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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Magnetohydrodynamic Flow and Heat Transfer of Nanofluids in Stretchable Convergent/Divergent Channels
TL;DR: In this paper, the authors analyzed the heat transfer in the flow of water-based nanofluids in a channel with non-parallel stretchable walls, and the influence of the emerging parameters on the velocity and temperature profiles was highlighted with the help of graphs coupled with comprehensive discussions.
Journal ArticleDOI
Influence of alumina/MWCNT hybrid nanoparticle additives on tribological properties of lubricants in turning operations
TL;DR: In this article, a hybrid lubricant with improved thermal and tribological properties was developed by blending multiwalled carbon nanotubes (MWCNTs) with alumina-based nanoparticles into cutting fluid at fixed volumetric proportions (10:90).
Journal ArticleDOI
Comparatively experimental study on the boiling thermal performance of metal oxide and multi-walled carbon nanotube nanofluids
M.M. Sarafraz,Faramarz Hormozi +1 more
TL;DR: In this article, the authors focused on the flow boiling heat transfer characteristics of metal oxide and multi-walled carbon nanotube nanofluids inside an annulus heat exchanger.
Journal ArticleDOI
Effect of temperature and sonication time on nanofluid thermal conductivity measurements by nano-flash method
TL;DR: In this article, a detailed procedure for the implementation and evaluation of thermal conductivity of nanofluids with water as base fluid and at different volume concentrations of Al2O3 was presented.
Journal ArticleDOI
Heat transfer enhancement in the boundary layer flow of hybrid nanofluids due to variable viscosity and natural convection.
TL;DR: The noteworthy finding is that the thermal conductivity is greater in hybrid nanofluid than that of a regular nan ofluid in the presence of specified factors.
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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