Friday, June 8, 2012

Chill Out In The Land Of Deserts - Ancient Methods of Cooling Down

The ancient way of cooling the building in India was by digging a pond into the ground and surrounding the ground with walls to evaporate the water. This method was developed more than 1,500 years ago. This method was used mainly to escape the harsh desert heat in Rajasthan area by a series of water bodies with descending steps right into the bowel of the earth. The natural evaporation of the water into the spaces kept the entire building cool even without the use of power consumption. These were popularly knows as baolis.


Such a simple but clever technology is now being studied and used by modern architects to cool buildings. Many ancient Indian buildings particularly in Rajasthan were given the Jaali design not so much for decoration but for cooling the interior of the buildings. This is a very passive form of cooling device and worked efficiently in ancient times. The major palaces in Rajasthan have all been built with the Jaali design system which accounts for a cooler temperature within.


Modern architects are now drawing upon this device in building to allow for natural cooling within the interior of a building. The Jaali design is created by keeping a four feet space between the outer and inner walls for natural air circulation and cooling effect. The Jaali allows natural daylight to be diffused through for illumination and amply shades the interior spaces from overheating. The Jaali or latticed screens gave a decorative effect while filtering light into the palaces while being an efficient outer cooling skin for the entire building.
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