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
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Tiwari-Das nanofluid model for magnetohydrodynamics (MHD) natural-convective flow of a nanofluid adjacent to a spinning down-pointing vertical cone
TL;DR: In this article, the Tiwari-Das model has been formulated based on the natural-convective flow of an electrically conducting nanofluid adjacent to a spinning down-pointing vertical cone in the presence of transverse magnetic field.
Journal ArticleDOI
Experimental study of using γ-Al2O3–water nanofluid flow through aluminum foam heat sink: Comparison with numerical approach
A.M. Bayomy,M. Z. Saghir +1 more
TL;DR: In this paper, the authors investigated the thermal performance of an ERG aluminum foam heat sink for the Intel core i7 processor, which was subjected to a steady flow of γ-Al2O3-water nanofluid covering the entire non-Darcy flow regime (210-631 Reynolds numbers).
Journal ArticleDOI
Enhanced thermophysical properties of multiwalled carbon nanotubes based nanofluids. Part 1: Critical review
TL;DR: In this article, available experimental data have been mapped and the discrepancies among them have been highlighted and compared using the available physical models, showing that the proposed theories seem not capable of predicting the experimental data with reasonable accuracy.
Journal ArticleDOI
In tube convection heat transfer enhancement: SiO2 aqua based nanofluids
TL;DR: In this article, an experimental investigation is carried out on internal convective heat transfer of SiO2/water nanofluids in a copper tube for a fully turbulent regime.
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.
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.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
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