Nano Archive

Model for Heat Conduction in Nanofluids

Kumar, D. Hemanth and Patel, Hrishikesh E. and Kumar, V. R. Rajeev and Sundararajan, T. and Pradeep, T. and Das, Sarit K (2004) Model for Heat Conduction in Nanofluids. Physical Review Letters, 93 (14). p. 144301. ISSN 0031-9007

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A comprehensive model has been proposed to account for the large enhancement of thermal conductivity in nanofluids and its strong temperature dependence, which the classical Maxwellian theory has been unable to explain. The dependence of thermal conductivity on particle size, concentration, and temperature has been taken care of simultaneously in our treatment. While the geometrical effect of an increase in surface area with a decrease in particle size, rationalized using a stationary particle model, accounts for the conductivity enhancement, a moving particle model developed from the Stokes-Einstein formula explains the temperature effect. Predictions from the combined model agree with the experimentally observed values of conductivity enhancement of nanofluids.

Item Type:Article
Subjects:Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:4493
Deposited By:JNCASR
Deposited On:02 Apr 2009 10:23
Last Modified:02 Apr 2009 10:23

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