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Journal ArticleDOI

Anomalous thermal conductivity enhancement in nanotube suspensions

Stephen U. S. Choi, +4 more
- 24 Sep 2001 - 
- Vol. 79, Iss: 14, pp 2252-2254
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TLDR
In this paper, the authors have produced nanotube-in-oil suspensions and measured their effective thermal conductivity, which is anomalously greater than theoretical predictions and is nonlinear with nanotubes loadings.
Abstract
We have produced nanotube-in-oil suspensions and measured their effective thermal conductivity. The measured thermal conductivity is anomalously greater than theoretical predictions and is nonlinear with nanotube loadings. The anomalous phenomena show the fundamental limits of conventional heat conduction models for solid/liquid suspensions. We have suggested physical concepts for understanding the anomalous thermal behavior of nanotube suspensions. In comparison with other nanostructured materials dispersed in fluids, the nanotubes provide the highest thermal conductivity enhancement, opening the door to a wide range of nanotube applications.

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A review on the use of carbon nanotubes nanofluid for energy harvesting system

TL;DR: In this paper, the authors reviewed recent progress and applications of CNT nanofluids in energy harvesting system especially solar collectors, and discussed the preparation methods, factors for enhancing thermal conductivity and optical properties.
Journal ArticleDOI

Measurement of machining forces and surface roughness in turning of AISI 304 steel using alumina-MWCNT hybrid nanoparticles enriched cutting fluid

TL;DR: In this paper, a hybrid nano-cutting fluid has been developed by mixing alumina based cutting fluid with multi walled carbon nano tube (MWCNT) nanoparticles in different volumetric concentrations of 0.25, 0.75 and 1.25vol%.
Journal ArticleDOI

Heat Transfer Study of Water-based Nanofluids Containing Titanium Oxide Nanoparticles

TL;DR: In this article, the authors presented the heat transfer study of TiO 2 /water Nanofluids with various volume concentrations of 0.1, 0.25,0.5%, 0.5% and 0.75%.
Journal ArticleDOI

CFD investigation of nanofluid effects (cooling performance and pressure drop) in mini-channel heat sink

TL;DR: In this paper, the effect of a nanoparticle volume fraction on the convective heat transfer coefficient was investigated in different Reynolds numbers and correlated equations were obtained for Nusselt number and friction factor, and its accuracies were acceptable.
Journal ArticleDOI

MHD Boundary Layer Slip Flow and Heat Transfer of Nanofluid Past a Vertical Stretching Sheet with Non-Uniform Heat Generation/Absorption

TL;DR: In this paper, an investigation of the magnetohydrodynamics boundary layer slip flow over a vertical stretching sheet in nanofluid with non-uniform heat generation/absorbtion in the presence of a uniform transverse magnetic field has been carried out.
References
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Journal ArticleDOI

Helical microtubules of graphitic carbon

Sumio Iijima
- 01 Nov 1991 - 
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
Book

A Treatise on Electricity and Magnetism

TL;DR: The most influential nineteenth-century scientist for twentieth-century physics, James Clerk Maxwell (1831-1879) demonstrated that electricity, magnetism and light are all manifestations of the same phenomenon: the electromagnetic field as discussed by the authors.
Book

Physical properties of carbon nanotubes

TL;DR: In this paper, an introductory textbook for graduate students and researchers from various fields of science who wish to learn about carbon nanotubes is presented, focusing on the basic principles behind the physical properties and giving the background necessary to understand the recent developments.
Journal ArticleDOI

Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles

TL;DR: In this paper, it was shown that a "nanofluid" consisting of copper nanometer-sized particles dispersed in ethylene glycol has a much higher effective thermal conductivity than either pure or pure glycol or even polyethylene glycol containing the same volume fraction of dispersed oxide nanoparticles.
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