Natural down-draft evaporative coolers are device's recently developed at the University of Arizona's Environmental Research Laboratory (ERL). These towers-like devices are equipped with wetted pads and sprays at the top which provide cool air bygravity flow. In arid regions, these devices can be used for cooling residential and commercial buildings, as well as outdoor private and public areas. This paper focuses on some recent developments and applications of the towers in arid regionsinternationally and nationally. The paper also demonstrates CoolT, a computer program developed by the author that has been used for cool tower sizing and performance prediction. Recent examples include the Botswana Technology Center, a Headquartersoffice building in South Africa currently under construction. This building is cooled by a series of cool towers, and the MOMRA "Environmental Rowdah" project in Riyadh, Saudi Arabia another recently built project which demonstrates the use of cool towers for cooling outdoor spaces.
展开▼
