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convective heat transfer enhancement

Convective heat transfer enhancement of graphite nanofluids in shell and tube heat exchanger

Convective heat transfer enhancement of graphite nanofluids in shell and tube heat exchanger

... It is clear from the graph that thermal conductivities increase gradually when the concentration of the graphite is increased in the base fluid. However there is minute change in all the three curves due to the variation ...

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Scaling of Convective Heat Transfer Enhancement Due to Flow Pulsation in an Axisymmetric Impinging Jet

Scaling of Convective Heat Transfer Enhancement Due to Flow Pulsation in an Axisymmetric Impinging Jet

... Although these two regimes depend on frequency (or Stokes number) and not on Strouhal number, there might be a hidden dependence on the effective pulsation amplitude / . As shown in Fig. 2, fluid compressibility ...

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ON THE MECHANISM OF BUBBLE INDUCED FORCED CONVECTIVE HEAT TRANSFER ENHANCEMENT

ON THE MECHANISM OF BUBBLE INDUCED FORCED CONVECTIVE HEAT TRANSFER ENHANCEMENT

... Bubble Shape Influence Bubble shape is another key parameter that influences the flow field. However, due to the number of forces acting on a bubble imbedded in shear flow as described by Thorncroft et al. (2001), ...

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Effect of nanoparticle shape on natural convection heat transfer in a square cavity with partitions using water-SiO2 nanofluid

Effect of nanoparticle shape on natural convection heat transfer in a square cavity with partitions using water-SiO2 nanofluid

... on convective heat transfer enhancement in a partitioned square cavity subject to different shapes of nanoparticle using water-SiO 2 ...and heat transfer ...

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Factor Effect Estimation in the Convective Heat Transfer Coefficient Enhancement of Al2O3/EG Nanofluid in a Double-pipe Heat Exchanger

Factor Effect Estimation in the Convective Heat Transfer Coefficient Enhancement of Al2O3/EG Nanofluid in a Double-pipe Heat Exchanger

... of heat transfer process of alumina nanofluid, two factors each in two levels were considered ; this design has four different combinations of factors or four ...nf enhancement percent to the ...

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Passive Heat Transfer Augmentation Methods in a Circular Tube: A Review

Passive Heat Transfer Augmentation Methods in a Circular Tube: A Review

... Passive heat transfer augmentation methods does not need any external power ...the convective heat transfer, one of the ways to enhance heat transfer rate is to increase ...

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Forced convection in the wakes of sliding bubbles

Forced convection in the wakes of sliding bubbles

... the convective heat transfer has now dropped to under twice that of natural convection ...the convective flux enhancement behind the bubble appears lower than that at the first instant ...

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CONVECTIVE HEAT TRANSFER ANALYSIS IN AN ARCH ENCLOSURE

CONVECTIVE HEAT TRANSFER ANALYSIS IN AN ARCH ENCLOSURE

... of heat transfer ...on heat transfer and flow were ...the heat transfer rate in both vertical and horizontal positions of the ...investigated heat transfer ...

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Experimental Investigation of Convective Heat Transfer Coefficient of CNTs Nanofluid under Constant Heat Flux

Experimental Investigation of Convective Heat Transfer Coefficient of CNTs Nanofluid under Constant Heat Flux

... local convective heat transfer coefficient at various axial ...local convective heat transfer coefficient increases with increasing concentration of carbon nanotubes, and a ...

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Advanced Heat Transfer Enhancement by
using Nanofluids: A Review

Advanced Heat Transfer Enhancement by using Nanofluids: A Review

... conventional heat transfer ...of heat transfer rate compared to the base ...of heat transfer of Nanofluids increases by increase in concentration of nanoparticles in base ...for ...

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Active Feedback Control of Heat and Moisture Transfer through Textiles for Human Comfort.

Active Feedback Control of Heat and Moisture Transfer through Textiles for Human Comfort.

... latent heat of water (around 2400 J/g) is at least 10 times greater than that of common phase change materials (around 150-250 ...for heat loss enhancement conducted on military personnel, law ...

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Flow structures and heat transfer enhancement in the wakes of sliding bubbles

Flow structures and heat transfer enhancement in the wakes of sliding bubbles

... local heat transfer coefficient of three to five times the undisturbed ...drive convective heat ...little heat transfer in spite of a large heat transfer ...

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Heat Transfer Enhancement in Double Pipe Heat Exchanger by Alumina – Water Nanofluid

Heat Transfer Enhancement in Double Pipe Heat Exchanger by Alumina – Water Nanofluid

... experimental convective heat transfer coefficient at the entire region of the tube was ...of heat exchanger. Overall heat transfer coefficients in the outer region are estimated ...

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Vortex Induced Convective Heat Transfer Augmentation

Vortex Induced Convective Heat Transfer Augmentation

... enhance heat transfer via the resulting flow turbulence and vorticity ...augmented heat transfer rate [3,4]. Among the delta winglet heat transfer enhancement studies are ...

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Heat Transfer and Numerical Analysis in Microchannel Heat Exchanger Using Nanofluids : A Review Divyesh Ubale 1, P. V. Ubale2

Heat Transfer and Numerical Analysis in Microchannel Heat Exchanger Using Nanofluids : A Review Divyesh Ubale 1, P. V. Ubale2

... excellent heat transfer characteristics. Micro-scale heat transfer devices are used on large scale in electronics industry which leads to the development of compact size heat exchanger ...

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Investigation on Fluid Flow and Heat Transfer Characteristics of Pin Fin Arrays

Investigation on Fluid Flow and Heat Transfer Characteristics of Pin Fin Arrays

... and heat transfer characteristics of pin-fin ...the heat transfer, friction characteristics of convective heat transfer through a rectangular channel with cylindrical and ...

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Analytical Solution Of Rectangular Plate Due To Convective Heat Transfer By Dissipation

Analytical Solution Of Rectangular Plate Due To Convective Heat Transfer By Dissipation

... distribution which is represented by Heaviside unit step function. The initial temperature of the rectangular plate is kept at constant temperature . The governing heat conduction equation has been solved by using ...

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CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution

CFD assessment of the effect of nanoparticles on the heat transfer properties of acetone/ZnBr2 solution

... Figure 8c shows that the skin friction decreases with increasing acetone mass fraction. It also illustrates that the skin friction decreases slightly with increasing the volume fraction of nanoparticles. This will change ...

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Numerical Study of Natural Convection in a Two Dimensional Enclosure with a Sinusoidal Boundary Thermal Condition Utilizing Nanofluid

Numerical Study of Natural Convection in a Two Dimensional Enclosure with a Sinusoidal Boundary Thermal Condition Utilizing Nanofluid

...  ). The horizontal walls are assumed to be insulated, non conducting and imperme- able to mass transfer. The nanofluid in the enclosure is Newtonian, incompressible and laminar. The nanoparti- cles are assumed to ...

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Topology optimization of convective laminar heat transfer

Topology optimization of convective laminar heat transfer

... the heat flux transport are optimized: pure conduction in the solid domain, and conducto-convection in the fluid ...the heat and mass transfer problem, in a similar manner to ...

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