明显影响。

Keeping the heat flux and the temperature of water inlet constant, three full cone nozzles are applied to study the temperature uniformity of spray cooling in non-boiling regime. The influences of nozzle geometry characteristics, spray distance and inlet pressure are studied respectively. The results show that the standard deviation of the surface temperature is affected by nozzle diameter, spray distance and inlet pressure, while the nozzle cone angle has no significant impact on the temperature uniformity.