Solar chimney
OverviewDescriptionSolar chimney and sustainable architecturePrecedent Study: The Environmental BuildingPassive down-draft cool towerSee alsoSourcesExternal links
In its simplest form, the solar chimney consists of a black-painted chimney. During the day solar energy heats the chimney and the air within it, creating an updraft of air in the chimney. The suction created at the chimney''s base can be used to ventilate and cool the building below. In most parts of the world it is easier to harness wind power for such ventilation as with a windcatcher, but on hot windless days a solar chimney can provide ventilation where otherwise there would be none.