Thermal and Rheological Properties of Water-based Ferrofluids and Their Applicability as Quenching Media

Župan, Josip; Renjo, Marijana Majić

doi:10.1016/j.phpro.2015.12.166

Cited by 17 publications

(7 citation statements)

References 20 publications

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“…The density and specific heat [1] of Fe 3 O 4 in 20:80 EG-Water is estimated using Eqs. (4) and (6) respectively, while that of hybrid nanofluid using Eqs. (5) and 7respectively.…”

Section: Fig3 Ultrasonic Interferometermentioning

confidence: 99%

“…Thus, the interdependence of thermophysical properties plays a major role in determining the heat transfer aspect of the nanofluid. Jospin Zupan et al [6] investigated thermal conductivity and viscosity of Iron (II, III) oxide nanoparticles with water as the base fluid in the concentrations of 0 to 1 gram per liter (g/l). Results indicate that the maximum increase of 37% in thermal conductivity was obtained at 20°C for 1 g/l concentration when compared to that of the base fluid.…”

Section: Introductionmentioning

confidence: 99%

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Heat Transfer Performance of EG-Water Based Fe3O4 and its Hybrid Nanofluids in a Double Pipe Heat Exchanger

Kanthimathi*,

Bhramara,

Shaik

2019

IJRTE

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Nanofluids have good potential in enhancing the heat transfer performance of conventional fluids. In the present paper, the heat transfer performance of Fe3O4 and its Hybrid mixture with Fe3O4 and SiC nanoparticles in the volume ratio of 50:50 in 20:80 Ethylene Glycol (EG) –Water as base fluid are determined experimentally and the results are compared with that of the base fluid. The volume concentration range of nanoparticles considered in the analysis is 0.01% to 0.08%. The experiment is carried under turbulent flow conditions with Reynolds number ranging from 5000 to 20000 in a Double Pipe Heat Exchanger (DPHE) with U-bend. Results indicate that the thermal conductivity of hybrid nanofluid is higher by 16.19% and its viscosity is lower by 11.6% compared to Fe3O4 /20:80 EG-Water nanofluid at an operating temperature of 45°C. The heat transfer coefficient and overall performance of hybrid nanofluid are better than Fe3O4 /20:80 EG-Water nanofluid. The overall performance of Hybrid nanofluid is 27.75% better than that of Fe3O4 /20:80 EG-Water nanofluid.

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“…The density and specific heat [1] of Fe 3 O 4 in 20:80 EG-Water is estimated using Eqs. (4) and (6) respectively, while that of hybrid nanofluid using Eqs. (5) and 7respectively.…”

Section: Fig3 Ultrasonic Interferometermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heat Transfer Performance of EG-Water Based Fe3O4 and its Hybrid Nanofluids in a Double Pipe Heat Exchanger

Kanthimathi*,

Bhramara,

Shaik

2019

IJRTE

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“…Similarly, Cui et al synthesized super-paramagnetic Fe 3 O 4 NPs which were dispersed in perfluoropolyether base fluid, and the ferrofluid exhibited improved viscosity and enhancement of the thermal conductivity [33]. Zupan et al prepared a ferrofluid by dispersing iron (II, III) oxide NPs into water for heat transfer application [34]. Furthermore, Fe 3 O 4 NPs were dispersed into water and a maximum 200% enhancement in the thermal conductivity was observed [35].…”

Section: Introductionmentioning

confidence: 99%

“… 33 Zupan et al prepared a ferrofluid by dispersing iron( ii , iii ) oxide NPs in water for heat transfer application. 34 Furthermore, Fe 3 O 4 NPs were dispersed in water and a maximum 200% enhancement in thermal conductivity was observed. 35 …”

Section: Introductionmentioning

confidence: 99%

Carbon-coated Fe₃O₄core–shell super-paramagnetic nanoparticle-based ferrofluid for heat transfer applications

et al. 2021

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“…Jospin Zupan et al, [10] investigated thermal conductivity and viscosity of Iron (II, III) oxide nanoparticles with water as a base fluid in the concentrations of 0 to 1 gram per liter (g/l). Results indicate that the maximum increase of 37% in thermal conductivity was obtained at 20°C for 1 g/l concentration when compared to that of the base fluid.…”

Section: Introductionmentioning

confidence: 99%

Effect of Low Volume Concentration on Heat Transfer Enhancement of EG-Water Based Fe3O4 Nanofluid

Kanthimathi*,

Bhramara,

Shaik

2020

IJITEE

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Customization of thermophysical properties of the working fluids has tremendous potential in heat transfer enhancement. In the present paper, experimentation is conducted to determine the heat transfer coefficient and friction factor of 20:80 Ethylene Glycol-Water(20:80 EG-Water) based Fe3O4 nanofluid in a Double Pipe Heat Exchanger with U Bend (DPHE). Experiments are performed in the turbulent flow regime at an operating temperature of 47.5°C. Fe3O4 nanoparticles of size less than 50 nm are mixed with 20:80 EG-Water solution in the volume concentration range of 0.02% to 0.08%. Results indicate that as the concentration of nanoparticles increase, the heat transfer coefficient of the nanofluid increases up to 0.04% concentration and then decreases, while the friction factor is observed to increase with the increase of volume concentration. Within the Reynolds number range considered in the analysis, the average enhancement in the heat transfer coefficient is 24.1% at 0.04% concentration compared to that of the base fluid. The average enhancement in the friction factor is observed to be 25.58% at 0.08% concentration of Fe3O4 / 20:80 EG-Water nanofluid compared to that of base fluid.

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Thermal and Rheological Properties of Water-based Ferrofluids and Their Applicability as Quenching Media

Cited by 17 publications

References 20 publications

Heat Transfer Performance of EG-Water Based Fe3O4 and its Hybrid Nanofluids in a Double Pipe Heat Exchanger

Heat Transfer Performance of EG-Water Based Fe3O4 and its Hybrid Nanofluids in a Double Pipe Heat Exchanger

Carbon-coated Fe₃O₄core–shell super-paramagnetic nanoparticle-based ferrofluid for heat transfer applications

Effect of Low Volume Concentration on Heat Transfer Enhancement of EG-Water Based Fe3O4 Nanofluid

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Thermal and Rheological Properties of Water-based Ferrofluids and Their Applicability as Quenching Media

Cited by 17 publications

References 20 publications

Heat Transfer Performance of EG-Water Based Fe3O4 and its Hybrid Nanofluids in a Double Pipe Heat Exchanger

Heat Transfer Performance of EG-Water Based Fe3O4 and its Hybrid Nanofluids in a Double Pipe Heat Exchanger

Carbon-coated Fe3O4core–shell super-paramagnetic nanoparticle-based ferrofluid for heat transfer applications

Effect of Low Volume Concentration on Heat Transfer Enhancement of EG-Water Based Fe3O4 Nanofluid

Contact Info

Product

Resources

About

Carbon-coated Fe₃O₄core–shell super-paramagnetic nanoparticle-based ferrofluid for heat transfer applications