Numerical Investigation of Turbulent Magnetic Nanofluid Flow inside Straight Channels

Abstract:

A numerical study using computational fluid dynamics method with an approach of single phase has been presented in order to determine the effects of the concentration of the nanoparticles and flow rate on the convective heat transfer and friction factor in turbulent regime flowing through three different straight channels (straight, circular and triangular) with different Reynolds number (5000 ≤ Re ≤ 20000) using constant applied heat flux. The nanofluid was used consist of Fe3O4 magnetic nanoparticles with average diameter of (13nm) dispersed in water with four volume fraction (0, 0.2, 0.4, 0.6%). The results revealed that as volume fraction and Reynolds number increase Nusselt number increase and the heat transfer rate in circular cross section tube is better than that in square and triangular cross section channels.

• Periodical: Applied Mechanics and Materials (Volume 819)
• Pages: 382-391
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.819.382
• Online since: January 2016
• Authors: Nor Azwadi Che Sidik*, Mohammed Raad Abdulwahab
• Keywords: Forced Turbulent Heat Convection, Heat Transfer Enhancement, Magnetic Nanofluid, Numerical Methods, Uniform Heat Flux

References

[1] S. Kakaç, A. Pramuanjaroenkij, Review of convective heat transfer enhancement with nanofluids, Int. J. Heat Mass Tran. 52 (2009) 3187-3196.

DOI: 10.1016/j.ijheatmasstransfer.2009.02.006

[2] H. Demir, et al., Numerical investigation on the single phase forced convection heat transfer characteristics of TiO₂ nanofluids in a double-tube counter flow heat exchanger, Int. Commun. Heat Mass. 38 (2011) 218-228.

DOI: 10.1016/j.icheatmasstransfer.2010.12.009

[3] L. Godson, et al., Enhancement of heat transfer using nanofluids—an overview, Renewable and Sustainable Energy Reviews. 14 (2010) 629-641.

DOI: 10.1016/j.rser.2009.10.004

[4] M.C.S. Reddy, V.V. Rao, Experimental investigation of heat transfer coefficient and friction factor of ethylene glycol water based TiO2 nanofluid in double pipe heat exchanger with and without helical coil inserts, Int. Commun. Heat Mass. 50 (2014) 68-76.

DOI: 10.1016/j.icheatmasstransfer.2013.11.002

[5] J. Maxwell, A Treatise on Electricity and Magnetism, Vol. 1 Clarendon Press, Oxford, UK. 1873.

[6] J.C. Maxwell, A treatise on electricity and magnetism, Vol. 1.: Clarendon press. 1881.

[7] V. Bianco, O. Manca, S. Nardini, Numerical investigation on nanofluids turbulent convection heat transfer inside a circular tube, Int. J. Therm. Sci. 50 (2011) 341-349.

DOI: 10.1016/j.ijthermalsci.2010.03.008

[8] S. Murshed, K. Leong, C. Yang, A combined model for the effective thermal conductivity of nanofluids, Appl. Therm. Eng. 29 (2009) 2477-2483.

DOI: 10.1016/j.applthermaleng.2008.12.018

[9] X.Q. Wang, A.S. Mujumdar, Heat transfer characteristics of nanofluids: a review. Int. J. Therm. Sci. 46 (2007) 1-19.

[10] S.E.B. Maiga, et al., Heat transfer enhancement by using nanofluids in forced convection flows, Int. J. Heat Fluid Fl. 26 (2005) 530-546.

DOI: 10.1016/j.ijheatfluidflow.2005.02.004

[11] Q. Li, Y. Xuan, J. Wang, Investigation on convective heat transfer and flow features of nanofluids, J. Heat transf. 125 (2003) 151-155.

DOI: 10.1115/1.1532008

[12] C. Tsai, et al., Effect of structural character of gold nanoparticles in nanofluid on heat pipe thermal performance, Mater. Lett. 58 (2004) 1461-1465.

DOI: 10.1016/j.matlet.2003.10.009

[13] M.K. Moraveji, M. Hejazian, Modeling of turbulent forced convective heat transfer and friction factor in a tube for Fe₃ o₄ magnetic nanofluid with computational fluid dynamics, Int. Commun. Heat Mass Trans. (2012).

DOI: 10.1016/j.icheatmasstransfer.2012.07.003

[14] L. Syam Sundar, et al., Experimental investigation of forced convection heat transfer and friction factor in a tube with Fe₃ O₄ magnetic nanofluid, Exp. Therm. Fluid Sci. 37 (2012) 65-71.

DOI: 10.1016/j.expthermflusci.2011.10.004

[15] S.Z. Heris, et al., Numerical investigation of Al2O3/water nanofluid laminar convective heat transfer through triangular duct, Nanoscale research letters, 6 (2011) 1-10.

DOI: 10.1186/1556-276x-6-179

[16] J.A. Lopez, et al., Synthesis and characterization of Fe 3 O 4 magnetic nanofluid, Revista Latinoamericana de Metalurgia y Materiales. (2010) 60-66.

[17] L. Syam Sundar, M.K. Singh, A. Sousa, Investigation of thermal conductivity and viscosity of Fe₃ O₄ nanofluid for heat transfer applications, Int. Commun. Heat Mass Trans. 44 (2013) 7-14.

DOI: 10.1016/j.icheatmasstransfer.2013.02.014

[18] M.K. Moraveji, et al., Modeling of convective heat transfer of a nanofluid in the developing region of tube flow with computational fluid dynamics, Int. Commun. Heat Mass Trans. 38 (2011) 1291-1295.

DOI: 10.1016/j.icheatmasstransfer.2011.06.011

[19] F.P. Incropera, A.S. Lavine, D.P. DeWitt, Fundamentals of heat and mass transfer, John Wiley & Sons (2011).