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Effect of particle size on the thermal conductivity of nanofluids containing metallic nanoparticles

Warrier, Pramod and Teja, Amyn (2011) Effect of particle size on the thermal conductivity of nanofluids containing metallic nanoparticles. Nanoscale Research Letters, 6 (1). pp. 1-6.

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Official URL: http://www.nanoscalereslett.com/content/6/1/247

Abstract

A one-parameter model is presented for the thermal conductivity of nanofluids containing dispersed metallic nanoparticles. The model takes into account the decrease in thermal conductivity of metal nanoparticles with decreasing size. Although literature data could be correlated well using the model, the effect of the size of the particles on the effective thermal conductivity of the nanofluid could not be elucidated from these data. Therefore, new thermal conductivity measurements are reported for six nanofluids containing silver nanoparticles of different sizes and volume fractions. The results provide strong evidence that the decrease in the thermal conductivity of the solid with particle size must be considered when developing models for the thermal conductivity of nanofluids.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10934
Deposited By:JNCASR
Deposited On:14 Sep 2011 05:41
Last Modified:14 Sep 2011 05:41

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