对三种人字波纹翅片圆管换热器（HX）在干湿条件下作为流体冷却器的性能进行了实验研究。通过测量传热率和空气侧压降，研究了翅片间距和亲水涂层的影响，HX角设置为与垂直方向成约20°，这类似于典型商用V形盘管的半部分。雨淋冷却使容量和空气侧压降分别增加了2.78和2.28倍。此外，对于翅片间距为2.4毫米（0.09英寸）的换热器，雨淋冷却的容量提高了2%-30%与3毫米（0.118英寸）的线圈相比鳍间距。此外，与没有涂层的类似线圈相比，亲水涂层HX将HX容量提高5%-30%。未来的研究目标是在不增加风扇功耗的情况下获得更高的容量增强率。引文:ASHRAE交易- 第120卷第2部分，华盛顿州西雅图

An experimental study has been conducted to evaluate the performance of three herringbone wavy-fin round tube heat exchangers (HX) working as fluid coolers in both dry and wet conditions. The effect of fin spacing and hydrophilic coating was investigated by measuring heat transfer rate and air-side pressure drop with the HX angle set at approximately 20° from vertical, which is similar to half section of a typicalcommercial V-shaped coil. Deluge cooling increased bothHXcapacity and air-side pressure drop by a factor of up to 2.78 and 2.28 respectively. Furthermore, deluge cooling achieved 2%-30% higher capacity for HXs with fin spacing 2.4 mm (0.09 in.) compared to the coil with 3mm(0.118 in.) fin spacing. Also, a hydrophilic coated HX improves HX capacity by 5%-30%, compared to a similar coil without coating. Future studies would aim at obtaining higher capacity enhancement ratios with no increase in fan power consumption.