Viscous dissipative forced convection in thermal non-equilibrium nanofluid-saturated porous media embedded in microchannels

Ting, Tiew Wei; Hung, Yew Mun; Guo, Ningqun

doi:10.1016/j.icheatmasstransfer.2014.08.018

Cited by 43 publications

(17 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The 14 recent analytical studies of Ting et al [24,25] under symmetric and asymmetric configurations showed the 15 significance of viscous dissipation effect. These authors [24,25] [26]. These authors assumed local thermal equilibrium (LTE) between the fluid and solid matrix and derived…”

mentioning

confidence: 99%

First and second law analyses of nanofluid forced convection in a partially-filled porous channel – The effects of local thermal non-equilibrium and internal heat sources

Dickson

Torabi

Karimi

2016

Applied Thermal Engineering

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 99%

First and second law analyses of nanofluid forced convection in a partially-filled porous channel – The effects of local thermal non-equilibrium and internal heat sources

Dickson

Torabi

Karimi

2016

Applied Thermal Engineering

View full text Add to dashboard Cite

show abstract

“…Ting et al [19] considered the local thermal non-equilibrium (LTNE) situation in a porous channel 11 saturated with nanofluids, under isoflux boundary conditions. Attention was paid to the influences of viscous 12 dissipation and analytical solutions were derived for the hydrodynamic and temperature fields [19]. Importantly,…”

mentioning

confidence: 99%

“…Ting et al [19] showed that ignoring the viscous effects can lead to significant over predictions of the rate of …”

mentioning

confidence: 99%

Theoretical investigation of entropy generation and heat transfer by forced convection of copper–water nanofluid in a porous channel — Local thermal non-equilibrium and partial filling effects

2016

View full text Add to dashboard Cite

Torabi, M., Dickson, C., and Karimi, N. (2016) Theoretical investigation of entropy generation and heat transfer by forced convection of copper-water nanofluid in a porous channel -local thermal non-equilibrium and partial filling effects. Powder Technology, 301, pp. 234-254.There may be differences between this version and the published version. You are advised to consult the publisher's version if you wish to cite from it.

show abstract

“…Microchannel heat sink manifests itself as one of the promising solutions due to its large area-to-volume ratio. Previous studies have reported the enhancement of heat transfer performance of microchannel by using nanofluids as the working fluids [1][2][3]. With the suspension of nanoparticles, the effective thermal conductivity and viscosity of nanofluids are intensified [4,5].…”

Section: Introductionmentioning

confidence: 99%

Viscous Dissipation Effect on Streamwise Entropy Generation of Nanofluid Flow in Microchannel Heat Sinks

Ting

Hung

Guo

2016

Journal of Energy Resources Technology

Self Cite

View full text Add to dashboard Cite

The effects of viscous dissipation on the entropy generation of water-alumina nanofluid convection in circular microchannels subjected to exponential wall heat flux are investigated. Closed-form solutions of the temperature distributions in the streamwise direction are obtained for the models with and without viscous dissipation term in the energy equation. The two models are compared by analyzing their relative deviations in entropy generation for different Reynolds numbers and nanoparticle volume fractions. The incorporation of viscous dissipation prominently affects the temperature distribution and consequently the entropy generation. When the viscous dissipation effect is neglected, the total entropy generation and the fluid friction irreversibility are nearly twofold overrated while the heat transfer irreversibility is underestimated significantly. By considering the viscous dissipation effect, the exergetic effectiveness for forced convection of nanofluid in microchannels attenuates with the increasing nanoparticle volume fraction and nanoparticle diameter. The increase in the entropy generation of nanofluid is mainly attributed to the intensification of fluid friction irreversibility. From the aspect of the second-law of thermodynamics, the widespread conjecture that nanofluids possess advantage over pure fluid associated with higher overall effectiveness is invalidated.

show abstract

Viscous dissipative forced convection in thermal non-equilibrium nanofluid-saturated porous media embedded in microchannels

Cited by 43 publications

References 43 publications

First and second law analyses of nanofluid forced convection in a partially-filled porous channel – The effects of local thermal non-equilibrium and internal heat sources

First and second law analyses of nanofluid forced convection in a partially-filled porous channel – The effects of local thermal non-equilibrium and internal heat sources

Theoretical investigation of entropy generation and heat transfer by forced convection of copper–water nanofluid in a porous channel — Local thermal non-equilibrium and partial filling effects

Viscous Dissipation Effect on Streamwise Entropy Generation of Nanofluid Flow in Microchannel Heat Sinks

Contact Info

Product

Resources

About