Effect of Nanoparticle Concentration on Thermo-Hydraulic Behavior of a Nanofluid in a Horizontal Tube with Constant Heat Flux and Mass Flow Rate

Abstract:

How nanoparticle concentration affects on thermal and hydrodynamic parameters of a nanofluid (water+Al₂O₃) is numerically investigated in a horizontal tube while these parameters are impressed by buoyancy force under constant heat flux and mass flow rate. Comparisons with previously published experimental and numerical works on mixed convection in horizontal tubes show good agreements between the results. Results which are obtained using the two – phase mixture model indicate that adding the nanoparticles causes changes in the properties of nanofluid and finally increases the temperature of the flow. Whereas, dimensionless pressure drop along the tube length could increase with the nanoparticle concentration.

• Periodical: Applied Mechanics and Materials (Volumes 110-116)
• Pages: 3650-3656
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.110-116.3650
• Online since: October 2011
• Authors: S. Mirmasoumi, A. Behzadmehr
• Keywords: Constant Heat Flux, Horizontal Tube, Laminar Mixed Convection, Mass Flow Rate, Nanofluid, Two Phase Mixture Model

References

[1] J.C. Maxwell: A Treatise on Electricity and magnetism (Clarendon press, Oxford, Uk, 1873).

[2] S.U.S. Choi: Enhancing thermal conductivity of fluid with nanoparticles, developments and applications of non Newtonian flow, ASME, FED 231/MD 66, 99–105, (1995).

[3] H. Masuda, A. Ebata, K. Teramae and N. Hishinuma: Alteration of thermal conductivity and viscosity of liquid by dispersing ultra-fine particles (dispersions of -Al2O3, SiO2, and TiO2 ultra-fine particles), Netsu Bussei (Japan), 4, p.227–233. (1993).

DOI: 10.2963/jjtp.7.227

[4] S. Lee, S.U.S. Choi, S. Li and J.A. Eastman: Measuring thermal conductivity of fluids containing oxide nanoparticles, J. of Heat Transfer, 121, pp.280-289, (1999).

DOI: 10.1115/1.2825978

[5] J. A. Eastman, S. U. S. Choi, S. Li, W. Yu and L.J. Thomson: Anomalously increased effective thermal conductivity of ethylene glycol based nanofluid containing copper nanoparticles, Appl. Phys. Lett., 78, pp.718-720, (2001).

DOI: 10.1063/1.1341218

[6] M. Akbari, A. Behzadmehr and F. Shahraki: Fully developed mixed convection in horizontal and inclined tubes with uniform heat flux using nanofluid, Int. J. of Heat and Fluid Flow, Volume 29, Issue 2, 545-556, (2008).

DOI: 10.1016/j.ijheatfluidflow.2007.11.006

[7] A. Akbarinia, A. Behzadmehr: Numerical study of laminar mixed convection of a nanofluid in horizontal curved tubes, Applied Thermal Engineering, Volume 27, Issues 8-9, 1327-1337, (2007).

DOI: 10.1016/j.applthermaleng.2006.10.034

[8] Y. M. Xuan, Q. Li: Investigation on convective heat transfer and flow features of nanofluids, J. Heat Transfer, 125, 151–155, (2003).

DOI: 10.1115/1.1532008

[9] Y. M. Xuan, Q. Li: Investigation on convective heat transfer and flow features of nanofluids, J. Heat Transfer, 125, 151–155, (2003).

DOI: 10.1115/1.1532008

[10] A. Behzadmehr, M. Saffar-Avval and N. Galanis: Prediction of turbulent forced convection of a nanofluid in a tube with uniform heat flux using a two phase approach, Int. J. Heat Fluid Flow, 28, 211–219, (2008).

DOI: 10.1016/j.ijheatfluidflow.2006.04.006

[11] S. Mirmasoumi, A. Behzadmehr: Numerical Study of Laminar Mixed Convection of a Nanofluid in a Horizontal Tube Using Two-phase Mixture Model, J. Applied Thermal engineering, 28, 717-727, (2008).

DOI: 10.1016/j.applthermaleng.2007.06.019

[12] S. Mirmasoumi, A. Behzadmehr: Effect of nanoparticles mean diameter on mixed convection heat transfer of a nanofluid in a horizontal tube, Int. J. Heat and Fluid Flow, 29 (2), 557-566, (2008).

DOI: 10.1016/j.ijheatfluidflow.2007.11.007

[13] S. Alikhani, A. Behzadmehr and M. Saffar-Avval: Numerical study of nanofluid mixed convection in a horizontal curved tube using two-phase approach, Heat and Mass Transfer, 47, 107-118, (2011).

DOI: 10.1007/s00231-010-0677-4

[14] G.S. Barozzi, E. Zanchini, and M. Mariotti: Experimental investigation of combined forced and free convection in horizontal and inclined tubes, Int. J. Meccanica, 20, pp.18-27, (1998).

DOI: 10.1007/bf02337057

[15] D. Choudhury and S.V. Patankar: Combined forced and free laminar convection in the entrance region of an inclined isothermal tube, ASME J. Heat Transfer Trans. 110, 901-909, (1988).

DOI: 10.1115/1.3250591