8th DAY – DUBAI – AL FAHAIDI FORT – WINDCATCHER

by Antonio Gil November. 13, 2015 2689 views

One of the most common uses of the windcatcher is to cool the inside of the dwelling; it is often used in combination with courtyards and domes as an overall ventilation and heat-management strategy. It is essentially a tall, capped tower with one face open at the top. This open side faces the prevailing wind, thus “catching” it, and brings it down the tower into the heart of the building to maintain air flow, thus cooling the building interior. It does not necessarily cool the air itself, but rather relies on the rate of airflow to provide a cooling effect. Windcatchers have been employed in this manner for thousands of years.
In a windless environment or waterless house, a windcatcher functions as a solar chimney. It creates a pressure gradient which allows hot air, which is less dense, to travel upwards and escape out the top. This is also compounded significantly by the diurnal cycle, trapping cool air below. The temperature in such an environment cannot drop below the nightly low temperature.
When coupled with thick adobe that exhibits good resistance against heat transmission qualities, the windcatcher is able to chill lower-level spaces in mosques and houses (e.g. shabestans) in the middle of the day to frigid temperatures.

Windcatcher is the square shaped tower in the foreground.

♫♫ DUBAI SONGS♫♫ [youtube.com]

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Giancarlo Fosci 3 years, 12 months ago

always very interesting

3 years, 12 months ago Edited
Jay Boggess 3 years, 12 months ago

Clever invention! Where there's a need, there's a solution. Wonderful camera work & fascinating info!

3 years, 12 months ago Edited
Bill Baird 4 years ago

Interesting !

4 years ago Edited
Evalizette Hansson 4 years ago

Great use of focus! Number 5 is awesome :)!

4 years ago Edited
Dan Ravasio 4 years ago

What a fascinating idea.... very cool. (no pun intended)

4 years ago Edited
Sadhya Rippon 4 years ago

Fascinating. I remember seeing some of these typical boats in (I think) Kuwait. Such beautiful craft.

4 years ago Edited
Olga Helys 4 years ago

Great report

4 years ago Edited
Gillian Parsons 4 years ago

Love the boast scene and yes I have learnt something as well.

4 years ago Edited
Marilyn Grimble 4 years ago

Today I learn something new - I have never heard of these wind catchers before!

4 years ago Edited
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