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Numerical and Parametric Study on Open-Type Ceiling Radiant Cooling Panel with Curved and Segmented Structure

Author

Listed:
  • Minzhi Ye

    (Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan)

  • Ahmed A. Serageldin

    (Division of Human Environmental System, Faculty of Engineering, Hokkaido University, N13-W8, Kita Ku, Sapporo 060-8628, Japan
    Department of Mechanical Engineering, Shoubra Faculty of Engineering, Benha University, Cairo 11629, Egypt)

  • Katsunori Nagano

    (Division of Human Environmental System, Faculty of Engineering, Hokkaido University, N13-W8, Kita Ku, Sapporo 060-8628, Japan)

Abstract

A suspended open-type ceiling radiant cooling panel (CRCP) has been proposed recently. The main challenge is improving its cooling performance to overcome limitations for extensive use. Therefore, this study aims to optimize the design of CRCPs with curved and segmented structure to enhance heat transfer. A three-dimensional CFD model was developed to investigate the cooling capacity and heat transfer coefficient of the CRCPs installed inside a single enclosed room. Panel structure was determined based on four dependent parameters: the panel curvature width ( L , m), the panel curvature radius ( r , m), the void distance ( d , m) between each panel or panel segment, and the panel coverage area ( A c , m 2 ). The panel surface area ( A s , m 2 ) and the ratio of panel curvature width to radius ( L / r ) were also examined. A total of 35 designs were compared under 7 different cooling load conditions, and 245 cases were carried out. The results show that the nominal cooling capacity and heat transfer coefficient rise with increasing curvature radius and decreasing curvature width. The void distance plays the most crucial role in influencing cooling performance. It is possible to simultaneously improve cooling performance, achieve uniform temperature distribution, and reduce the number of panels through structure optimization.

Suggested Citation

  • Minzhi Ye & Ahmed A. Serageldin & Katsunori Nagano, 2023. "Numerical and Parametric Study on Open-Type Ceiling Radiant Cooling Panel with Curved and Segmented Structure," Energies, MDPI, vol. 16(6), pages 1-20, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2705-:d:1096956
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    References listed on IDEAS

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    1. Pradeep Shakya & Gimson Ng & Xiaoli Zhou & Yew Wah Wong & Swapnil Dubey & Shunzhi Qian, 2021. "Thermal Comfort and Energy Analysis of a Hybrid Cooling System by Coupling Natural Ventilation with Radiant and Indirect Evaporative Cooling," Energies, MDPI, vol. 14(22), pages 1-19, November.
    2. Borgonovo, Emanuele & Plischke, Elmar, 2016. "Sensitivity analysis: A review of recent advances," European Journal of Operational Research, Elsevier, vol. 248(3), pages 869-887.
    3. Mohammad Hakim Mohd Radzai & Chong Tak Yaw & Chin Wai Lim & Siaw Paw Koh & Nur Amirani Ahmad, 2021. "Numerical Analysis on the Performance of a Radiant Cooling Panel with Serpentine-Based Design," Energies, MDPI, vol. 14(16), pages 1-20, August.
    4. Sang-Hoon Park & Dong-Woo Kim & Goo-Sang Joe & Seong-Ryong Ryu & Myoung-Souk Yeo & Kwang-Woo Kim, 2020. "Establishing Boundary Conditions Considering Influence Factors of the Room Equipped with a Ceiling Radiant Cooling Panel," Energies, MDPI, vol. 13(7), pages 1-21, April.
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