THE EXPERIMENTAL INVESTIGATION OF THE VISCOSITY OF THE AL2O3 NANOFLUID

Abstract

Nanofluids have recently been the subject of interest from researchers in parallel with the developments in nanotechnology. In most of the calculations related to nanofluids, it is necessary to determine their thermophysical properties accurately. The accurate determination of viscosity, which is one of the thermophysical properties of nanofluids, is very important, especially for heat transfer practices. In the study, the viscosity values of the nanofluids in different temperatures, which were prepared by adding Al₂O₃ nanoparticles in gamma phase with volumetric ratios of 0.4%, 0.8%, 1.2% and 1.6% into distilled water, were determined experimentally and the results were presented comparatively with literature.

Keywords

• nanofluids,thermophysical properties,viscosity,preparation of nanofluids

References

1. Anoop K.B., Sundararajan T., Das S.K., 2009. Effect of particle size on the convective heat transfer in nanofluid in the developing region, Int. J. Heat Mass Transfer, 52 (9–10), 2189–2195.
2. Batchelor G.K., 1977. The effect of Brownian motion on the bulk stress in a suspension of spherical particles, Journal of Fluid Mechanics 83 (1), 97–117.
3. Brinkman H.C., 1952.The viscosity of concentrated suspensions and solution, Journal of Chemical Physics 20, 571–581.
4. Chen H., Ding Y., He Y., Tan C.,2007a. Rheological behaviour of ethylene glycol based titania nanofluids, Chem. Phys. Lett., 444 (4–6), 333–337.
5. Chen H., Ding Y., Tan C.,2007b. Rheological behaviour of nanofluidS, New J. Phys., 9 (10), 267.
6. Chevalier J., Tillement O., Ayela F.,2007. Rheological properties of nanofluids flowing through microchannels, Appl. Phys. Lett., 91 (23), 233103.
7. Duangthongsuk W., Wongwises S., 2010. An experimental study on the heat transfer performance and pressure drop of TiO2–water nanofluids flowing under a turbulent flow regime, Int. J. Heat Mass Transfer, 53 (1–3), 334–344.
8. Drew D.A., Passman S.L., 1999. Theory of Multi Component Fluids, Springer, Berlin.

9. Daungthongsuk W., Wongwises S., 2007. A critical review of convective heat transfer of nanofluids, Renewable and Sustainable Energy Reviews. 11/ 5, 797–817
10. Eastman, J. A., Choi, S. U. S., Yu, W., and Thompson, L. J., 2001. Anomalously increased effective thermal conductivity of ethylene glycol-based nanofluids containing copper nanoparticles, Applied Physics Letters, 78/6, 718–720.
11. Goharshadi S., Samiee P., Nancarrow J., 2011. Fabrication of cerium oxide nanoparticles: Characterization and optical properties, Colloid Interf. Sci. 356, 473-480.
12. He Y., Jin Y., Chen H., Ding Y., Cang D., Lu H., 2007.Heat transfer and flow behavior of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe, International Journal of Heat and Mass Transfer 50, 2272–2281.
13. Kulkarni D.P., Das D.K., Vajjha R.S., 2009. Application of nanofluids in heating buildings and reducing pollution, Appl. Energy, 86 (12), 2566–2573.Li X., Zhu D., Wang X., 2007. Evaluation on dispersion behavior of the aqueous copper nano-suspensions, J. Colloid Interface Sci., 3 (10), 456–463.
14. Li X., Zhu D., Wang X., 2007. Evaluation on dispersion behavior of the aqueous copper nano-suspensions, J. Colloid Interface Sci., 3 (10), 456–463.
15. Li Y., Zhoua J., Tung S., Schneider E., Xi S., 2009. A review on development of nanofluid preparation and characterization, 196, 89–101.
16. Lu W., Fan Q., 2008. Study for the particle’s scale effect on some thermophysical properties of nanofluids by a simplified molecular dynamics method, Eng. Anal. Boundary Elem., 32 (4), 282–289.
17. Mahbubul I.M. , Saidur R., Amalina M.A., 2012. Latest developments on the viscosity of nanofluids, International Journal of Heat and Mass Transfer, 55, 874–885.
18. Nguyen C., Desgranges, Galanis F. N., Roy G., Mare T., Boucher S., AnguemintsaH.,2008. Viscosity data for Al2O3–water nanofluid—hysteresis: is heat transfer enhancement using nanofluids reliable? Int. J. Therm. Sci., 47 (2) , 103–111.
19. Peng X., Yu X., 2007. Influence factors on suspension stability of nanofluids, J. Zhejiang Univ.: Eng. Sci., 41, 577–580. B. S.
20. Prasher R., Song D., Wang J., Phelan P., 2006. Measurements of nanofluid viscosity and its implications for thermal applications, Appl. Phys. Lett., 89 (13), 133108.
21. Timofeeva E.V., Routbort J.L., Singh D., 2009. Particle shape effects on thermophysical properties of alumina nanofluids, J. Appl. Phys., 106 (1), 014304.
22. Timofeeva E.V., Yu W., France D.M., Singh D., Routbort J.L., 2011. Nanofluids for heat transfer: an engineering approach, Nanoscale Res. Lett., 6 (1), 182.
23. Wang X., Xu X., and Choi S. U. S., 1999. Thermal Conductivity of Nanoparticle-Fluid Mixture, Journal of Thermophysics and Heat Transfer, 13/4,474–480.
24. Wang B., Li C., Peng X., 2003a. Research on stability of nano-particle suspension, J. Univ. Shanghai Sci. Technol., 25, 209–212.
25. Wang B., Li C., Peng X., 2003b. Stability of nano-particle suspensions, J. Basic Sci. Eng., 11, 169–173.
26. Xuan Y., Li Q., 2000. Heat transfer enhancement of nanofluids, International Journal of Heat and Fluid Flow, 21/1, 58–64.
27. Yu W, Choi SUS.2003.The role of interfacial layers in the enhanced thermal conductivity of nanofluids: a renovated Maxwell model. J Nanoparticle Res , 5, 167–171.