Journal ArticleDOI
Anomalous thermal conductivity enhancement in nanotube suspensions
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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.read more
Citations
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Buongiorno\'s model for fluid flow around a moving thin needle in a flowing nanofluid: A numerical study
Rida Ahmad,Meraj Mustafa,S. Hina +2 more
TL;DR: In this paper, the problem of nanofluid flow over a thin needle moving axially with uniform velocity in the same direction as that of the external free stream is addressed.
Journal ArticleDOI
Combined heat and mass transfer of third‐grade nanofluids over a convectively‐heated stretching permeable surface
TL;DR: In this article, the authors investigated the buoyancy-induced flows of third-grade nanofluids along a vertical permeable stretching sheet, and a numerical solution was obtained for the combined heat and mass transfer during convective cooling of the stretching sheet.
Journal ArticleDOI
Nanofluid Thermal Conductivity and Effective Parameters
TL;DR: In this paper, the influence of various parameters, including base liquid, temperature, nanoparticles concentration, nanoparticle size and shape, and the addition of surfactant, on nanofluid thermal conductivity is discussed.
Journal ArticleDOI
Entropy generation optimization in flow of Prandtl–Eyring nanofluid with binary chemical reaction and Arrhenius activation energy
TL;DR: In this paper, the authors analyzed the chemically reactive flow of Prandtl-Eyring nanofluid and calculated the total entropy as a function of temperature, velocity and concentration.
Journal ArticleDOI
The thermal conductivity, viscosity, and cloud points of bentonite nanofluids with n-pentadecane as the base fluid
TL;DR: In this article, the thermal conductivity and viscosity of 1-4-volume bentonite particles dispersed in n-pentadecane were measured at temperatures between 298 k and 393 k.
References
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Journal ArticleDOI
Helical microtubules of graphitic carbon
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.
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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.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
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