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Experimental study of heat transfer enhancement in a helical tube heat exchanger by alumina nanofluid as current flow

  • Hadi Barzegari
  • Akram TavakoliEmail author
  • Davood Jalali Vahid
  • Ensie Bekhradinassab
Original
  • 16 Downloads

Abstract

In the present study, the heat transfer rate through a shell and helical tube heat exchanger with alumina nanofluid as current flow was investigated and the obtained results were compared to those of the distilled water. Effects of alumina concentration in the nanofluid (0–0.5 vol.%) and the temperature of hot fluid (40–70 °C) were evaluated at different flow rates (2–3.5 L/min). Heat transfer coefficients were determined using Wilson method. The overall heat transfer rate decreased with Dean number at low Dean numbers and increased after passing through a minimum at higher dean numbers due to simultaneous and competitive effects of convective heat transfer coefficient and temperature difference on heat transfer rate. At low Dean numbers, the effect of temperature difference dominated the effect of convective heat transfer coefficient and at high Dean numbers, the convective heat transfer coefficient effect was more determining. Higher temperature of the hot fluid led to higher convective heat transfer coefficient due to increased thermal conductivity of the fluid at higher temperatures. Compared to the distilled water, higher convective heat transfer coefficient was obtained for nanofluid as the current flow at low volume fractions of the nanofluid. The maximum heat transfer rate (9505.6 W) was obtained at a volume fraction of 0.016, flow rate of 3.5 L/min, and temperature of 70 °C.

Notes

References

  1. 1.
    Nitsche M, Gbadamosi RO (2016) Chapter 11- double pipe, helical coil, and cross flow heat exchanger. Heat exchanger design guide, pp 229–245Google Scholar
  2. 2.
    Chingulpitak S, Wongwises S (2011) A comparison of flow characteristics of refrigerants flowing through adiabatic straight and helical capillary tubes. Int Commun Heat Mass Transf 38:398–404CrossRefGoogle Scholar
  3. 3.
    Dubba SK, Kumar R (2017) Flow of refrigerants through capillary tubes: a state-of-the-art. Exp Thermal Fluid Sci 81:370–381CrossRefGoogle Scholar
  4. 4.
    Jadhav P, Agrawal N, Patil O (2017) Flow characteristics of helical capillary tube for trans critical CO2 refrigerant flow. Energy Procedia 109:431–438CrossRefGoogle Scholar
  5. 5.
    Wu Z, Yang F, Zhu L, Feng P, Zhang Z, Wang Y (2016) Improvement in hydrogen desorption performances of magnesium based metal hydride reactor by incorporating helical coil heat exchanger. Int J Hydrog Energy 41:16108–16121CrossRefGoogle Scholar
  6. 6.
    Rennie TJ, Raghavan VGS (2005) Experimental studies of a double-pipe helical heat exchanger Timot. Exp Thermal Fluid Sci 29:919–924CrossRefGoogle Scholar
  7. 7.
    Huminic G, Huminic A (2011) Heat transfer characteristics in double tube helical heat exchangers using nanofluids. Int J Heat Mass Transf 54:4280–4287CrossRefzbMATHGoogle Scholar
  8. 8.
    Etghani MM, Baboli SA (2017) Numerical investigation and optimization of heat transfer and exergy loss in shell and helical tube heat exchanger. Appl Therm Eng 121:294–301CrossRefGoogle Scholar
  9. 9.
    Hormozi F, ZareNezhad B, Allahyar HR (2016) An experimental investigation on the effects of surfactants on the thermal performance of hybrid nanofluids in helical coil heat exchangers. Int Commun Heat Mass Transf 78:271–276CrossRefGoogle Scholar
  10. 10.
    Srinivas T, Vinod AV (2016) Heat transfer intensification in a shell and helical coil heat exchanger using water-based nanofluids. Chem Eng Process 102:1–8CrossRefGoogle Scholar
  11. 11.
    Bahiraei M, Hangi M, Saeedan M (2015) A novel application for energy efficiency improvement using nanofluid in shell and tube heat exchanger equipped with helical baffles. Energy 93:2229–2240CrossRefGoogle Scholar
  12. 12.
    Jamshidi N, Farhadi M, Ganji DD, Sedighi K (2013) Experimental analysis of heat transfer enhancement in shell and helical tube heat exchangers. Appl Therm Eng 51:644–652CrossRefGoogle Scholar
  13. 13.
    Shokouhmand H, Salimpour MR, Akhavan-Behabadi MA (2008) Experimental investigation of shell and coiled tube heat exchangers using Wilson plots. Int Commun Heat Mass Transf 35:84–92CrossRefGoogle Scholar
  14. 14.
    Kumar V, Saini S, Sharma M, Nigam KDP (2006) Pressure drop and heat transfer study in tube-in-tube helical heat exchanger. Chem Eng Sci 61:4403–4416CrossRefGoogle Scholar
  15. 15.
    Panahi D, Zamzamian K (2017) Heat transfer enhancement of shell-and-coiled tube heat exchanger utilizing helical wire turbulator. Appl Therm Eng 115:607–615CrossRefGoogle Scholar
  16. 16.
    Mohapatra T, Padhi BN, Sahoo SS (2017) Experimental investigation of convective heat transfer in an inserted coiled tube type three fluid heat exchanger. Appl Therm Eng 117:297–307CrossRefGoogle Scholar
  17. 17.
    Fernández-Seara J, Uhía FJ, Sieres J, Campo A (2007) A general review of the Wilson plot method and its modifications to determine convection coefficients in heat exchange devices. Appl Therm Eng 27:2745–2757CrossRefGoogle Scholar
  18. 18.
    Zhu H, Wang H, Kou G (2014) Experimental study on the heat transfer enhancement by dean vortices in spiral tubes. Int J Energy Environ 5:317–326Google Scholar
  19. 19.
    Pak BC, Cho YI (1998) Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles. Exp Heat Transf 11:151–170CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Chemical Engineering DepartmentSahand University of TechnologyTabrizIslamic Republic of Iran
  2. 2.Mechanical Engineering DepartmentSahand University of TechnologyTabrizIslamic Republic of Iran

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