Mechanism of Enhancing Heat Transfer Performance of an Automobile Air-conditioner Evaporator Plating with Hydrophilic Film

摘要：

Analyzing the heat transfer processes of automobile air-conditioner evaporators with & without hydrophilic film, it was recognized that hydrophilic film affects the heat transfer performance of automobile air-conditioner evaporators on the following three aspects: effective heat transfer area,heat transfer coefficient and temperature difference. Effective heat transfer area coefficient, a new parameter, was introduced and measured experimentally. A mathematical model was established to simulate the heat transfer processes of both the evaporator plating with hydrophilic film and the one without hydrophilic film, which was verified by experiments. The results reveal that the heat transfer coefficient decreases, but effective heat transfer area and temperature difference increase,so the total heat transferred increases by 5％ while the evaporator plating fin with hydrophilic film.

作者: Cao X L Zhang M X Ouyang Q Feng M K

作者单位: School of Energy Science and Engineering,Central South University,Changsha 410083,P.R.China

会议类型: 国际会议

会议名称: ICCR 2008 第四届国际低温与制冷工程大会

会议地点: 上海

会议语种:英文

页码: 361-365

在线出版日期: 2008-04-05（万方平台首次上网日期，不代表论文的发表时间）