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Development and Optimization of a Micro-Baffle for the Enhancement of Heat Transfer in Film Boiling

Author

Listed:
  • Onur Muhammed Sarikaya

    (Design and Simulation Technologies Inc., 26480 Eskisehir, Türkiye)

  • Mustafa Kuzay

    (Design and Simulation Technologies Inc., 26480 Eskisehir, Türkiye)

  • Sibel Yilmaz

    (Design and Simulation Technologies Inc., 26480 Eskisehir, Türkiye)

  • Ender Demirel

    (Design and Simulation Technologies Inc., 26480 Eskisehir, Türkiye
    Department of Civil Engineering, Eskisehir Osmangazi University, 26040 Eskisehir, Türkiye)

Abstract

This study represents the development and optimization of a micro-baffle design to enhance heat transfer in film boiling. Numerical simulations are performed using an open-source computational fluid dynamics (CFD) model, which incorporates the Lee model for momentum source associated with the phase change, and the Volume of Fluid (VOF) method to capture bubble dynamics. A comparison of the numerical results with the previous numerical and experimental data confirmed the validity of the numerical model. The influence of key design parameters was systematically investigated. The results revealed that a vertical baffle provided the maximum performance. The optimal baffle design achieved a 57.4% improvement in the Nusselt number and a 66.4% increase in critical heat flux (CHF). Furthermore, the proposed design facilitated continuous bubble formation, even with a reduced temperature difference between the heated surface and the subcooled liquid, which is crucial for energy-efficient thermal management in engineering systems. Ultimately, this study demonstrates the potential of micro-baffle designs in controlling bubble dynamics and improving heat transfer in film boiling, thereby aiding the design of efficient thermal systems.

Suggested Citation

  • Onur Muhammed Sarikaya & Mustafa Kuzay & Sibel Yilmaz & Ender Demirel, 2024. "Development and Optimization of a Micro-Baffle for the Enhancement of Heat Transfer in Film Boiling," Energies, MDPI, vol. 17(20), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:20:p:5224-:d:1502863
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    References listed on IDEAS

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    1. Jiaojiao Wang & Yanzhong Li & Lei Wang, 2022. "Numerical Study on Pool Film Boiling of Liquid Hydrogen over Horizontal Cylinders," Energies, MDPI, vol. 15(3), pages 1-18, January.
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