Study on forced convective heat transfer of non-newtonian nanofluids

He, Yurong; Men, Yubin; Liu, Xing; Lu, Huilin; Chen, Haisheng; Ding, Yulong

doi:10.1007/s11630-009-0020-x

Cited by 35 publications

(10 citation statements)

References 12 publications

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“…The thermal conductivity and viscosity of the nanofluids was found to be enhanced at higher carbon nanotube concentrations. The forced convective heat transfer of dilute liquid suspensions of nanoparticles (nanofluids) flowing through a straight pipe under laminar conditions was studied by He et al [17]. Their research indicated, using both experiments and mathematical modeling, that nanofluids can substantially enhance convective heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vibration on Forced Convection Heat Transfer for SiO₂–Water Nanofluids

Zhang

Bai

et al. 2014

Heat Transfer Engineering

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In the process of heat transfer, the fluid type and external parameters have a significant impact on heat transfer performance. For this reason, the physical properties, pressure differences, and heat transfer rates of SiO 2 -water nanofluids have been experimentally investigated in a straight circular pipe. Experimental results revealed a great difference in physical properties between SiO 2 -water nanofluids and purified water. The friction factor of low-volume-concentration nanofluids was slightly increased for laminar flow and tended to be almost independent of the Reynolds number for turbulent flow. The heat transfer coefficient can be enhanced either by adding nanoparticles to purified water or by imposing a transverse vibration on the heat transfer surface. Using these two methods at the same time (compound heat transfer enhancement), heat transfer performance is much better than that with either method alone. The largest increase of about 182% was observed under conditions of compound heat transfer enhancement.

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Section: Introductionmentioning

confidence: 99%

Effect of Vibration on Forced Convection Heat Transfer for SiO₂–Water Nanofluids

Zhang

Bai

et al. 2014

Heat Transfer Engineering

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“…Nanofluids are commonly used in heat transfer units for performance enhancement of cooling fluids. Convective heat transfer using nanofluids, like Al 2 O 3 [ 37 , 38 , 39 ], ZrO 2 [ 39 , 40 ], CNT [ 41 , 42 ], CuO [ 38 ], Cu [ 38 ], and TiO 2 [ 43 , 44 ], have been investigated in numerical studies. Williams et al [ 39 ] investigated the heat transfer and pressure drop in horizontal tubes under turbulent flow conditions by performing experimental analysis on setup using alumina-water (Al 2 O 3 )- and zirconia-water (ZrO 2 )-based nanofluids.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Heat Transfer and Pressure Drop in Microchannel Heat Sink Using Al2O3 and ZrO2 Nanofluids

Khan¹,

Uddin²,

Akbar

et al. 2020

Nanomaterials

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A new micro heat exchanger was analyzed using numerical formulation of conjugate heat transfer for single-phase fluid flow across copper microchannels. The flow across bent channels harnesses asymmetric laminar flow and dean vortices phenomena for heat transfer enhancement. The single-channel analysis was performed to select the bent channel aspect ratio by varying width and height between 35–300 μm for Reynolds number and base temperature magnitude range of 100–1000 and 320–370 K, respectively. The bent channel results demonstrate dean vortices phenomenon at the bend for Reynolds number of 500 and above. Thermal performance factor analysis shows an increase of 18% in comparison to straight channels of 200 μm width and height. Alumina nanoparticles at 1% and 3% concentration enhance the Nusselt number by an average of 10.4% and 23.7%, respectively, whereas zirconia enhances Nusselt number by 16% and 33.9% for same concentrations. On the other hand, thermal performance factor analysis shows a significant increase in pressure drop at high Reynolds number with 3% particle concentration. Using zirconia for nanofluid, Nusselt number of the bent multi-channel model is improved by an average of 18% for a 3% particle concentration as compared to bent channel with deionized water.

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“…Nowar [14] solved the problem of peristaltic flow of a nanofluid in the regime of Hall current and porous medium. A vast study exploring different aspects of nanofluid may be consulted in the references [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic Nanoliquid Thin Film Sprayed on a Stretching Cylinder with Heat Transfer

et al. 2017

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Abstract:The magnetohydrodynamic thin film nanofluid sprayed on a stretching cylinder with heat transfer is explored. The spray rate is a function of film size. Constant reference temperature is used for the motion past an expanding cylinder. The sundry behavior of the magnetic nano liquid thin film is carefully noticed which results in to bring changes in the flow pattern and heat transfer. Water-based nanofluids like Al 2 O 3 -H 2 O and CuO-H 2 O are investigated under the consideration of thin film. The basic constitutive equations for the motion and transfer of heat of the nanofluid with the boundary conditions have been converted to nonlinear coupled differential equations with physical conditions by employing appropriate similarity transformations. The modeled equations have been computed by using HAM (Homotopy Analysis Method) and lead to detailed expressions for the velocity profile and temperature distribution. The pressure distribution and spray rate are also calculated. The comparison of HAM solution predicts the close agreement with the numerical method solution. The residual errors show the authentication of the present work. The CuO-H 2 O nanofluid results from this study are compared with the experimental results reported in the literature showing high accuracy especially, in investigating skin friction coefficient and Nusselt number. The present work discusses the salient features of all the indispensable parameters of spray rate, velocity profile, temperature and pressure distributions which have been displayed graphically and illustrated.

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Study on forced convective heat transfer of non-newtonian nanofluids

Cited by 35 publications

References 12 publications

Effect of Vibration on Forced Convection Heat Transfer for SiO₂–Water Nanofluids

Effect of Vibration on Forced Convection Heat Transfer for SiO₂–Water Nanofluids

Investigation of Heat Transfer and Pressure Drop in Microchannel Heat Sink Using Al2O3 and ZrO2 Nanofluids

Magnetohydrodynamic Nanoliquid Thin Film Sprayed on a Stretching Cylinder with Heat Transfer

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Study on forced convective heat transfer of non-newtonian nanofluids

Cited by 35 publications

References 12 publications

Effect of Vibration on Forced Convection Heat Transfer for SiO2–Water Nanofluids

Effect of Vibration on Forced Convection Heat Transfer for SiO2–Water Nanofluids

Investigation of Heat Transfer and Pressure Drop in Microchannel Heat Sink Using Al2O3 and ZrO2 Nanofluids

Magnetohydrodynamic Nanoliquid Thin Film Sprayed on a Stretching Cylinder with Heat Transfer

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Effect of Vibration on Forced Convection Heat Transfer for SiO₂–Water Nanofluids

Effect of Vibration on Forced Convection Heat Transfer for SiO₂–Water Nanofluids