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Computational Model to Evaluate the Effect of Passive Techniques in Tube-In-Tube Helical Heat Exchanger

Author

Listed:
  • Miyer Valdes

    (Instituto Tecnológico Metropolitano, Departamento de Electrómecanica, Calle 54 a No. 30-01, Medellin P.A. 050013, Colombia)

  • Juan G. Ardila

    (Instituto Tecnológico Metropolitano, Departamento de Electrómecanica, Calle 54 a No. 30-01, Medellin P.A. 050013, Colombia)

  • Dario Colorado

    (Centro de Investigación en Recursos Energéticos y Sustentables, Universidad Veracruzana, Av. Universidad km 7.5, Col. Santa Isabel, Coatzacoalcos C.P. 96535, Mexico)

  • Beatris A. Escobedo-Trujillo

    (Facultad de Ingeniería, Universidad Veracruzana, Av. Universidad km 7.5, Col. Santa Isabel, Coatzacoalcos C.P. 96535, Mexico)

Abstract

The purpose of this research is to evaluate the effect of twist in the internal tube in a tube-in-tube helical heat exchanger keeping constant one type of ridges. To meet this goal, a Computational Fluid Dynamic (CFD) model was carried out. The effects of the fluid flow rate on the heat transfer were studied in the internal and annular flow. A commercial CFD package was used to predict the flow and thermal development in a tube-in-tube helical heat exchanger. The simulations were carried out in counter-flow mode operation with hot fluid in the internal tube side and cold fluids in the annular flow. The internal tube was modified with a double passive technique to provide high turbulence in the outer region. The numerical results agree with the reported data, the use of only one passive technique in the internal tube increases the heat transfer up to 28.8% compared to smooth tube.

Suggested Citation

  • Miyer Valdes & Juan G. Ardila & Dario Colorado & Beatris A. Escobedo-Trujillo, 2019. "Computational Model to Evaluate the Effect of Passive Techniques in Tube-In-Tube Helical Heat Exchanger," Energies, MDPI, vol. 12(10), pages 1-12, May.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:10:p:1912-:d:232452
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    References listed on IDEAS

    as
    1. Hyung Ju Lee & Jaiyoung Ryu & Seong Hyuk Lee, 2019. "Influence of Perforated Fin on Flow Characteristics and Thermal Performance in Spiral Finned-Tube Heat Exchanger," Energies, MDPI, vol. 12(3), pages 1-13, February.
    2. Xun Yang & Teng Xiong & Jing Liang Dong & Wen Xin Li & Yong Wang, 2017. "Investigation of the Dynamic Melting Process in a Thermal Energy Storage Unit Using a Helical Coil Heat Exchanger," Energies, MDPI, vol. 10(8), pages 1-18, August.
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    Cited by:

    1. Jiří Jaromír Klemeš & Petar Sabev Varbanov & Paweł Ocłoń & Hon Huin Chin, 2019. "Towards Efficient and Clean Process Integration: Utilisation of Renewable Resources and Energy-Saving Technologies," Energies, MDPI, vol. 12(21), pages 1-32, October.

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