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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Selected aspects of the nanofluids utilization as the heat transfer carriers
Abstract: Since many years the nanofluids rise an interest of the researchers in various areas from cosmetology through medicine to technics. In each area potential of the nanofluids depends on various properties, which may be utilized. Considering the technical applications, very important one is related to the energy systems. Present paper discusses the heat transfer enhancement as the main aspect of nanofluid potential in this area. It presents also new research direction regarding the magnetic field influence on a convection of the nanofluids. The experimental analysis gives promising results especially in the context of space applications.
Lattice Boltzmann method for MHD natural convection of CuO/water nanofluid in a wavy-walled cavity with sinusoidal temperature distribution
TL;DR: In this article, the effect of the presence of nanoparticles on the heat transfer performance of CuO-water Nanofluid within a wavy-walled cavity and subjected to a uniform magnetic field is examined by adopting the lattice Boltzmann model.
Thermo Physical Properties of Nano Ferro fluids
TL;DR: In this article, the authors present preparation and experimental determination of thermal conductivity and viscosity of nano ferro fluid and development of a suitable correlation for determination of thermo physical properties.
Journal ArticleDOI
Recent advancement of nanofluids in solar concentrating collectors: A brief review
TL;DR: In this article , a brief review of the performance of solar collectors by applying nanofluid as an operating fluid is presented, which is the fluid which has demonstrated numerous improvements in the thermophysical properties over the past decade.
Journal ArticleDOI
Effect of heat transfer performance of shell and tube heat exchanger equipped with VCR system using different baffle angles and operated with different graphene oxide nanoparticle shapes
Talluri Srinivasa Rao,K. Dilip Kumar,S. Saleem,Naikoti Kishan,Chakali Raghavendra,M. Avinash +5 more
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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