摘要
对微通道换热器进行了亲水表面处理,并对其性能进行了实验研究,分析了亲水处理对微通道换热器湿工况性能的影响。实验表明,亲水处理对换热器性能有利:与无涂层换热器相比,亲水处理换热器换热量最多增大7.0%,压降减小0.7%～18.9%。而随着翅片间距的减小和芯体厚度的增加,亲水处理带来的性能提升减弱。
The surface of the microchannel heat exchanger was dealt with hydrophilic coating; the performance of microchannel heat exchanger with hydrophilic surface coating was experimentally studied under different conditions, and the influence of hydrophilic coating on the performance of the heat changer under wet conditions was analyzed. The results indicated that hydrophilic surface coating has good effects on air side performance： the heat transfer capacity increases by a maximum of 7.0% and the pressure drop decreases by 0.7% - 18.9%. With the decrease of fin pitch and the increase of tube height, the performance improvement caused by hydrophilic surface coating decreases.
出处
《制冷技术》
2014年第2期7-10,共4页
Chinese Journal of Refrigeration Technology
关键词
微通道换热器
表面处理
换热性能
压降
Microchannel heat exchanger
Surface coating
Heat transfer performance
Pressure drop
