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Study of a Coil Heat Exchanger with an Ice Storage System

Author

Listed:
  • Yan Li

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

  • Zhe Yan

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

  • Chao Yang

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

  • Bin Guo

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

  • Han Yuan

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

  • Jian Zhao

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

  • Ning Mei

    (College of Engineering, Ocean University of China, Qingdao 266100, China)

Abstract

In this study, a coil heat exchanger with an ice storage system is analyzed by theoretical analysis, numerical analysis, and experimental analysis. The dynamic characteristics of ice thickness variation is studied by means of unstable heat conduction theory in cylindrical coordinates, and the change rule of the ice layer thickness is obtained. The computational fluid dynamics method is employed to simulate the flow field and ice melting process of the coil heat exchanger. The effect of the agitator height on the flow characteristics and heat transfer characteristics is investigated. The numerical results show that the turbulence intensity of the fluid near the wall of the heat exchanger is the largest with an agitator height of 80 mm. Furthermore, the process of ice melting is analyzed. The ice on the outer side of the evaporator tube close to the container wall melts faster than the inner side and this agrees well with the experimental result. The experimental study on the process of the operational period and deicing of the coil heat exchanger is conducted and the temperature variation curves are obtained by the arrangement of thermocouples. It is found that the temperature of the evaporating tube increases with increasing height in the process of ice storage.

Suggested Citation

  • Yan Li & Zhe Yan & Chao Yang & Bin Guo & Han Yuan & Jian Zhao & Ning Mei, 2017. "Study of a Coil Heat Exchanger with an Ice Storage System," Energies, MDPI, vol. 10(12), pages 1-13, December.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:12:p:1982-:d:121085
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    References listed on IDEAS

    as
    1. 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. Sergiy Filin & Iouri Semenov & Ludmiła Filina-Dawidowicz, 2021. "Multi-Agent Simulation of Iceberg Mass Loss during Its Energy-Efficient Towing for Freshwater Supply," Energies, MDPI, vol. 14(13), pages 1-16, July.
    2. Pei Cai & Youxue Jiang & He Wang & Liangyu Wu & Peng Cao & Yulong Zhang & Feng Yao, 2020. "Numerical Simulation on the Influence of the Longitudinal Fins on the Enhancement of a Shell-and-Tube Ice Storage Device," Sustainability, MDPI, vol. 12(6), pages 1-14, March.
    3. Lin Du & Yubo Wang & Wujing Wang & Xiangxiang Chen, 2018. "Studies on a Thermal Fault Simulation Device and the Pyrolysis Process of Insulating Oil," Energies, MDPI, vol. 11(12), pages 1-16, December.

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