Persian Wind Towers: Architecture, Cooling Performance And Seismic Behaviour

Persian wind towers, badgirs, are passive building cooling systems that use nature to provide comfort to people in hot-dry regions. They catch fresh air and channel it down to cool the internal spaces. Sometimes they perform as ventilators and conduct the pleasant air from the courtyard on the ground fl oor up to the top of the wind tower. In this paper, construction technology, typology based on location and number of intakes, cooling performance, and seismic behaviour of badgirs are described. Wind towers in Kashan, Central Iran, are studied for their cooling functioning and structural behaviour against earthquakes. Four different heights for the wind towers are considered. The effects of wind tower height, wind orientation and wind velocity on mass fl ow and temperature in wind towers are presented.

[1]  Hossein Ghadiri,et al.  Study of Wind Catchers with square plan : Influence of physical parameters , 2012 .

[2]  E. Bilgen,et al.  Numerical study of solar-wind tower systems for ventilation of dwellings , 2008 .

[3]  M. Hejazi.  Historical buildings of Iran : their architecture and structure , 1997 .

[4]  Mehdi N. Bahadori,et al.  Viability of wind towers in achieving summer comfort in the hot arid regions of the middle east , 1994 .

[5]  Mehdi N. Bahadori,et al.  Passive Cooling Systems in Iranian Architecture , 1978, Renewable Energy.

[6]  Mehrdad Hejazi,et al.  Persian Architectural Heritage Structure , 2014 .

[7]  Mohsen Mazidi,et al.  Experimental investigation of new designs of wind towers , 2008 .

[8]  Mahmood Yaghoubi,et al.  Wind towers: Measurement and performance , 1991 .

[9]  Vali Kalantar,et al.  Numerical simulation of cooling performance of wind tower (Baud-Geer) in hot and arid region , 2009 .

[10]  Mehdi N. Bahadori,et al.  A simplification of weather data to evaluate daily and monthly energy needs of residential buildings , 1986 .

[11]  Mehdi N. Bahadori,et al.  An improved design of wind towers for natural ventilation and passive cooling , 1985 .

[12]  Zahra Ghiabaklou.  PASSIVE EVAPORATIVE COOLING , 2001 .

[13]  Ali A. Badran,et al.  Performance of cool towers under various climates in Jordan , 2003 .

[14]  Angelika Bayer,et al.  Solar Engineering Of Thermal Processes , 2016 .

[15]  M. Hejazi,et al.  Cooling Performance Of Persian Wind Towers , 2012, ARC 2012.