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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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Investigation of thermal conductivity, viscosity, and electrical conductivity of graphene based nanofluids

TL;DR: In this paper, stable and well dispersed functionalized functionalized graphene-ethylene glycol (EG) + distilled water nanofluids having graphene nano-sheets (GnS) volume concentration between 0.041 and 0.395 vol.
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Synthesis and characterization of nanofluid for advanced heat transfer applications

TL;DR: In this article, the size/microstructure of the nanoparticles are characterized by X-ray diffraction and transmission electron microscopy, and the thermal conductivity of the nanofluid is measured using a modified thermal comparator.
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Molecular dynamics simulation of effective thermal conductivity and study of enhanced thermal transport mechanism in nanofluids

TL;DR: In this article, an equilibrium molecular dynamics simulation was used to model a nanofluid system and the thermal conductivity was computed using the Green-Kubo method for various volume fractions of nanoparticle loadings.
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A Review of Thermal Conductivity Data, Mechanisms and Models for Nanofluids

TL;DR: A review of the physical mechanisms proposed to explain the thermal conductivity of nanofluids is presented in this article, where the authors discuss some controversial issues such as data inconsistencies, the sufficiency and suitability of classical and new mechanisms, and the discrepancies between experimental data and model predictions.
Journal ArticleDOI

A review on thermophysical properties of nanoparticle dispersed phase change materials

TL;DR: A review of current experimental studies on variations in thermophysical properties of phase change material (PCM) due to dispersion of nanoparticles is presented in this paper, where the authors focus on the studies that describe how the surface, chemical and physical properties of nanoparticle could affect the thermal properties of PCM with the help of available explanations.
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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