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Numerical and Experimental Analysis of Shell and Tube Heat Exchanger with Round and Hexagonal Tubes

Author

Listed:
  • Abdullah Khan

    (Department of Mechanical Engineering, National University of Technology, Islamabad 44000, Pakistan)

  • Imran Shah

    (Department of Aerospace Engineering, College of Aeronautical Engineering, National University of Sciences and Technology, Risalpur 24090, Pakistan)

  • Waheed Gul

    (Department of Mechanical Engineering, National University of Technology, Islamabad 44000, Pakistan)

  • Tariq Amin Khan

    (Department of Aerospace Engineering, College of Aeronautical Engineering, National University of Sciences and Technology, Risalpur 24090, Pakistan)

  • Yasir Ali

    (Department of Aerospace Engineering, College of Aeronautical Engineering, National University of Sciences and Technology, Risalpur 24090, Pakistan)

  • Syed Athar Masood

    (Department of Mechanical Engineering, International Islamic University, Islamabad 44000, Pakistan)

Abstract

Shell and tube heat exchangers are used to transfer thermal energy from one medium to another for regulating fluid temperatures in the processing and pasteurizing industries. Enhancement of a heat transfer rate is desired to maximize the energy efficiency of the shell and tube heat exchangers. In this research work, we performed computational fluid dynamics (CFD) simulations and experimental analysis on the shell and tube heat exchangers using round and hexagonal tubes for a range of flow velocities using both parallel flow and counter flow arrangements. In the present work, the rate of heat transfer, temperature drop, and heat transfer coefficient are computed using three turbulence models: the Spalart–Allmaras, the k-epsilon (RNG), and the k-omega shear stress transport (SST). We further utilized the logarithmic mean temperature difference (LMTD) method to compute the heat transfer and mass flow rates for both parallel and counter flow arrangements. Our results show that the rate of heat transfer is increased by introducing the hexagonal structure tubes, since it has better flow disruption as compared to the round tubes. We further validated our simulation results with experiments. For more accurate results, CFD is performed in counter and parallel flow and it is deduced that the rate of heat transfer directly depends upon the velocity of fluids and the number of turns of the tube.

Suggested Citation

  • Abdullah Khan & Imran Shah & Waheed Gul & Tariq Amin Khan & Yasir Ali & Syed Athar Masood, 2023. "Numerical and Experimental Analysis of Shell and Tube Heat Exchanger with Round and Hexagonal Tubes," Energies, MDPI, vol. 16(2), pages 1-14, January.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:2:p:880-:d:1033708
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    References listed on IDEAS

    as
    1. Shahid Aziz & Abdullah Khan & Imran Shah & Tariq Amin Khan & Yasir Ali & Muhammad Umer Sohail & Badar Rashid & Dong Won Jung, 2022. "Computational Fluid Dynamics and Experimental Analysis of a Wind Turbine Blade’s Frontal Section with and without Arrays of Dimpled Structures," Energies, MDPI, vol. 15(19), pages 1-15, September.
    2. Shubham Sharma & Shalab Sharma & Mandeep Singh & Parampreet Singh & Rasmeet Singh & Sthitapragyan Maharana & Nima Khalilpoor & Alibek Issakhov, 2021. "Computational Fluid Dynamics Analysis of Flow Patterns, Pressure Drop, and Heat Transfer Coefficient in Staggered and Inline Shell-Tube Heat Exchangers," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-10, June.
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    Cited by:

    1. Beata Galiszewska & Ewa Zender-Świercz, 2023. "Development of a Numerical Simulation Methodology for PCM-Air Heat Exchangers Used in Decentralised Façade Ventilation Units," Energies, MDPI, vol. 16(15), pages 1-15, July.

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