Journal ArticleDOI
Natural convection of nano-fluids
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TLDR
In this article, an apparently paradoxical behaviour of heat transfer deterioration was observed in nano-fluid and its dependence on parameters such as particle concentration, material of the particles and geometry of the containing cavity have been investigated.Abstract:
Fluids with nano size solid particles suspended in them have been given the name nano-fluid which in recent studies have shown tremendous promise as heat transfer fluids. However, before suggesting such fluids for applications a thorough knowledge of physical mechanism of heat transfer in such fluids is wanted. The present study deals with one such aspect of natural convection of nano fluids inside horizontal cylinder heated from one end and cooled from the other. An apparently paradoxical behaviour of heat transfer deterioration was observed in the experimental study. Nature of this deterioration and its dependence on parameters such as particle concentration, material of the particles and geometry of the containing cavity have been investigated. The fluid shows characters distinct from that of common slurries.read more
Citations
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Journal ArticleDOI
Modeling of Rayleigh-Bénard natural convection heat transfer in nanofluids
Bilal Elhajjar,Bilal Elhajjar,Glades Bachir,Glades Bachir,Glades Bachir,Abdelkader Mojtabi,Abdelkader Mojtabi,C. Fakih,Marie-Catherine Charrier-Mojtabi +8 more
TL;DR: In this article, the influence of nanoparticles on conductive and convective heat transfer is studied and it is shown that adding nanoparticles in a fluid delays the onset of convection.
Journal ArticleDOI
Non-isobaric Marangoni boundary layer flow for Cu, Al2O3 and TiO2 nanoparticles in a water based fluid
TL;DR: In this paper, a non-isobaric Marangoni boundary layer flow that can be formed along the interface of immiscible nanofluids in surface driven flows due to an imposed temperature gradient, is considered.
Journal ArticleDOI
Thermal Physics and Critical Heat Flux Characteristics of Al2O3–H2O Nanofluids
TL;DR: In this paper, the influence of the thermal physics of nanofluids on the critical heat flux (CHF) of a pool boiling experiment with electrically heated NiCr metal wire under atmospheric pressure was investigated.
Book ChapterDOI
An Investigation on Thermal Conductivity and Viscosity of Water Based Nanofluids
Ismail H. Tavman,Alpaslan Turgut +1 more
TL;DR: In this paper, the authors report a literature review on the research and development work concerning thermal conductivity of nanofluids as well as their viscosity and explain different techniques used for the measurement of thermal conductivities, especially the 3ω method which was used in their measurements.
Journal ArticleDOI
Effects of nanoparticles Brownian motion in a linearly/sinusoidally heated cavity with MHD natural convection in the presence of uniform heat generation/absorption
TL;DR: In this article, the Lattice Boltzmann Method (LBM) was used to analyze the thermal conductivity and viscosity of nanofluid and pure water in a cavity submitted to different heating modes on its vertical walls.
References
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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.
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
Journal ArticleDOI
Measuring Thermal Conductivity of Fluids Containing Oxide Nanoparticles
TL;DR: In this paper, a transient hot-wire method was used to measure the thermal conductivity of a small amount of nanoparticles and the experimental results showed that these nanoparticles have substantially higher thermal conductivities than the same liquids without nanoparticles.
Journal ArticleDOI
Conceptions for heat transfer correlation of nanofluids
Yimin Xuan,Wilfried Roetzel +1 more
TL;DR: In this article, the authors proposed two different approaches for deriving heat transfer correlation of the nanofluid, and investigated the mechanism of heat transfer enhancement of the nano-fluid.
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