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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Book ChapterDOI
2D-Based Nanofluids: Materials Evaluation and Performance
TL;DR: In this article, the authors narrated the advances in thermal nanofluids and the develop- ment of novel fluids with the discovery of graphene and discussed the multifunctional aspects of these fluids.
Journal ArticleDOI
Convective heat transfer enhancement with nanoaerosols
TL;DR: In this article, the effects of suspended 112-nm diameter aluminum oxide (Al2O3) nanoparticles in air on the rate of convective heat transfer were investigated. But the particle mass loading was varied between 0.01% and 1%.
Journal ArticleDOI
Enhancing and attenuating heat transfer characteristics for circulating flows of nanofluids within rectangular enclosures
TL;DR: In this paper, the average Nusselt number of a pure base fluid is replaced with a nanofluid, and a somewhat anomalous behavior for at least four types of Nanofluids has been reported.
Journal ArticleDOI
Numerical feasibility study of utilizing nanofluids in laminar natural convection inside enclosures
TL;DR: In this article, the feasibility of applying nanofluids instead of pure liquids in natural convective, which is a discrepancy issue between the previous numerical and experimental works, is examined.
Journal ArticleDOI
Smart role of Al2O3-water suspension on laminar heat transfer in entrance region of a channel with transverse in-line baffles
TL;DR: In this paper, the effect of nanofluid on both heat transfer and pressure drop is approximately independent from baffle shape and the baffled channel presents a better thermal-hydraulic performance under the condition of constant inlet velocity.
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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