Thermal performance of nanofluids in microchannel equipped with a synthetic jet actuator

Ann Lee*, Dezheng Darson Li, Ghar Ek Lau, Guan Heng Yeoh

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

1 Citation (Scopus)

Abstract

Numerical investigations of heat transfer enhancement in three-dimensional micro-channels with single synthetic jet using Al2O3-water, CuO-water and TiO2-water combinations were conducted. The effects of different types of nanoparticles at particle volume concentrations of 1%, 2% and 5% on the thermal performance in the micro-channel were examined. The numerical tool was validated against existing experimental data on the heat transfer characteristic of nanofluids in micro-channel. Heat transfer enhancement using nanofluids based on the eulerian model was assessed for the cases without synthetic jet operator and with synthetic jet operator. In general, the thermal performance was greatly influenced by the thermal conductivity and dynamic viscosity of the type of nanofluids used. As the particle volume concentration increased, the heat transfer performance also improved. The result showed that the heat transfer performance of nanofluids with Al2O3 and CuO used in this study was better than that of pure water with the operation of the synthetic jet actuator. Overall, nanofluids with Al2O3-water at 5% particle volume concentration showed the best cooling performance whereas nanofluids with TiO2 fails to improve the thermal performance.

Original languageEnglish
Title of host publicationIHTC 2014
Subtitle of host publicationProceedings of the 15th International Heat Transfer Conference
Place of PublicationKyoto, Japan
PublisherInternational Heat Transfer Conference Digital Library
Number of pages15
Publication statusPublished - 2014
Externally publishedYes
EventInternational Heat Transfer Conference (15th : 2014) - Kyoto, Japan
Duration: 10 Aug 201415 Aug 2014

Other

OtherInternational Heat Transfer Conference (15th : 2014)
Abbreviated titleIHTC-15
CountryJapan
CityKyoto
Period10/08/1415/08/14

Keywords

  • Computational fluid dynamics
  • Heat transfer enhancement
  • MEMS (Micro Electro Mechanical Systems)
  • Electronic cooling
  • Micro-channel
  • Nanofluids

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