Microscopic observation of frost behaviors at the early stage of frost formation on hydrophobic surfaces

被引：36

作者：

Kim, Hisuk ^{[1
]}

Kim, Donghee ^{[1
]}

Jang, Hanmin ^{[1
]}

Kim, Dong Rip ^{[1
]}

Lee, Kwan-Soo ^{[1
]}

机构：

[1] Hanyang Univ, Sch Mech Engn, Wangsimni Ro 220, Seoul 133791, South Korea

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 97卷

基金：

新加坡国家研究基金会;

关键词：

Frost formation; Hydrophobic; Surface treatment; Frost retardation; Early stage of frost; FIN HEAT-EXCHANGERS; DIMENSIONLESS CORRELATIONS; DEFROSTING CHARACTERISTICS; ICE NUCLEATION; GROWTH;

D O I：

10.1016/j.ijheatmasstransfer.2016.02.020

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Microscopic seed behavior in the early stage of frost formation was experimentally observed with different fin surface contact angles from bare to superhydrophobicity under air-source heat pump operating conditions. The seed average height, radius, number, and frost density at the early stage of frost were analyzed. As the surface contact angle increased, the seed average height and number increased, while the seed radius and frost density decreased. A correlation with a Fourier number was proposed from the measured data. With the correlation, the large and small frost retardation effect regions were identified. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：861 / 867

页数：7

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