NANO-ENGINEERED SURFACES WITH HETEROGENEOUS WETTABILITY FOR BOILING HEAT TRANSFER ENHANCEMENT

被引：0
|
作者：
Betz, Amy Rachel [1 ]
Jenkins, James
Kim, Chang-Jin 'CJ'
Attinger, Daniel [1 ]
机构：
[1] Columbia Univ, Dept Mech Engn, New York, NY 10027 USA
来源：
PROCEEDINGS IF THE ASME 9TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS AND MINICHANNELS 2011, VOL 1 | 2012年
关键词：
NUCLEATION SITE DENSITY; POOL;
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：
In this work we describe the manufacturing and characterization of multi-scale patterned heterogeneous wettability surfaces. We find drastic enhancements of the pool boiling performance in water. Compared to a hydrophilic SiO2 surface with a wetting angle of 7 degrees, we find that surfaces combining superhydrophilic and superhydrophobic patterns can increase the heat transfer coefficient (HTC) by 300% and can increase the critical heat flux (CHF) by more than 100%.
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页码：63 / +
页数：3
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