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Journal of Mechanical Science and Technology

, Volume 29, Issue 2, pp 697–705 | Cite as

CFD analysis of heat transfer and pressure drop in helically coiled heat exchangers using Al2O3 / water nanofluid

  • P. C. Mukesh Kumar
  • K. Palanisamy
  • J. Kumar
  • R. Tamilarasan
  • S. Sendhilnathan
Article

Abstract

In this investigation, the heat transfer coefficient and pressure drop of a helically coiled tube heat exchanger handling Al2O3/ water nanofluids is made by using computational fluid dynamics fluent (CFD) software package. This was done under laminar flow condition in the Dean number (De) range of 1650–2650 and the nanoparticles volume concentration of 0.1%, 0.4% and 0.8%. The effect of some important parameters such as nanoparticle volume concentration and Dean number (De) on heat transfer and pressure drop is studied. The coiled tube side Nusselt number (Nu) is found to be 30% higher than water at maximum De. The maximum pressure drop is found to be 9% higher than water. It is also found that the Nu and pressure drop significantly increase with increasing particle volume concentration and De. It is also found that the experimental friction factor increases with increasing the particle volume concentration and De. The CFD Nu and pressure drop results have been compared with the experimental and theoretical results. On comparison, it is found that the CFD simulation results show good agreement with the experimental and theoretical results. It is concluded that the CFD approach gives good prediction for heat transfer coefficient and pressure drop in a shell and helically coiled tube heat exchanger using Al2O3/ water nanofluids. The average relative error between experimental Nu, pressure drop results and CFD results are found to be 8.5% and 9.5% respectively.

Keywords

Computational fluid dynamics Al2O3 /water nanofluid Particle volume concentration Helically coiled tube Pressure drop Thermal conductivity Nanofluid viscosity 

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References

  1. [1]
    A. N. Dravid, K. A. Smith, E. W. Merrill and P. L. T. Brain, Effect of secondary fluid motion on laminar flow heat transfer in helically coiled tubes, AlChE J, 17 (1971) 114–1122.CrossRefGoogle Scholar
  2. [2]
    P. S. Srinivasan, S. N. Purkar and F. A. Holland, Friction factor for coils, Int.J. Chemical Engg Transaction, 48 (1970) T156–T161.Google Scholar
  3. [3]
    S. U. S. Choi and J. A. Eastman, Measuring of thermal conductivity of fluids containing oxide nanoparticles, J. Heat Trans., 121 (1999) 280–289.CrossRefGoogle Scholar
  4. [4]
    S. K. Das, N. Putra and W. Roetzel, Temperature dependence of thermal conductivity for nanofluids, ASME J. Heat Trans., 125 (2003) 567–574.CrossRefGoogle Scholar
  5. [5]
    S. Lee, An experimental apparatus measuring convective heat transfer coefficient from a heated fine wire traversing in nanofluids, J.Mechanical Sci. and Tech., 25 (1) (2011) 135–142.CrossRefGoogle Scholar
  6. [6]
    D. R. Shin, S. H. Rhi, T. K. Lim and J. C. Jang, Comparative study on heat transfer characteristics of nanofluidic thermosyphon and grooved heat pipe, J. Mechanical Sci.and Tech., 25 (6) (2011) 1391–1398.CrossRefGoogle Scholar
  7. [7]
    P. C. M. Kumar, J. Kumar and S. Suresh, Heat transfer and friction factor studies in helically coiled tube using Al2O3 / water nanofluid, European J. Scientific Res., 82 (2) (2012) 161–172.Google Scholar
  8. [8]
    P. C. M. Kumar, J. Kumar, R. Tamilarasan, Sendhil Nathan and S. Suresh, Heat transfer enhancement and pressure drop analysis in a helically coiled tube using Al2O3 / water nanofluid., J. Mechanical Sci.and Tech., 28 (5) (2014) 1841–1847.CrossRefGoogle Scholar
  9. [9]
    Y. Xuan and Q. Li, Investigation on Convective Heat transfer and flow features of Nanofluids, J. HeatTrans., 125 (2003) 151–155.CrossRefGoogle Scholar
  10. [10]
    K. J. Park, D. G. Kang, D. Jung and S. E. Shim, Nucleate boiling heat transfer in nanotubes up to critical heat fluxes, J.Mechanical Sci. and Tech, 25 (10) (2011) 2647–2655.CrossRefGoogle Scholar
  11. [11]
    A. Akbarinia, Impacts of nanofluids flow on skin friction factor and Nusselt number in curved tubes with constant mass flow, Int. J. Heat and Fluid Flow, 29 (2008) 229–241.CrossRefGoogle Scholar
  12. [12]
    P. C. M. Kumar, J. Kumar and S. Suresh, Experimental investigation on convective heat transfer and friction factor in a helically coiled tube with Al2O3 / water nanofluid, J. Mechanical Sci. and Tech., 27 (2013) 239–245.CrossRefGoogle Scholar
  13. [13]
    J. S. Jayakumar, S. M. Mahajani, J. C. Mandal, K. N. Iyer, P. K. Vijayanb, CFD analysis of single-phase flows inside helically coiled tubes, Comp. and Chem. Eng., 34 (4) (2010) 430–446.CrossRefGoogle Scholar
  14. [14]
    J. S. Jayakumar, S. M. Mahajani, J. C. Mandal, P. K. Vijayanb and Rohidas Bhoi, Experimental and CFD estimation of heat transfer in helically coiled heat exchangers, Chem. Eng. Research and Design., 86 (3) (2008) 221–232.CrossRefGoogle Scholar
  15. [15]
    M. H. Fard, M. N. Esfahany and M. R. Talaie, Numerical study of convective heat transfer of nanofluids in a circular tube two-phase model versus single-phase model, Int. Commn. in Heat and Mass Transfer., 37 (2010) 91–97.CrossRefGoogle Scholar
  16. [16]
    W. I. A. Aly, Numerical study on turbulent heat transfer and pressure drop of nanofluid in coiled tube-in tube heat exchangers, Energy Conversion and Mgt., 79 (2014) 304–316.CrossRefGoogle Scholar
  17. [17]
    H. A. Mohammed and K. Narrein, Thermal and hydraulic characteristics of nanofluid flow in a helically coiled tube heat exchanger, Int.Commn. in Heat and Mass Transfer., 39 (9) (2012) 1375–1383.CrossRefGoogle Scholar
  18. [18]
    J. Y. Jung, J. W. Lee and Y. T. Kang, CO2 absorption characteristics of nanoparticle suspensions in methanol, J. Mechanical Sci. and Tech., 26 (8) (2012) 2285–2290.CrossRefGoogle Scholar
  19. [19]
    G. A. Sheikhzadeh, M. Nikfar and A. Fattahi, Numerical study of natural convection and entropy generation of Cuwater nanofluid around an obstacle in a cavity, J. Mechanical Sci. and Tech., 26 (10) (2012) 3347–3356.CrossRefGoogle Scholar
  20. [20]
    Malasekera and Versteeg, An Introduction to Computational Fluid Dynamics, McGraw Hill, New York (1960).Google Scholar
  21. [21]
    G. Huminic and A. Huminic, Heat transfer characteristics in double tube helical heat exchangers using nanofluids, Int. Journal of Heat and Mass Trans., 54 (2011) 4280–4287.CrossRefzbMATHGoogle Scholar
  22. [22]
    N. Jamshidi, M. Farhadi, K. Sedighi and D. D. Ganji, Optimization of design parameters for nanofluids flowing inside helical coils, Int. Commn. in Heat and Mass Trans., 39 (2012) 311–317.CrossRefGoogle Scholar
  23. [23]
    A. Akbarinia and A. Behzadmehr, Numerical study of laminar mixed convection of a nanofluid in horizontal curved tubes, Applied Thermal Eng., 27 (2007) 1327–1337.CrossRefGoogle Scholar
  24. [24]
    S. Z. Heris, S. Gh. Etemad and M. N. Esfahany, Experimental investigation of oxide nanofluid laminar flow convective heat transfer in circular tube, Intl. Commun. in Heat and Mass Transfer., 33 (2006) 529–533.CrossRefGoogle Scholar
  25. [25]
    M. K. Moraveji and R. M. Ardehali, CFD modeling (Comparing single and two-phase approaches) on thermal performance of Al2O3/water nanofluid in mini–channel heat sink, Int. commn. in heat and Mass Trans,. 44 (2013) 157–164.CrossRefGoogle Scholar
  26. [26]
    B. C. Pak and Y. L. Cho, Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles, Exp. Heat Trans., 11 (1998) 151–170.CrossRefGoogle Scholar
  27. [27]
    M. Chandrasekar, S. Suresh and R. Srinivasan, New analytical models to investigate thermal conductivity of nanofluids, J. Nano Sci. and Nano Tech., 9 (2009) 533–538.CrossRefGoogle Scholar

Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • P. C. Mukesh Kumar
    • 1
  • K. Palanisamy
    • 2
  • J. Kumar
    • 3
  • R. Tamilarasan
    • 1
  • S. Sendhilnathan
    • 1
  1. 1.University College of EngineeringPattukkottaiIndia
  2. 2.M. Kumarasamy College of EngineeringKarurIndia
  3. 3.Kalaivani College of TechnologyCoimbatoreIndia

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