Journal ArticleDOI
Natural convection of nano-fluids
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
Open-Loop Pulsating Heat Pipes Charged With Magnetic Nanofluids: Powerful Candidates for Future Electronic Coolers
Maziar Mohammadi,Mehdi Taslimifar,Shahab Haghayegh,Siamak Kazemzadeh Hannani,Mohammad Behshad Shafii,Mohammad Hassan Saidi,Hossein Afshin +6 more
TL;DR: In this paper, two sets of open-loop pulsating heat pipes (OLPHPs) for two different magnetic nanofluids (with and without surfactant) were fabricated and their thermal performance was experimentally investigated.
Journal ArticleDOI
Laminar mixed convection of large-Prandtl-number in-tube nanofluid flow, Part II: Correlations
Wei Li,Feng Zhaozan +1 more
TL;DR: In this paper, the second part of two related papers on mixed convection heat transfer of large-Prandtl-number nanofluids flowing in a horizontal tube was made to deepen insight of the ambiguous phenomena.
Journal ArticleDOI
Numerical Investigation of Nanofluid Forced Convection in Channels with Discrete Heat Sources
TL;DR: Numerical simulation is performed to investigate the laminar force convection of Al2O3/water nanofluid in a flow channel with discrete heat sources and it is seen that best performance can be obtained for Re=1000 and 𝜙=4%.
Journal ArticleDOI
Experimental Study of Heat Transfer Characteristics of Al2O3 and CuO Nanofluids for Machining Application
TL;DR: In this article, the thermal conductivity and viscosity of Al2O3 and CuO nanofluids are considered together for heat transfer performance and the performance of Nanofluid MQL process for machining performance is reviewed.
Journal ArticleDOI
Numerical investigation of nanofluid natural convection coupling with nanoparticles sedimentation
Xiangyin Meng,Xi Zhang,Qian Li +2 more
TL;DR: In this paper, the authors investigate the relationship between nanofluid natural convection and nanoparticles sedimentation through open source computational fluid dynamics (CFD) simulations and develop three new OpenFOAM solvers based on different approaches in both single and multi-phase ways.
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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