Surface wettability effects on critical heat flux of boiling heat transfer using nanoparticle coatings

Chin-Chi Hsu, Ping-Hei Chen

Research output: Contribution to journalArticlepeer-review

125 Scopus citations

Abstract

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.
Original languageEnglish (US)
Pages (from-to)3713-3719
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume55
Issue number13-14
DOIs
StatePublished - Jun 2012
Externally publishedYes

Fingerprint

Dive into the research topics of 'Surface wettability effects on critical heat flux of boiling heat transfer using nanoparticle coatings'. Together they form a unique fingerprint.

Cite this