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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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Journal ArticleDOI

Combined effects of viscous dissipation and Joule heating on MHD Sisko nanofluid over a stretching cylinder

TL;DR: In this article, a mathematical model is presented to discuss magnetohydrodynamic Sisko fluid flow over a stretching cylinder with cumulative effects of viscous dissipation and Joule heating in the presence of nanoparticles.
Journal ArticleDOI

A large increase in the thermal conductivity of carbon nanotube/polymer composites produced by percolation phenomena

TL;DR: In this paper, the authors studied the thermal conductivity of carbon nanotube/polymer composites as a function of the CNT volume fraction using a steady-state measurement technique.
Journal ArticleDOI

Graphene and CNT impact on heat transfer response of nanocomposite cylinders

TL;DR: In this paper, the authors described in this paper was supported by National Natural Science Foundation of China (Grant no. 11972204) and Natural Sciences and Engineering Research Council of Canada (NSERC under grant RGPIN-217525).
Journal ArticleDOI

Thermal conductivity enhancement of ethylene glycol and water with graphene nanoplatelets

TL;DR: In this article, the effective thermal conductivity of ethylene glycol and water with graphene nanoplatelets was investigated using transient hot wire technique and the results showed that the interfacial thermal resistance between graphene sheet and water was 2.2 × 10−8 m2 KW−1 and 1.5 × 10 −8 m 2 KW −1 respectively for the present nanofluids.
Journal ArticleDOI

Effect of nanoparticles in nanofluid on thermal performance in a miniature thermosyphon

TL;DR: In this paper, the effect of nanoparticles in the nanofluid on the thermal performance in a miniature thermosyphon was investigated, and the experimental results showed that the water-CuO nanoflids can greatly enhance the boiling heat transfer performance of the evaporator in thermosymphon compared with that using water at subatmospheric pressure conditions.
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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