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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Heat Transfer Properties of Nanodiamond–Engine Oil Nanofluid in Laminar Flow
TL;DR: In this article, the effects of utilizing nanodiamond as an additive to engine oil on the heat transfer enhancement in laminar pipe flow were investigated, and the results clearly indicate the heat-transfer enhancement due to the presence of nanoparticles in the fluid.
Journal ArticleDOI
Natural convection heat transfer performance in complex-wavy-wall enclosed cavity filled with nanofluid
TL;DR: In this article, a numerical investigation is performed into the natural convection heat transfer characteristics within an enclosed cavity filled with nanofluid, where the left and right walls of the cavity have a complex-wavy geometry and are maintained at a high and low temperature, respectively.
Journal ArticleDOI
Heat Transfer in MHD Mixed Convection Flow of a Ferrofluid along a Vertical Channel.
TL;DR: It was found that temperature and velocity of ferrofluids depend strongly on viscosity and thermal conductivity together with magnetic field.
Journal ArticleDOI
Irreversibility analysis of a vertical annulus using TiO2/water nanofluid with MHD flow effects
TL;DR: In this article, an analytical study of the second law of thermodynamics is performed for the flow and heat transfer of TiO2/water nanofluid in a vertical annulus with isoflux walls and under the influence of magnetohydrodynamic (MHD) field.
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An experimental investigation of thermo-physical properties and heat transfer performance of Al2O3-Aviation Turbine Fuel nanofluids
Sandipkumar Sonawane,Kaustubh Patankar,Ankit Fogla,Bhalchandra Puranik,Upendra Bhandarkar,S. Sunil Kumar +5 more
TL;DR: In this article, the heat transfer performance of Al2O3 nanofluids is investigated for a potential application of regeneratively cooled semi-cryogenic rocket engine thrust chambers.
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.