A model of nanofluids effective thermal conductivity based on dimensionless groups

  • A. R. Moghadassi
  • S. Masoud Hosseini
  • D. Henneke
  • A. Elkamel
Article

Abstract

Thermal conductivity is an important parameter in the field of nanofluid heat transfer. This article presents a novel model for the prediction of the effective thermal conductivity of nanofluids based on dimensionless groups. The model expresses the thermal conductivity of a nanofluid as a function of the thermal conductivity of the solid and liquid, their volume fractions, particle size and interfacial shell properties. According to this model, thermal conductivity changes nonlinearly with nanoparticle loading. The results are in good agreement with the experimental data of alumina-water and alumina-ethylene glycol based nanofluids.

Keywords

dimensionless group model nanofluid particle size thermal conductivity 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • A. R. Moghadassi
    • 1
  • S. Masoud Hosseini
    • 1
  • D. Henneke
    • 2
  • A. Elkamel
    • 2
  1. 1.Department of Chemical Engineering, Faculty of EngineeringArak UniversityArakIran
  2. 2.Department of Chemical Engineering University of WaterlooOntarioCanada

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