Condensation heat transfer on superhydrophobic surfaces

Nenad Miljkovic, Evelyn N. Wang

Research output: Contribution to journalArticle

Abstract

Condensation is a phase change phenomenon often encountered in nature, as well as used in industry for applications including power generation, thermal management, desalination, and environmental control. For the past eight decades, researchers have focused on creating surfaces allowing condensed droplets to be easily removed by gravity for enhanced heat transfer performance. Recent advancements in nanofabrication have enabled increased control of surface structuring for the development of superhydrophobic surfaces with even higher droplet mobility and, in some cases, coalescence-induced droplet jumping. Here, we provide a review of new insights gained to tailor superhydrophobic surfaces for enhanced condensation heat transfer considering the role of surface structure, nucleation density, droplet morphology, and droplet dynamics. Furthermore, we identify challenges and new opportunities to advance these surfaces for broad implementation in thermofluidic systems.

Original languageEnglish (US)
Pages (from-to)397-406
Number of pages10
JournalMRS Bulletin
Volume38
Issue number5
DOIs
StatePublished - May 1 2013
Externally publishedYes

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Keywords

  • coating
  • nanoscale
  • nucleation & growth
  • oxidation
  • phase transformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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