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Experimental investigation on forced convection heat transfer of ferrofluid between two-parallel plates

  • Milad Valitabar
  • Masoud Rahimi
  • Neda AzimiEmail author
Original
  • 13 Downloads

Abstract

This study presents an experimental investigation on forced convection heat transfer of ferrofluid between two parallel-plates in the presence of a static magnetic field (SMF). The heat transfer between two parallel-aluminum plates is studied, which heat source with a constant heat flux is applied on the bottom plate. The process of heat transfer is examined for DI-water and ferrofluid in the absence and the presence of the magnetic field. The heat transfer characteristics at the different flow rates, magnet distance from the test section (d = 2–80 mm) and nanoparticle volume fractions (ϕ = 0.25–2%wt) are compared to those of pure water. The results depicted that the heat transfer coefficient (h) and Nusselt number (Nu) of ferrofluid are higher than DI-water. In addition, the results show that applying SMF could enhance the convective heat transfer rate and it decreased by an increase in d that means the decrease in the magnetic field strength. The increase in the nanoparticle volume fraction leads to higher heat transfer enhancement. The maximum value of the heat transfer coefficient and Nusselt number are achieved for SMF with d = 2 mm and ϕ = 1% wt.

Nomenclatures

B

Magnetic field induction (mT)

Cp

Specific heat (J/kg.°C)

Dh

Hydraulic diameter of the microchannel (m)

h

Convective heat transfer coefficient (W/m2. °C)

K

Thermal conductivity of fluid (W/m.°C)

Nu

Nusselt number (−)

Q

Total heat power (W)

q”

Heat flux based on thermal power (W/m2)

T

Temperature (°C)

\( \dot{m} \)

The mass flow rate of fluid flow (kg/s)

U

Fluid velocity (m/s)

Greek letters

ϕ

Volume fraction of nanoparticles (−)

μf

Viscosity of based-fluid (Pa s)

μff

Viscosity of ferrofluid (Pa s)

ρf

Density of based-fluid (kg/m3)

ρff

Density of ferrofluid (kg/m3)

ρp

Density of Fe3O4 nanoparticles (kg/m3)

Subscripts

Ave

Average value

b

Bulk

f

Fluid

ff

Ferrofluid

p

Particles

Acronyms

MNPs

Magnetic nanoparticles

SMF

Static magnetic field

Notes

Acknowledgements

The authors would like to thank Islamic Azad University, Kermanshah Branch for providing the support to carry out this work.

References

  1. 1.
    Karami E, Rahimi M, Azimi N (2018) Convective heat transfer enhancement in a pitted microchannel by stimulation of magnetic nanoparticles. Chem Eng Process 126:156–167CrossRefGoogle Scholar
  2. 2.
    Goharkhah M, Ashjaee M (2014) Effect of an alternating non-uniform magnetic field on ferrofluid flow and heat transfer in a channel. J Magn Magn Mater 362:80–89CrossRefGoogle Scholar
  3. 3.
    Ghasemian M, Najafian Ashrafi Z, Goharkhah M, Ashjaee M (2015) Heat transfer characteristics of Fe3O4 ferrofluid flowing in a mini channel under constant and alternating magnetic fields. J Magn Magn Mater 381:158–167CrossRefGoogle Scholar
  4. 4.
    Lajvardi M, Moghimi-Rad J, Hadi I, Gavili A, Isfahani TD, Zabihi F, Sabbaghzadeh J (2010) Experimental investigation for enhanced ferrofluid heat transfer under magnetic field effect. J Magn Magn Mater 322:3508–3513CrossRefGoogle Scholar
  5. 5.
    Gan Jia Gui N, Stanley C, Nguyen N-T, Rosengarten G (2018) Ferrofluids for heat transfer enhancement under an external magnetic field. Int J Heat Mass Transf 123:110–121CrossRefGoogle Scholar
  6. 6.
    Philip J, Shima PD, Raj B (2007) Enhancement of thermal conductivity in magnetite based nanofluid due to chainlike structure. Appl Phys Lett 91:203–108Google Scholar
  7. 7.
    Parekh K, Lee HS (2010) Magnetic field induced enhancement in thermal conductivity of magnetite nanofluid. J Appl Phys 107:09A310CrossRefGoogle Scholar
  8. 8.
    Abareshi M, Goharshadi EK, Zebarjad SM, Fadafan HK, Youssefi A (2010) Fabrication, characterization and measurement of thermal conductivity of Fe3O4 nanofluids. J Magn Magn Mater 322:3895–3901CrossRefGoogle Scholar
  9. 9.
    Azizian R, Doroodchi E, McKrell T, Buongiorno J, Hu LW, Moghtaderi B (2014) Effect of magnetic field on laminar convective heat transfer of magnetite nanofluids. Int J Heat Mass Transf 68:94–109CrossRefGoogle Scholar
  10. 10.
    Gavili A, Zabihi F, Isfahani TD, Sabbaghzadeh J (2012) The thermal conductivity of water base ferrofluids under magnetic field. Exp Thermal Fluid Sci 41:94–98CrossRefGoogle Scholar
  11. 11.
    Shima PD, Philip J (2011) Tuning of thermal conductivity and rheology of nanofluidsusing an external stimulus. J Phys Chem C 115:20097–20104CrossRefGoogle Scholar
  12. 12.
    Strek T, Jopek H (2007) Computer simulation of heat transfer through a ferrofluid. Phys Status Solidi 244:1027–1037CrossRefGoogle Scholar
  13. 13.
    Xuan Y, Li Q, Ye M (2007) Investigations of convective heat transfer in ferrofluid microflows using lattice-Boltzmann approach. Int J Therm Sci 46:105–111CrossRefGoogle Scholar
  14. 14.
    Aminfar H, Mohammadpourfard M, Zonouzi SA (2013) Numerical study of the ferrofluid flow and heat transfer through a rectangular duct in the presence of a non-uniform transverse magnetic field. J Magn Magn Mater 327:31–42CrossRefGoogle Scholar
  15. 15.
    Ashjaee M, Goharkhah M, Khadem LA, Ahmadi R (2014) Effect of magnetic feld on the forced convection heat transfer and pressure drop of a magnetic nanofluid in a miniature heat sink. Heat Mass Transf 51:953–964CrossRefGoogle Scholar
  16. 16.
    Bahiraei M, Hangi M (2014) Natural convection of magnetic nanofluid in a cavity under non-uniform magnetic field: a novel application. J Supercond Nov Magn 27:587–594CrossRefGoogle Scholar
  17. 17.
    Yarahmadi M, Moazami Goudarzi H, Shafii MB (2015) Experimental investigation intolaminar forced convective heat transfer of ferrofluids under constant and oscillating magnetic field with different magnetic field arrangements and oscillation modes. Exp Thermal Fluid Sci 68:601–611CrossRefGoogle Scholar
  18. 18.
    Hangi M, Bahiraei M (2018) A two-phase simulation for ferrofluid flow between two parallel plates under localized magnetic field by applying Lagrangian approach for nanoparticles. European Journal of Mechanics/B FluidsGoogle Scholar
  19. 19.
    Ghorbani B, Ebrahimi S, Vijayaraghavan K (2018) CFD modeling and sensitivity analysis of heat transfer enhancement of a ferrofluid flow in the presence of a magnetic field. Int J Heat Mass Transf 127:544–552CrossRefGoogle Scholar
  20. 20.
    Nessab W, Kahalerras H, Fersadou B, Hammoudi D (2019) Numerical investigation of ferrofluid jet flow and convective heat transfer under the influence of magnetic sources. Applied Therm Eng 150:271–284CrossRefGoogle Scholar
  21. 21.
    Sha L, Ju Y, Zhang H (2017) The influence of the magnetic field on the convective heat transfer characteristics of Fe3O4/water nanofluids. Applied Therm Eng 126:108–116CrossRefGoogle Scholar
  22. 22.
    Ghofrani A, Dibaei MH, Hakim Sima A, Shafii MB (2013) Experimental investigation on laminar forced convection heat transfer of ferrofluids under an alternating magnetic field. Exp Thermal Fluid Sci 49:193–200CrossRefGoogle Scholar
  23. 23.
    Dizaji AS, Pourfard MM, Aminfar H (2018) A numerical simulation of the water vapor bubble rising in ferrofluid by Volume of Fluid model in the presence of a magnetic field. J Magn Magn Mater 449:185–196CrossRefGoogle Scholar
  24. 24.
    Wang G, Qian N, Ding G (2019) Heat transfer enhancement in microchannel heat sink with bidirectional rib. Int J Heat Mass Transf 136:597–609CrossRefGoogle Scholar
  25. 25.
    Hejazian M, Nguyen NT (2014) Negative magnetophoresis in diluted ferrofluid flow. Lab Chip 15:2998–3005CrossRefGoogle Scholar
  26. 26.
    Zhu GP, Nguyen NT (2012) Magnetofluidic spreading in microchannels. Microfluid Nanofluid 13:655–663CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Chemical Engineering, Kermanshah BranchIslamic Azad UniversityKermanshahIran
  2. 2.CFD research Center, Chemical Engineering DepartmentRazi UniversityKermanshahIran

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