Research Paper

Journal of Nanoparticle Research

, Volume 11, Issue 7, pp 1713-1718

First online:

Influence of the particle size distribution on the thermal conductivity of nanofluids

  • K. B. HadjovAffiliated withUniversity of Chemical Technologies & Metallurgy Email author 
  • , D. P. DontchevAffiliated withUniversity of Chemical Technologies & Metallurgy

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In a previous study, we have obtained an equation to predict the thermal conductivity of nanofluids containing nanoparticles with conductive interface. The model is maximal particle packing dependent. In this study, the maximal packing is obtained as a function of the particle size distribution, which is the Gamma distribution. The thermal conductivity enhancement depends on the averaged particle size. Discussion concerning the influence of the suspension pH on the particle packing is made. The proposed model is evaluated using number of sets from the published experimental data to the thermal conductivity enhancement for different nanofluids.


Nanofluids Thermal conductivity Size distribution Size effect Colloids