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
Thermal conductivity variation on natural convection flow of water–alumina nanofluid in an annulus
TL;DR: In this paper, the authors focused on the numerical modeling of steady laminar natural convection flow in an annulus filled with water-alumina nanofluid, where the inner surface of the annulus is heated uniformly by a uniform heat flux q and the outer boundary is kept at a constant temperature T c.
Journal ArticleDOI
Natural convection of Al2O3–water nanofluid in an inclined enclosure with the effects of slip velocity mechanisms: Brownian motion and thermophoresis phenomenon
TL;DR: In this article, the effects of inclination angle on natural convective heat transfer and fluid flow in an enclosure filled with Al 2 O 3 -water nanofluid are studied numerically.
Journal ArticleDOI
Environmental Impacts and Hazards Associated With Metal Working Fluids and Recent Advances in the Sustainable Systems: A Review
TL;DR: A review of advances in the use of lubrication techniques during machining operations as well as the application of state-of-the-art nanofluids in machining is presented in this paper.
Journal ArticleDOI
Effect of radiation and magnetic field on peristaltic transport of nanofluids through a porous space in a tapered asymmetric channel
M. Kothandapani,J. Prakash +1 more
TL;DR: In this article, the effect of radiation and MHD on peristaltic flow of a nanofluid through a porous medium in a two dimensional tapered asymmetric channel has been made.
Journal ArticleDOI
An experimental investigation on the effect of Al2O3/distilled water nanofluid on the energy efficiency of evacuated tube solar collector
TL;DR: In this paper, the effect of using Al 2 O 3 /distilled water nanofluid as the working fluid, on the thermal efficiency of all-glass passive circulation evacuated tube solar collector with internal spherical coil inside the horizontal tank was investigated.
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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