Multiwalled carbon nanotubes (CNTs) have been treated by using a mechanochemical reaction method to enhance their dispersibility for producing CNT nanofluids. The thermal conductivity was measured by a short hot wire technique and the viscosity was measured by a rotary viscometer. The thermal conductivity enhancement reaches up to 17.5% at a volume fraction of 0.01 for an ethylene glycol based nanofluid. Temperature variation was shown to have no obvious effects on the thermal conductivity enhancement for the as prepared nanofluids. With an increase in the thermal conductivity of the base fluid, the thermal conductivity enhancement of a nanofluid decreases. At low volume fractions (<0.4 Vol%), nanofluids have lower viscosity than the corresponding base fluid due to lubricative effect of nanoparticles. When the volume fraction is higher than 0.4 Vol%, the viscosity increases with nanoparticle loadings. The prepared nanofluids, with no contamination to medium, good fluidity, stability, and high thermal conductivity, would have potential applications as coolants in advanced thermal systems.
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ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels
June 23–25, 2008
Darmstadt, Germany
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4834-5
PROCEEDINGS PAPER
Thermal Transport Properties of Nanofluids Containing Carbon Nanotubes
Huaqing Xie,
Huaqing Xie
Shanghai Second Polytechnic University, Shanghai, China
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Lifei Chen,
Lifei Chen
Shanghai Second Polytechnic University, Shanghai, China
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Yang Li,
Yang Li
Shanghai Second Polytechnic University, Shanghai, China
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Wei Yu
Wei Yu
Shanghai Second Polytechnic University, Shanghai, China
Search for other works by this author on:
Huaqing Xie
Shanghai Second Polytechnic University, Shanghai, China
Lifei Chen
Shanghai Second Polytechnic University, Shanghai, China
Yang Li
Shanghai Second Polytechnic University, Shanghai, China
Wei Yu
Shanghai Second Polytechnic University, Shanghai, China
Paper No:
ICNMM2008-62210, pp. 1051-1055; 5 pages
Published Online:
June 11, 2009
Citation
Xie, H, Chen, L, Li, Y, & Yu, W. "Thermal Transport Properties of Nanofluids Containing Carbon Nanotubes." Proceedings of the ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. Darmstadt, Germany. June 23–25, 2008. pp. 1051-1055. ASME. https://doi.org/10.1115/ICNMM2008-62210
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