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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A critical review on convective heat transfer correlations of nanofluids
TL;DR: In this article, a review summarizes the correlations development for fluid flow and heat transfer characteristics of nanofluids in forced and free convection flows, and shows that most of the investigations recommended conventional friction factor correlation of base fluid for pressure drop prediction of the nano-fluid for both laminar and turbulent flows in minichannel as well as in microchannel.
Journal ArticleDOI
Mixed convection of copper-water nanofluid in a shallow inclined lid driven cavity using the lattice Boltzmann method
Arash Karimipour,Mohammad Hemmat Esfe,Mohammad Reza Safaei,Davood Toghraie Semiromi,Saeed Jafari,Salim Newaz Kazi +5 more
TL;DR: In this article, the effects of different values of the cavity inclination angle and nanoparticles volume fraction at three states of free, force and mixed convection domination are investigated while the Reynolds number is kept fixed as Re = 100 and Re = 10.
Journal ArticleDOI
Analysis of microchannel heat sink performance using nanofluids
Reiyu Chein,Guanming Huang +1 more
TL;DR: In this article, the performance of silicon microchannel heat sink using nanofluids as coolants was analyzed based on theoretical models and experimental correlations, and it was found that the performances were greatly improved for these two specific geometries when nanoffluids were used as the coolants.
Journal ArticleDOI
Graphene nanoplatelets-silver hybrid nanofluids for enhanced heat transfer
Hooman Yarmand,Samira Gharehkhani,Goodarz Ahmadi,Seyed Farid Seyed Shirazi,S. Baradaran,Elham Montazer,Mohd Nashrul Mohd Zubir,Maryam Sadat Alehashem,Salim Newaz Kazi,Mahidzal Dahari +9 more
TL;DR: In this article, a new synthesis method is introduced for decoration of silver on the functionalized graphene nanoplatelets (GNP-Ag) and preparation of nanofluids is reported.
Journal ArticleDOI
Effects of temperature and solid volume fraction on viscosity of SiO2-MWCNTs/SAE40 hybrid nanofluid as a coolant and lubricant in heat engines
TL;DR: In this article, an experimental investigation on the effects of temperature and concentration of nanoparticles on the dynamic viscosity of SiO 2 -MWCNTs/engine oil (SAE40) hybrid nanofluid is presented.
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.