Results 11 to 20 of about 68,479 (303)

Heat transfer augmentation in nanofluids via nanofins [PDF]

open access: yesNanoscale Research Letters, 2011
Theoretical results derived in this article are combined with experimental data to conclude that, while there is no improvement in the effective thermal conductivity of nanofluids beyond the Maxwell's effective medium theory (J.C.
Vadasz Peter
doaj   +6 more sources

A Review of Airside Heat Transfer Augmentation with Vortex Generators on Heat Transfer Surface [PDF]

open access: yesEnergies, 2018
Heat exchanger performance can be improved via the introduction of vortex generators to the airside surface, based on the mechanism that the generated longitudinal vortices can disrupt the boundary layer growth, increase the turbulence intensity and ...
Lei Chai, Savvas A. Tassou
doaj   +6 more sources

Measurements of the Influence of Integral Length Scale on Stagnation Region Heat Transfer [PDF]

open access: yesInternational Journal of Rotating Machinery, 1997
The purpose of the present work was twofold: first, to determine if a length scale existed that would cause the greatest augmentation in stagnation region heat transfer for a given turbulence intensity and second, to develop a prediction tool for ...
G. James Van Fossen, Chan Y. Ching
doaj   +4 more sources

Simulation of Turbulent Heat Transfer Augmentation with Hybrid Nanofluid

open access: yesDiyala Journal of Engineering Sciences, 2018
Study of heat transfer augmentation with hybrid nanofluid represents a new class of heat transfer augmentation. The CFD model by using commercial software depending on finite volume technique and adopting SIMPLE  algorithm is performed.
Adnan Mohammed Hussein   +1 more
doaj   +3 more sources

Efficiency Improvement of Miniaturized Heat Exchangers

open access: yesFluids, 2021
Micro heat exchangers have been revealed to be efficient devices for improved heat transfer due to short heat transfer distances and increased surface-to-volume ratios.
Iris Gerken   +2 more
doaj   +1 more source

Heat Transfer Augmentation and Friction Factor Due to the Arrangement of Rectangular Turbulators in a Finned Air Channel of a Solar Air Heater

open access: yesEnergies, 2023
In this study, the heat transfer augmentation and friction factor of a novel type of solar air heater (SAH), which incorporates longitudinal fins and rectangular turbulators, were investigated numerically with different arrangements of the turbulators ...
Byeong-Hwa An   +2 more
doaj   +1 more source

Effect of design parameters on passive control of heat transfer enhancement phenomenon in heat exchangers–A brief review

open access: yesCase Studies in Thermal Engineering, 2023
The development of innovative heat exchangers with improved heat transfer performance is an important concern for heat transfer applications. The use of passive techniques such as vortex generators, surface roughness, augmentation of heat transfer area ...
Mohamed R. Ali   +6 more
doaj   +1 more source

Impact of hybrid nanofluids on MHD flow and heat transfer near a vertical plate with ramped wall temperature

open access: yesCase Studies in Thermal Engineering, 2021
Heat transfer augmentation is a modern challenge in various engineering fields including heat exchangers, electronics, chemical and bio reactors, and others.
Vemula Rajesh   +2 more
doaj   +1 more source

The Effects of Hole Arrangement and Density Ratio on the Heat Transfer Coefficient Augmentation of Fan-Shaped Film Cooling Holes

open access: yesEnergies, 2021
An experimental study was performed to investigate the effects of the arrangement of fan-shaped film cooling holes and density ratio (DR) on heat transfer coefficient augmentation. Both single- and multi-row fan-shaped film cooling holes were considered.
Young Seo Kim   +3 more
doaj   +1 more source

A SIMULATIVE ANALYSIS FOR HEAT TRANSFER ENHANCEMENT USING RECTANGULAR WING & WINGLET TYPE VORTEX GENERATOR IN A TRIANGULAR CHANNEL [PDF]

open access: yesProceedings on Engineering Sciences, 2022
The augmentation of heat transfer through different ways has been developing as an intense area of research since many years. The recent increase in the use of heat exchangers for industrial applications has called for improvement in their design ...
Kashif Hassan   +2 more
doaj   +1 more source

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