Wind catcher is an structure that could be built on the roof of the buildings in order to provide natural ventilation and make inside of the building cooler with out using energy. In the past people in arid areas did not have electricity and they used wind catchers to make their house cooler. Today,in order to reduce global warming and cost of electricity wind catchers are used in buildings. The general structure of modern and old wind catchers are same. Both of them catch wind from opening. Inside the wind catcher will be divided to 4 sections . According to Ji and Su and Khan (2012)wind catchers catch wind from different sides and one section that is in the wind side,brings it inside the building and other one on the opposite side releases stale air because of the pressure.They also claim that modern wind catchers usually have a manual or automatic window inside the building in order to control air volume and to close the wind catcher in winter. Old wind catchers bring wind inside a room that usually have small pool to make water cooler with evaporation.These rooms usually have several doors to different part of building. When one part needs cool air the door will be opened (Kazemi and Dehghan 2012). Old wind catchers have made from mud and brick but modern ones are mostly made from metal and could be designed in order to be set with building appearance.
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- Ji,Z Su,Y Khan,N 2012.Performance Evaluation and Energy Saving Potential of
Windcatcher Natural Ventilation Systems in China,International Journal of Architecture, Engineering and Construction ,Vol.1, No. 2, pp.84-95
- Kazemi,m Dehghan,A 2012,Visualized flow structure around and inside of one-sided wind-catchers,Energy and BuildingsVolume 55, Pages 545–552.
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