Flow Boiling of Water on Nanocoated Surfaces in a Microchannel

被引：30

作者：

Hai Trieu Phan ^{[1
,2
]}

Caney, Nadia ^{[1
]}

Marty, Philippe ^{[1
]}

Colasson, Stephane ^{[2
]}

Gavillet, Jerome ^{[2
]}

机构：

[1] Univ Grenoble 1, LEGI, F-38041 Grenoble 9, France

[2] CEA, LITEN, F-38054 Grenoble 9, France

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2012年 / 134卷 / 02期

关键词：

contact angle; convective boiling; microchannel; nanocoating; surface wettability; HEAT-TRANSFER; CHANNELS;

D O I：

10.1115/1.4004935

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The experiments were performed to study the effects of surface wettability on flow boiling of water at atmospheric pressure. The test channel is a single rectangular channel 0.5 mm high, 5 mm wide and 180 mm long. The mass flux was set at 100 kg/m(2) s and the base heat flux varied from 30 to 80 kW/m(2). Water enters the test channel under subcooled conditions. The samples are silicon oxide (SiOx), titanium (Ti), diamond-like carbon (DLC), and carbon-doped silicon oxide (SiOC) surfaces with static contact angles of 26 deg, 49 deg, 63 deg, and 104 deg, respectively. The results show significant impacts of surface wettability on heat transfer coefficient. [DOI: 10.1115/1.4004935]

引用

页数：6

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