Issue |
MATEC Web Conf.
Volume 286, 2019
14th Congress of Mechanics (CMM2019)
|
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Article Number | 08003 | |
Number of page(s) | 3 | |
Section | Heat Transfers, Mass Transfers, Renewable Energies and Environment | |
DOI | https://doi.org/10.1051/matecconf/201928608003 | |
Published online | 14 August 2019 |
Thermal transfer of Nanofluids based on carbon nanotubes/glycerol and study of their rheological behavior
Department of Physics, Faculty of Sciences Ain Chock, Hassan II University, 20470 Casablanca, Morocco
In the field of heat transfer, the use of the properties of rheological behavior inherent to suspensions of nanoparticles in heat transfer fluids has been the subject of several years of work. Our study concerns the particular case of suspensions of multilayered carbon nanotubes (MNTCs) in glycerol. We highlight the effect of the mass fraction φ of (MNTCs) on the rheology of the solutions for 0.1% ≤ φ ≤1%, on the temperature [30-80°C] and the effect on a heat exchanger. The experimental results obtained are described by viscoplastic models for which the yield stress increases with φ. We then propose a law of polynomial evolution of the apparent viscosity as a function of the volume fraction for each value of the shear rate varying from 0s-1 to 100s-1.
Key words: Rheology / Nanofluid / carbon nanotube / empirical law / heat exchanger
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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