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Investigation of Airflow Patterns in a New Design of Wind Tower with a Wetted Surface

Author

Listed:
  • Madjid Soltani

    (Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, N2L 3G1, Canada)

  • Alireza Dehghani-Sanij

    (Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, N2L 3G1, Canada)

  • Ahmad Sayadnia
  • Farshad M. Kashkooli
  • Kobra Gharali
  • SeyedBijan Mahbaz

    (Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, N2L 3G1, Canada)

  • Maurice B. Dusseault

    (Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, N2L 3G1, Canada)

Abstract

Passive cooling systems, such as wind towers, can help to reduce energy consumption in buildings and at the same time reduce greenhouse gas (GHG) emissions. Wind towers can naturally ventilate buildings and also can create enhanced thermal comfort for occupants during the warm months. This study proposes a modern wind tower design with a moistened pad. The new design includes a fixed column, a rotating and movable head, an air opening with a screen, and two windows at the end of the column. The wind tower can be installed on roof-tops to take advantage of ambient airflow. The wind tower’s head can be controlled manually or automatically to capture optimum wind velocity based on desired thermal condition. To maximize its performance, a small pump was considered to circulate and spray water on an evaporative cooling pad. A computational fluid dynamics (CFD) simulation of airflow around and inside the proposed wind tower is conducted to analyze the ventilation performance of this new design of wind tower. Thereby, the velocity, total pressure, and pressure coefficient distributions around and within the wind tower for different wind velocities are examined. The simulation results illustrate that the new wind tower design with a moistened pad can be a reasonable solution to improve naturally the thermal comfort of buildings in hot and dry climates.

Suggested Citation

  • Madjid Soltani & Alireza Dehghani-Sanij & Ahmad Sayadnia & Farshad M. Kashkooli & Kobra Gharali & SeyedBijan Mahbaz & Maurice B. Dusseault, 2018. "Investigation of Airflow Patterns in a New Design of Wind Tower with a Wetted Surface," Energies, MDPI, vol. 11(5), pages 1-23, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1100-:d:143887
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    References listed on IDEAS

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    Cited by:

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    2. Carson Kinney & Alireza Dehghani-Sanij & SeyedBijan Mahbaz & Maurice B. Dusseault & Jatin S. Nathwani & Roydon A. Fraser, 2019. "Geothermal Energy for Sustainable Food Production in Canada’s Remote Northern Communities," Energies, MDPI, vol. 12(21), pages 1-25, October.
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    4. Dehghani-Sanij, A.R. & Tharumalingam, E. & Dusseault, M.B. & Fraser, R., 2019. "Study of energy storage systems and environmental challenges of batteries," Renewable and Sustainable Energy Reviews, Elsevier, vol. 104(C), pages 192-208.
    5. Farshad Moradi Kashkooli & Mostafa Sefidgar & Madjid Soltani & Shahab Anbari & Seyed-Amir Shahandashti & Bahram Zargar, 2021. "Numerical Assessment of an Air Cleaner Device under Different Working Conditions in an Indoor Environment," Sustainability, MDPI, vol. 13(1), pages 1-22, January.
    6. Hasan Alimoradi & Madjid Soltani & Pooriya Shahali & Farshad Moradi Kashkooli & Razieh Larizadeh & Kaamran Raahemifar & Mohammad Adibi & Behzad Ghasemi, 2020. "Experimental Investigation on Improvement of Wet Cooling Tower Efficiency with Diverse Packing Compaction Using ANN-PSO Algorithm," Energies, MDPI, vol. 14(1), pages 1-19, December.
    7. Mohammad Souri & Farshad Moradi Kashkooli & Madjid Soltani & Kaamran Raahemifar, 2021. "Effect of Upstream Side Flow of Wind Turbine on Aerodynamic Noise: Simulation Using Open-Loop Vibration in the Rod in Rod-Airfoil Configuration," Energies, MDPI, vol. 14(4), pages 1-24, February.
    8. Grzegorz Czerwiński & Jerzy Wołoszyn, 2021. "Optimization of Air Cooling System Using Adjoint Solver Technique," Energies, MDPI, vol. 14(13), pages 1-24, June.
    9. Mohan Liu & Lei Chen & Kaijun Jiang & Xiaohui Zhou & Zongyang Zhang & Hanyu Zhou & Weijia Wang & Lijun Yang & Yuguang Niu, 2021. "Investigation of Thermo-Flow Characteristics of Natural Draft Dry Cooling Systems Designed with Only One Tower in 2 × 660 MW Power Plants," Energies, MDPI, vol. 14(5), pages 1-18, February.
    10. Heidari, Sahar & Poshtiri, Amin Haghighi & Gilvaei, Zoleikha Moghtader, 2024. "Enhancing thermal comfort and natural ventilation in residential buildings: A design and assessment of an integrated system with horizontal windcatcher and evaporative cooling channels," Energy, Elsevier, vol. 289(C).
    11. Margherita Ferrucci & Fabio Peron, 2018. "Ancient Use of Natural Geothermal Resources: Analysis of Natural Cooling of 16th Century Villas in Costozza (Italy) as a Reference for Modern Buildings," Sustainability, MDPI, vol. 10(12), pages 1-20, November.
    12. 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.
    13. Soltani, M. & Moradi Kashkooli, Farshad & Alian Fini, Mehdi & Gharapetian, Derrick & Nathwani, Jatin & Dusseault, Maurice B., 2022. "A review of nanotechnology fluid applications in geothermal energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).

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