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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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Flow and heat transfer of nanofluid in an asymmetric channel with expanding and contracting walls suspended by carbon nanotubes: A numerical investigation

TL;DR: In this paper, the authors considered the flow of a nanofluid comprising a base fluid (water) and carbon nanotubes (CNTs) through a rectangular channel, where the channel's walls are preamble and channel is capable of dilating or squeezing in height.
Journal ArticleDOI

Review on Heat Transfer Mechanisms and Characteristics in Encapsulated PCMs

TL;DR: In this article, a review analyzes heat transfer mechanisms during the phase-change process and numerical analysis for heat transfer in macroencapsulated PCMs according to the shape of containment.
Journal ArticleDOI

Cattaneo-Christov heat flux feature on carbon nanotubes filled with micropolar liquid over a melting surface: A stream line study

TL;DR: In this article, the authors explored the significance of C-C (Cattaneo-Christov) heat flux future on carbon nanotubes embedded with micropolar liquid over a melting surface.
Journal ArticleDOI

Axisymmetric mixed convective stagnation-point flow of a nanofluid over a vertical permeable cylinder by Tiwari-Das nanofluid model

TL;DR: In this article, the steady axisymmetric mixed convective stagnation point flow of an incompressible electrically conducting nanofluid over a vertical permeable circular cylinder in the presence of transverse magnetic field is investigated.
Journal ArticleDOI

Effect of the physical properties of different vegetable oil-based nanofluids on MQLC grinding temperature of Ni-based alloy

TL;DR: In this article, the authors used carbon nanotube (CNT) nanoparticles for the experiment on minimum-quantity lubricant cooling (MQLC) grinding of Ni-based alloy.
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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