Thermal conductivity of AlN-ethanol nanofluids

Peng Hu, Wan Liang Shan, Fei Yu, Ze Shao Chen

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

Aluminum nitride (AlN) particles of 20 nm diameter were dispersed into ethanol by a two-step process, first magnetic striation and then ultrasonic agitation. Castor oil was added as a dispersant to improve the stability of the AlN suspension. The thermal conductivities of AlN-ethanol nanofluids were measured by a hot-disk method from 0.5 vol% to 4.0 vol% at temperatures of 273.15 K and 297.15 K. Results show about 20% increase in the thermal conductivity of ethanol with the addition of 4.0 vol% at 273.15 K, and a strong temperature dependence of the thermal conductivity.

Original languageEnglish (US)
Pages (from-to)1968-1973
Number of pages6
JournalInternational Journal of Thermophysics
Volume29
Issue number6
DOIs
StatePublished - Dec 1 2008
Externally publishedYes

Keywords

  • AlN
  • Ethanol
  • Nanofluid
  • Thermal conductivity

ASJC Scopus subject areas

  • Condensed Matter Physics

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