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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Investigation of nano-Bioconvective fluid motile microorganism and nanoparticle flow by considering MHD and thermal radiation
TL;DR: In this article, the effect of Brownian motion, thermal radiation, Schmidt number, thermophoresis, Peclet number, Magnetic field, and bioconvection Schmidt number on the desired outcomes are scrutinized.
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Heat transfer enhancement of car radiator using aqua based magnesium oxide nanofluids
TL;DR: In this paper, the application of water-based MgO nanofluids for thermal management of a car radiator is discussed. But the focus of this research paper is not on the performance of the water, but rather on the applications of different volumetric concentrations (i.e., 0.06, 0.09, and 0.12%).
Journal ArticleDOI
On Darcy-Forchheimer flow of viscoelastic nanofluids: A comparative study
TL;DR: In this paper, a nonlinear stretching surface has been employed to create the flow, and convergence series solutions of nonlinear systems are developed through the optimal homotopy analysis method (OHAM).
Journal ArticleDOI
Theoretical analysis of metallic nanoparticles on blood flow through stenosed artery with permeable walls
Sohail Nadeem,S. Ijaz +1 more
TL;DR: In this article, the authors studied the physical characteristics of blood flow in the presence of stenosis and nanoparticles through a curved channel with permeable walls, and the governing equations for the anticipated model are solved using the corresponding boundary conditions and close-form solutions have been obtained for temperature, velocity and slip velocity by using Cauchy Euler's method.
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Mixed convection boundary-layer flow past a horizontal circular cylinder embedded in a porous medium filled with a nanofluid under convective boundary condition
TL;DR: In this paper, the steady mixed convection boundary-layer flow past a horizontal circular cylinder in a stream flowing vertically upwards embedded in porous medium filled with a nanofluid is studied, taking into account the thermal convective boundary condition.
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.
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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.