Skip to main content

Experimental evaluation of friction factor and heat transfer enhancement of twisted tape inserts using TiO2–water nanofluids

Abstract

This paper studies the experimental evaluation of TiO2 nanofluids in enhancing the heat transfer rate and friction factor on a micro-finned tube fitted with twisted tape inserts. Results show that the enhancement in heat transfer and pumping power completely depends on the concentration ratio of nanoparticles, pitch ratio and the type of pitch. Comparisons were made with the previous study with different operating parameters such as twist ratio and twist type. Viscosity of nanofluid increases with an increase in the concentration, which leads to increased pressure drop and pumping power. For the Reynolds number (Re = 4000), the maximum performance ratio was found as 2.1, 2, for concentration of 0.1 and 0.05, respectively. The addition of microfin arrangement inside the circular tube enhanced the performance ratio with minimum concentration of TiO2 nanofluid.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    Heris, S.Z., Ghetemad, S., and Nasr Esfahany, M., Experimental Investigation of Oxide Nanofluids Laminar Flow Convective Heat Transfer, Int. Commun. Heat Mass Transfer, 2006, vol. 33, no. 4, pp. 529–535.

    Article  Google Scholar 

  2. 2.

    Salimpour, M.R. and Dehshiri-Parizi, A., Convective Heat Transfer ofNanofluid Flow through Conduits with Different Cross-Sectional Shapes, J. Mech. Sci. Technol., 2015, vol. 29, no. 2, pp. 707–713.

    Article  Google Scholar 

  3. 3.

    Ouyahia, S., Benkahla, Y.K., and Labsi, N., Numerical Study of the Hydrodynamic and Thermal Proprieties of Titanium Dioxide Nanofluids Trapped in a Triangular Geometry, Arabian J. Sci. Engin., 2016, pp. 1–15.

    Google Scholar 

  4. 4.

    Sonawane, S.S., Khedkar, R.S., and Wasewar, K.,L., Study on Concentric Tube Heat Exchanger Heat Transfer Performance Using Al2O3–Water Based Nanofluids, Int. Commun. Heat Mass Transfer, 2013, vol. 49, pp. 60–68.

    Article  Google Scholar 

  5. 5.

    Eiamsa-ard, S. and Kiatkittipong, K., Heat Transfer Enhancement by Multiple Twisted Tape Inserts and TiO2/Water Nanofluid, Appl. Therm. Engin., 2014, vol. 70, no. 1, pp. 896–924.

    Article  Google Scholar 

  6. 6.

    Hussein, A.M., Bakar, R.A., Kadirgama, K., and Sharma, K.V., Heat Transfer Enhancement with Elliptical Tube under Turbulent Flow TiO2–Water Nanofluid, Therm. Sci. 00, 2014, p.3.

    Google Scholar 

  7. 7.

    Akhavan Behabadi, M.A., Ghazvini, M., and Rasouli, E., Experimental Investigation on Heat Transfer and Pressure Drop of Nanodiamond–Engine Oil Nanofluid in a Microfin Tube, 14th Int. Heat Transfer Conf., American Society ofMechanical Engineers, 2010, pp. 617–623.

    Google Scholar 

  8. 8.

    Kayaci, N., Balcilar, M., Tabatabaei, M., Celen, A., Yildiz, O., Dalkilic, A.S., and Wongwises, A.S., Determination of the Single-Phase Forced Convection Heat Transfer Characteristics of TiO2 Nanofluids Flowing in Smooth and Micro-Fin Tubes by Means of CFD and ANN Analyses, Current Nanosci., 2013, vol. 9, no. 1, pp. 61–80.

    ADS  Google Scholar 

  9. 9.

    Khdher, A.B.M., Sidik, N.C., Mamat, R., and Hamzah, W.A.W., Experimental and Numerical Study of Thermo-Hydraulic Performance of Circumferentially Ribbed Tube with Al2O3 Nanofluid, Int. Commun. Heat Mass Transfer, 2015, vol. 69, pp. 34–40.

    Article  Google Scholar 

  10. 10.

    Karami, M., Akhavan-Behabadi, M.A.A., and Pakdaman, M.F., Heat Transfer and Pressure Drop Characteristics of Nanofluid Flows inside Corrugated Tubes, Heat Transfer Engin., 2016, vol. 37, no. 1, pp. 106–114.

    ADS  Article  Google Scholar 

  11. 11.

    Eiamsa-ard, S., Kiatkittipong, K., and Jedsadaratanachai, W., Heat Transfer Enhancement of TiO2/Water Nanofluid in a Heat Exchanger Tube Equipped with Overlapped Dual Twisted-Tapes, Engin. Sci. Technol. Int. J., 2015, vol. 18, no. 3, pp. 336–350.

    Article  Google Scholar 

  12. 12.

    Mageshbabu, D., Nagarajan, P.K., Sathyamurthy, R., and Krishnan, S.J., Enhancing the Thermal Performance of Al2O3/DIWater Nanofluids inMicrofin Tube Equipped with Straight and Left-Right Twisted Tapes in Turbulent Flow Regime, Exp. Heat Transfer, 2017, vol. 30, no. 4, pp. 267–283.

    ADS  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to D. Magesh Babu.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Magesh Babu, D., Nagarajan, P.K., Madhu, B. et al. Experimental evaluation of friction factor and heat transfer enhancement of twisted tape inserts using TiO2–water nanofluids. J. Engin. Thermophys. 26, 567–579 (2017). https://doi.org/10.1134/S1810232817040117

Download citation