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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Mhd free convection flow of a nanofluid past a vertical plate in the presence of heat generation or absorption effects
TL;DR: In this article, the numerical solution of steady natural convection boundary-layer flow of a nanofluid consisting of a pure fluid with nanoparticles along a permeable vertical plate in the presence of magnetic field, heat generation or absorption, and suction or injection effects is focused.
Journal ArticleDOI
Enhanced thermal conductivity of epoxy nanocomposites filled with hybrid filler system of triethylenetetramine-functionalized multi-walled carbon nanotube/silane-modified nano-sized silicon carbide
Kai Yang,Mingyuan Gu +1 more
TL;DR: In this paper, the thermal conductivity of epoxy composites with hybrid filler system is higher than that of any single filler system (functionalized MWCNTs or modified SiC np ), which is due to the effective combination of multi-walled carbon nanotubes (MWCNTs) to MWCNT and SIC np -to-SiC np conductive networks.
Journal ArticleDOI
Thermal properties and heat storage analysis of palmitic acid-TiO2 composite as nano-enhanced organic phase change material (NEOPCM)
R.K. Sharma,Poo Balan Ganesan,V.V. Tyagi,Hendrik Simon Cornelis Metselaar,Shanti C. Sandaran +4 more
TL;DR: In this article, the phase change behavior of prepared novel composites of palmitic acid and solid nanoparticles of titanium dioxide (TiO2) for thermal energy storage has been investigated.
Journal ArticleDOI
The shape effects of nanoparticles suspended in HFE-7100 over wedge with entropy generation and mixed convection
TL;DR: In this paper, the HFE-7100 Engineered fluid with metal nanoparticles of spherical and non-spherical shapes with different sizes was used to investigate the effect of particle shape on Bejan number and entropy generation.
Journal ArticleDOI
Effects of surfactant on the stability and thermal conductivity of Al2O3/de-ionized water nanofluids
TL;DR: In this article, the effects of two kinds of surfactants (SDS and polyvinylpyrrolidone) on the stability and thermal conductivity of Al 2 O 3 /de-ionized water nanofluids are analyzed respectively.
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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