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Significance of parameters affecting the performance of a passive down-draft evaporative cooling (PDEC) tower with a spray system

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  • Kang, Daeho
  • Strand, Richard K.

Abstract

PDEC towers with spray systems are known to achieve substantial energy savings. Various parameters such as the wet-bulb depression, the tower height, and the wind speed have been known to be key factors affecting the performance of the system. To date, the significance of these parameters and other important factors have not been adequately treated in the literature. There also has been a lack of models that can successfully investigate potential benefits of the system under various conditions where this particular system could be applicable. To address these critical issues, this study performed a parametric analysis by using a FLUENT model validated against experimental data. It demonstrated the significance of individual parameters including water droplet sizes. As a result, practical design guidelines for important system parameters were presented. A statistical analysis was then used to formulate analytic models that account for all of the relationships found in this study between the parameters and the supply air conditions of the system. Two regression equations were formulated for predicting supply air temperature and velocity.

Suggested Citation

  • Kang, Daeho & Strand, Richard K., 2016. "Significance of parameters affecting the performance of a passive down-draft evaporative cooling (PDEC) tower with a spray system," Applied Energy, Elsevier, vol. 178(C), pages 269-280.
    • Handle: RePEc:eee:appene:v:178:y:2016:i:c:p:269-280
    DOI: 10.1016/j.apenergy.2016.06.055
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    References listed on IDEAS

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    Cited by:

    1. Mohammad Abdullah Alshenaifi & Abdelhakim Mesloub & Walid Hassen & Mohammed Awad Abuhussain & Lioua Kolsi, 2022. "Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate," Mathematics, MDPI, vol. 10(19), pages 1-16, October.
    2. Kang, Daeho & Strand, Richard K., 2018. "Performance control of a spray passive down-draft evaporative cooling system," Applied Energy, Elsevier, vol. 222(C), pages 915-931.
    3. Cui, Haijiao & Li, Nianping & Peng, Jinqing & Yin, Rongxin & Li, Jingming & Wu, Zhibin, 2018. "Investigation on the thermal performance of a novel spray tower with upward spraying and downward gas flow," Applied Energy, Elsevier, vol. 231(C), pages 12-21.
    4. Qingsong Ma & Guangwei Qian & Menghui Yu & Lingrui Li & Xindong Wei, 2024. "Performance of Windcatchers in Improving Indoor Air Quality, Thermal Comfort, and Energy Efficiency: A Review," Sustainability, MDPI, vol. 16(20), pages 1-26, October.
    5. Alsailani, M. & Montazeri, H. & Rezaeiha, A., 2021. "Towards optimal aerodynamic design of wind catchers: Impact of geometrical characteristics," Renewable Energy, Elsevier, vol. 168(C), pages 1344-1363.
    6. Xuchen Fan & Xiaofeng Lu & Jiping Wang & Zilong Li & Quanhai Wang & Zhonghao Dong & Rongdi Zhang, 2021. "Performance Evaluation of a Maisotsenko Cycle Cooling Tower with Uneven Length of Dry and Wet Channels in Hot and Humid Conditions," Energies, MDPI, vol. 14(24), pages 1-15, December.
    7. Andrés Soto & Pedro Martínez & Victor M. Soto & Pedro J. Martínez, 2021. "Analysis of the Performance of a Passive Downdraught Evaporative Cooling System Driven by Solar Chimneys in a Residential Building by Using an Experimentally Validated TRNSYS Model," Energies, MDPI, vol. 14(12), pages 1-16, June.

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