TY - JOUR
T1 - Surface wettability effects on critical heat flux of boiling heat transfer using nanoparticle coatings
AU - Hsu, Chin-Chi
AU - Chen, Ping-Hei
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-C1-014-12
Acknowledgements: The financial support for this study was provided by the KAUST Award under Project Number KUK-C1-014-12.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.
PY - 2012/6
Y1 - 2012/6
N2 - This study investigates the effects of surface wettability on pool boiling heat transfer. Nano-silica particle coatings were used to vary the wettability of the copper surface from superhydrophilic to superhydrophobic by modifying surface topography and chemistry. Experimental results show that critical heat flux (CHF) values are higher in the hydrophilic region. Conversely, CHF values are lower in the hydrophobic region. The experimental CHF data of the modified surface do not fit the classical models. Therefore, this study proposes a simple model to build the nexus between the surface wettability and the growth of bubbles on the heating surface. © 2012 Elsevier Ltd. All rights reserved.
AB - This study investigates the effects of surface wettability on pool boiling heat transfer. Nano-silica particle coatings were used to vary the wettability of the copper surface from superhydrophilic to superhydrophobic by modifying surface topography and chemistry. Experimental results show that critical heat flux (CHF) values are higher in the hydrophilic region. Conversely, CHF values are lower in the hydrophobic region. The experimental CHF data of the modified surface do not fit the classical models. Therefore, this study proposes a simple model to build the nexus between the surface wettability and the growth of bubbles on the heating surface. © 2012 Elsevier Ltd. All rights reserved.
UR - http://hdl.handle.net/10754/599818
UR - https://linkinghub.elsevier.com/retrieve/pii/S0017931012001524
UR - http://www.scopus.com/inward/record.url?scp=84859709983&partnerID=8YFLogxK
U2 - 10.1016/j.ijheatmasstransfer.2012.03.003
DO - 10.1016/j.ijheatmasstransfer.2012.03.003
M3 - Article
SN - 0017-9310
VL - 55
SP - 3713
EP - 3719
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 13-14
ER -