Journal ArticleDOI
Anomalous thermal conductivity enhancement in nanotube suspensions
Reads0
Chats0
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
More filters
Journal ArticleDOI
Lattice Boltzmann simulation of natural convection heat transfer of SWCNT-nanofluid in an open enclosure
TL;DR: In this paper, the effects of single walled carbon nanotubes and copper nanoparticles on convection heat transfer in an open cavity are investigated numerically, for different volume fractions of nanoparticles (0, 1%) and aspect ratio of the cavity (1, 4) when Rayleigh number varies from 103 to 105.
Journal ArticleDOI
A modified model for thermal conductivity of carbon nanotube-nanofluids
TL;DR: In this article, a modified model for predicting the thermal conductivity of carbon nanotube-nanofluids (CNT-nanorluids), which takes into account the effects of size, volume fraction, and thermal conductivities of CNTs as well as the properties of base liquid was presented.
Journal ArticleDOI
Darcy-Forchheimer squeezed flow of carbon nanotubes with thermal radiation
TL;DR: In this paper, Wang et al. analyzed the squeezing flow of water-based carbon nanotubes as a Darcy-Forchheimer porous medium with thermal radiation, and the Xue model was used for nanoliquid transport phenomena.
Journal ArticleDOI
Thermal Characteristics of 3D Nanofluid Flow over a Convectively Heated Riga Surface in a Darcy–Forchheimer Porous Material with Linear Thermal Radiation: An Optimal Analysis
TL;DR: In this article, the thermal analysis of the steady, three-dimensional flow of CMC (sodium carboxymethyl cellulose) base fluid with Cu nanoparticles through the implantation plate of Riga in a porous Darcy-Forchheimer material with internal heat generation (absorption) effects was studied.
Journal ArticleDOI
Effects of nanoparticles on the nucleation and devitrification temperatures of polyol cryoprotectant solutions
TL;DR: In this paper, the authors investigate the efficiency of nanoparticles as nucleation agents in polyol cryoprotectant solutions at cryogenic temperatures, the nucleation and devitrification temperatures of these solutions with different concentrations of diamond, gold, copper-nickel, and silicon nanoparticles were measured through differential scanning calorimetry.
References
More filters
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
Related Papers (5)
Investigation on Convective Heat Transfer and Flow Features of Nanofluids
Yimin Xuan,Qiang Li +1 more