EFFECT OF 10 CU NANOSTRUCTURES ON HEAT TRANSFER CHARACTERISTICS OF SINGLE PHASE MICROCHANNEL HEAT SINK

被引：0

作者：

Ali, M. Yakut ^{[1
]}

Yang, Fanghao ^{[1
]}

Fang, Ruixian ^{[1
]}

Li, Chen ^{[1
]}

Khan, Jamil ^{[1
]}

机构：

[1] Univ S Carolina, Columbia, SC 29208 USA

来源：

PROCEEDINGS OF THE ASME/JSME 8TH THERMAL ENGINEERING JOINT CONFERENCE 2011, VOL 1 PTS A AND B | 2011年

关键词：

RECTANGULAR MICROCHANNELS; THERMAL MANAGEMENT; COPPER; NANOWIRES;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study experimentally assesses single phase heat transfer characteristics of a shallow rectangular microchannel heat sink whose surface is enhanced with copper nanowires (CuNWs). The hydraulic diameter of the channel is 672 pm and the bottom wall is coated with Cu nanowires (CuNWs) of 200 nm in diameter and 50 pm in length. CuNWs are grown on the Cu heat sink by electrochemical synthesis technique which is inexpensive and readily scalable. The heat transfer and pressure drop results of CuNWs enhanced heat sink are compared with that of bare copper heat sink using deionized (DI) water as the working fluid at Reynolds Number (Re) ranging from 106-636. The experimental results indicate an enhancement in Nusselt Number (Nu) at all Re with a maximum enhancement of 24% at Re = 106. The enhanced thermal performance is attributed to two properties of Cu nanowire arrays- improvement in surface wettability characteristics and increased heat transfer surface area.

引用

页码：989 / 998

页数：10

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