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Experimental Study of a Novel Non-Packing Closed Evaporative Cooling Tower with Vertical 3D Deformation Tubes

Author

Listed:
  • Aimin Tu

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Shijie Liu

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Xun Mo

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Erxiong Chen

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

  • Xuefeng Zhan

    (Harbin Air Conditioning Co., Ltd., Harbin 150078, China)

  • Dongsheng Zhu

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China)

Abstract

The closed evaporative cooling tower (CECT) is widely used in the field of industrial cooling. At present, most CECTs still mainly adopt the horizontal-tube falling-film cooling method. In this paper, a novel vertical CECT using 3D deformation tubes is developed. To investigate the vertical surface falling-film evaporative cooling effect of this novel cooling equipment, a traditional horizontal CECT was modified to produce a prototype of vertical non-packing CECT. The cooling performance of the novel vertical CECT has been investigated and compared to the previous traditional horizontal CECT by experimental method. The results show that the convective heat transfer coefficient of the water film outside the tube was increased by 5.87~12.95% and the overall cooling performance was increased by 7.31% on average. This indicates that the cooling load can be increased by changing the traditional horizontal-tube falling-film evaporative cooling method to the vertical falling-film evaporative cooling method. Moreover, the heat flux of the novel vertical CECT decreases by about 7% when the wet bulb temperature increases by 1 °C under the test range of wet bulb temperature, which indicates that the ambient wet bulb temperature has an obvious influence on the cooling load. The research results can provide reference for the optimization design of the CECT.

Suggested Citation

  • Aimin Tu & Shijie Liu & Xun Mo & Erxiong Chen & Xuefeng Zhan & Dongsheng Zhu, 2022. "Experimental Study of a Novel Non-Packing Closed Evaporative Cooling Tower with Vertical 3D Deformation Tubes," Energies, MDPI, vol. 15(24), pages 1-13, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:24:p:9336-:d:998647
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