Philip, John ; Shima, P. D. ; Baldev Raj, (2007) Enhancement of thermal conductivity in magnetite based nanofluid due to chainlike structures Applied Physics Letters, 91 (20). 203108_1-203108_3. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v91/i20/p2031...
Related URL: http://dx.doi.org/10.1063/1.2812699
Abstract
We observe a dramatic enhancement of thermal conductivity in a nanofluid containing magnetite particles of average diameter of 6.7 nm under the influence of an applied magnetic field. The maximum enhancement in the thermal conductivity observed is 300% (k/kf = 4.0) at a particle loading of 6.3 vol%. The increase in thermal conductivity is attributed to the effective conduction of heat through the chainlike structures formed in the nanofluid. This finding is consistent with the theoretical prediction of enhanced thermal conductivity in nanofluid containing fractal aggregates [ R. Prasher et al., Appl. Phys. Lett.89, 143119 (2006) ].
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Aggregates (materials); Fractals; Heat Conduction; Iron Compounds; Magnetic Fluids; Magnetic Particles; Microfluidics; Nanotechnology; Thermal Conductivity |
| ID Code: | 91001 |
| Deposited On: | 15 May 2012 13:16 |
| Last Modified: | 15 May 2012 13:16 |
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