Boiling heat transfer of nanofluids: The effect of heating surface modification

Dongsheng Wen, Michael Corr, Xiao Hu, Guiping Lin

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

This work reports a comparative study of nucleate boiling heat transfer with aqueous alumina nanofluids on two specially designed surfaces. The detailed surface characterization before and after boiling reveals that the modification of heating surface geometries is mainly responsible for many contradictory results reported in literature. The enhancement or deterioration of boiling heat transfer by nanofluids is dependent upon different surface modifications that strongly affected by the relative size between particles suspended in the liquid and the heating surface geometry, and their interactions. The surface modification by nanoparticles is an inherent feature of nanofluids, and would occur each time after boiling. The experimental results would be affected by the number and frequency of the usage of boiling surfaces.

Original languageEnglish
Pages (from-to)480-485
Number of pages6
JournalInternational Journal of Thermal Sciences
Volume50
Issue number4
DOIs
StatePublished - Apr 2011
Externally publishedYes

Keywords

  • Boiling
  • Nanofluids
  • Nanoparticles
  • Surface property
  • Wetting

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