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Energies 2017, 10(7), 845;

Performance Evaluation of a Modular Design of Wind Tower with Wetted Surfaces

Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, QC H3G 1M8, Canada
School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
Department of Mechanical Engineering, Memorial University of Newfoundland, St. John’s, NL A1B 3X5, Canada
Hydraulic Machinery Research Institute, Department of Mechanical Engineering, University of Tehran, Tehran, Iran
Author to whom correspondence should be addressed.
Received: 20 May 2017 / Revised: 20 June 2017 / Accepted: 21 June 2017 / Published: 25 June 2017
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Wind towers or wind catchers, as passive cooling systems, can provide natural ventilation in buildings located in hot, arid regions. These natural cooling systems can provide thermal comfort for the building inhabitants throughout the warm months. In this paper, a modular design of a wind tower is introduced. The design, called a modular wind tower with wetted surfaces, was investigated experimentally and analytically. To determine the performance of the wind tower, air temperature, relative humidity (RH) and air velocity were measured at different points. Measurements were carried out when the wind speed was zero. The experimental results were compared with the analytical ones. The results illustrated that the modular wind tower can decrease the air temperature significantly and increase the relative humidity of airflow into the building. The average differences for air temperature and air relative humidity between ambient air and air exiting from the wind tower were approximately 10 °C and 40%, respectively. The main advantage of the proposed wind tower is that it is a modular design that can reduce the cost of wind tower construction. View Full-Text
Keywords: wind tower; passive cooling systems; experimental measurements; analytical method wind tower; passive cooling systems; experimental measurements; analytical method

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Khani, S.M.; Bahadori, M.N.; Dehghani-Sanij, A.; Nourbakhsh, A. Performance Evaluation of a Modular Design of Wind Tower with Wetted Surfaces. Energies 2017, 10, 845.

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