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Thermal Assessment of a Novel Combine Evaporative Cooling Wind Catcher

Author

Listed:
  • Azam Noroozi

    (School of Architecture, National Technical University of Athens, Section III, 42 Patission Av., 10682 Athens, Greece)

  • Yannis S. Veneris

    (School of Architecture, National Technical University of Athens, Section III, 42 Patission Av., 10682 Athens, Greece)

Abstract

Wind catchers are one of the oldest cooling systems that are employed to provide sufficient natural ventilation in buildings. In this study, a laboratory scale wind catcher was equipped with a combined evaporative system. The designed assembly was comprised of a one-sided opening with an adjustable wetted pad unit and a wetted blades section. Theoretical analysis of the wind catcher was carried out and a set of experiments were organized to validate the results of the obtained models. The effect of wind speed, wind catcher height, and mode of the opening unit (open or closed) was investigated on temperature drop and velocity of the moving air through the wind catcher as well as provided sensible cooling load. The results showed that under windy conditions, inside air velocity was slightly higher when the pad was open. Vice versa, when the wind speed was zero, the closed pad resulted in an enhancement in air velocity inside the wind catcher. At wind catcher heights of 2.5 and 3.5 m and wind speeds of lower than 3 m/s, cooling loads have been approximately doubled by applying the closed-pad mode.

Suggested Citation

  • Azam Noroozi & Yannis S. Veneris, 2018. "Thermal Assessment of a Novel Combine Evaporative Cooling Wind Catcher," Energies, MDPI, vol. 11(2), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:442-:d:132131
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    References listed on IDEAS

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    1. Bouchahm, Yasmina & Bourbia, Fatiha & Belhamri, Azeddine, 2011. "Performance analysis and improvement of the use of wind tower in hot dry climate," Renewable Energy, Elsevier, vol. 36(3), pages 898-906.
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    4. Montazeri, H. & Montazeri, F. & Azizian, R. & Mostafavi, S., 2010. "Two-sided wind catcher performance evaluation using experimental, numerical and analytical modeling," Renewable Energy, Elsevier, vol. 35(7), pages 1424-1435.
    5. Sajad M.R. Khani & Mehdi N. Bahadori & Alireza Dehghani-Sanij & Ahmad Nourbakhsh, 2017. "Performance Evaluation of a Modular Design of Wind Tower with Wetted Surfaces," Energies, MDPI, vol. 10(7), pages 1-20, June.
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    Cited by:

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    2. Majed Abuseif & Zhonghua Gou, 2018. "A Review of Roofing Methods: Construction Features, Heat Reduction, Payback Period and Climatic Responsiveness," Energies, MDPI, vol. 11(11), pages 1-22, November.
    3. Afaq Hyder Chohan & Jihad Awad, 2022. "Wind Catchers: An Element of Passive Ventilation in Hot, Arid and Humid Regions, a Comparative Analysis of Their Design and Function," Sustainability, MDPI, vol. 14(17), pages 1-23, September.
    4. Liu, Miaomiao & Nejat, Payam & Cao, Pinlu & Jimenez-Bescos, Carlos & Calautit, John Kaiser, 2024. "A critical review of windcatcher ventilation: Micro-environment, techno-economics, and commercialisation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 191(C).
    5. Marouen Ghoulem & Khaled El Moueddeb & Ezzedine Nehdi & Fangliang Zhong & John Calautit, 2020. "Design of a Passive Downdraught Evaporative Cooling Windcatcher (PDEC-WC) System for Greenhouses in Hot Climates," Energies, MDPI, vol. 13(11), pages 1-23, June.

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