Windcatcher

A windcatcher (Persian: بادگیر‎‎ bâdgir: bâd "wind" + gir "catcher") is a traditional Persian architectural element to create natural ventilation in buildings. Windcatchers come in various designs: uni-directional, bi-directional, and multi-directional. Windcatchers remain present in many countries and can be found in traditional Persian-influenced architecture throughout the Middle East, including in the small Arab states of the Persian Gulf (mostly Bahrain and Dubai), Pakistan, and Afghanistan.

Background

Central Iran shows large diurnal temperature variation with an arid climate. Most buildings are constructed from thick ceramic with high insulation values. Towns centered on desert oases tend to be packed very closely together with high walls and ceilings, maximizing shade at ground level. The heat of direct sunlight is minimized with small windows that face away from the sun.

The windcatcher's effectiveness had led to its routine use as a refrigerating device in Persian architecture. Many traditional water reservoirs (ab anbars) are built with windcatchers that are capable of storing water at near freezing temperatures during summer months. The evaporative cooling effect is strongest in the driest climates, such as on the Iranian plateau, leading to the ubiquitous use of windcatchers in drier areas such as Yazd, Kerman, Kashan, Sirjan, Nain, and Bam.

Wind Towers

The Wind Towers is a complex of two towers in Jumeirah Lake Towers Free Zone in Dubai, United Arab Emirates. The two towers, Wind Tower 1 and Wind Tower 2, both consist of 38 floors but are 139 m (454 ft) and 137 m (448 ft) respectively. The towers are under construction and are expected to be completed in 2016

See also

Architecture of wind tower inspired from windcatcher minitowers, Yazd, Iran.

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