Passive Air Conditioning

Keeping cool on a hot summer day takes a whole lot of electricity to work the air conditioner, but researchers from the Malaviya National Institute of Technology in India could provide the world with a greener solution thanks to a natural, passive method for keeping indoor environments cool. This system will bring together a wind tower and solar chimney as part of the building’s architecture, where the former provides a draft of air cooled by the stones that flows through windows upward through the building. This draft will then push the hotter inside air upwards, where it then escapes via the chimney’s thermally conducting panels. This solution claims to “lower the inside temperature by about 5 degrees C (9 degrees F)”, which goes a long way in keeping a building or home cool.