Condensation heat transfer enhancement by surface modification on a monolithic copper heat sink

Ding Jun Huang, Tzong-Shyng Leu

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

In this study, the condensation heat transfer performance on a pure copper surface, as well as a superhydrophobic-modified copper surface were compared. Differing from other condensation heat transfer experimental designs, a monolithic copper heat sink was utilized in this study to prevent contact thermal resistance and/or thermal conduction limitation of the thermal paste applied between the modified condensation surface and heat sink plate. This approach has not yet been documented in the literature. The superhydrophobic copper heat sink surface was prepared using a hydrogen peroxide immersion and fluorosilane polymer (EGC-1720) spin-coating. Experimental results show that the condensation heat transfer performance on the superhydrophobic copper surface is superior to that of a pure copper surface. Additionally, durability tests of the pure and superhydrophobic coating copper surfaces in a harsh vapor environment are discussed in this study.

Original languageEnglish
Pages (from-to)908-917
Number of pages10
JournalApplied Thermal Engineering
Volume75
DOIs
Publication statusPublished - 2015 Jan 22

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

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