板式蒸发冷却空冷器的阻力和传热特性实验研究  

Experimental Study on Resistance and Heat Transfer Characteristics of Plate Evaporative Air Cooler

作　　者：李春光[1] 张旭[1] 黄晓庆[1] 田震[1] 

机构地区：[1]同济大学暖通空调与燃气研究所,上海200092

出　　处：《制冷学报》2013年第2期24-27,共4页Journal of Refrigeration

基　　金：国家"十二五"科技支撑计划(2011BAJ08B09)资助项目~~

摘　　要：通过改变风量、水量和增湿供水量,对板式蒸发空冷器阻力及传热特性进行实验研究,得到干工况下空气侧和热水侧的阻力及对流换热系数关联式。实验结果表明,增湿工况下,空气侧阻力几乎不受影响,换热系数随增湿供水量增加而增大,约为干工况时的6倍。The resistance and heat transfer characteristics of a plate evaporative air cooler are investigated experimentally through varying the flow rate of air, hot water and humidification water. Correlations for the air side and hot water side pressure drop and convection heat transfer coefficient are obtained. The results of experiment show that the pressure drop of air side is not affected by humidification water. The heat transfer coefficient increases with the increase of humidification water flow rate and it is about 5 times lager than the one under dry condition.

关 键 词：喷雾增湿 空冷器 阻力 传热系数 

分 类 号：TK124[动力工程及工程热物理—工程热物理]