Journal ArticleDOI
Investigation on Convective Heat Transfer and Flow Features of Nanofluids
Yimin Xuan,Qiang Li +1 more
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TLDR
In this article, an innovative new class of heat transfer fluids can be engineered by suspending metallic nanoparticles in conventional heat-transfer fluids, which are expected to exhibit high thermal conductivities compared to those of currently used heat transfer fluid, and they represent the best hope for enhancing heat transfer.Abstract:
Low thermal conductivity is a primary limitation in the development of energy-efficient heat transfer fluids that are required in many industrial applications. In this paper we propose that an innovative new class of heat transfer fluids can be engineered by suspending metallic nanoparticles in conventional heat transfer fluids. The resulting {open_quotes}nanofluids{close_quotes} are expected to exhibit high thermal conductivities compared to those of currently used heat transfer fluids, and they represent the best hope for enhancement of heat transfer. The results of a theoretical study of the thermal conductivity of nanofluids with copper nanophase materials are presented, the potential benefits of the fluids are estimated, and it is shown that one of the benefits of nanofluids will be dramatic reductions in heat exchanger pumping power.read more
Citations
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Recent Advances in Heat Transfer Enhancements: A Review Report
TL;DR: A review of heat transfer augmentation methods that assist fin and micro-fins in enhancing heat transfer is presented in this article, where the authors describe flow and heat transfer in porous media as a well-modelled passive enhancement method.
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Measurement of the thermal conductivity of titania and alumina nanofluids
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Three-dimensional flow of nanofluid over a non-linearly stretching sheet: An application to solar energy
TL;DR: In this article, a set of similarity transformations are introduced to convert the boundary layer equations into self-similar forms, and the solutions have been obtained numerically through shooting method with fourth-fifth-order Runge-Kutta integration technique.
Journal ArticleDOI
New correlation for Nusselt number of nanofluid with Ag / Al2O3 / Cu nanoparticles in a microchannel considering slip velocity and temperature jump by using lattice Boltzmann method
TL;DR: Forced convection heat transfer of water-Ag, water-Cu and water-Al2O3 nanofluid in a microchannel is studied numerically by using lattice Boltzmann method.
Journal ArticleDOI
Performance dependence of thermosyphon on the functionalization approaches: An experimental study on thermo-physical properties of graphene nanoplatelet-based water nanofluids
Ahmad Amiri,Rad Sadri,Mehdi Shanbedi,Goodarz Ahmadi,B.T. Chew,Salim Newaz Kazi,Mahidzal Dahari +6 more
TL;DR: In this paper, a rapid microwave-assisted approach was used to stably disperse graphene nanoplatelets (GNP) in aqueous media by covalent and non-covalent functionalization.
References
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Book
Introduction to Heat Transfer
TL;DR: In this article, the physical concepts and methodologies of heat and mass transfer are explained for advanced undergraduate engineering majors, using a systematic method for problem solving and discusses the relationship of heat transfer to many important practical applications through examples and problems.
Journal ArticleDOI
Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles
Bock Choon Pak,Young I. Cho +1 more
TL;DR: In this article, the authors used a Brookfield rotating viscometer to measure the viscosities of the dispersed fluids with γ-alumina (Al2O3) and titanium dioxide (TiO2) particles at a 10% volume concentration.
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Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
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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.