Solar chimney
Solar chimney
Born in Middle East, North Africa.
How it works
A dark, sun-exposed vertical flue heats the air inside it; that air rises and escapes, creating suction that pulls fresh, shaded-side air through the rooms below. Pure stack effect, powered by the sun.
In a modern home
A glazed, dark-painted thermal chimney on the hot façade to drive passive cross-ventilation without fans, effective in apartment stairwell cores.
What it answers
Source
N. K. Bansal et al., solar-chimney ventilation studies (Building & Environment); principle formalised in bioclimatic design.
Follow the threads
Kyoto townhouseshares poor ventilation, no cross breeze, catch & move air→Shaded draft loggiashares poor ventilation, no cross breeze, catch & move air→Windcatchershares poor ventilation, no cross breeze, catch & move air→Wind-scoop & roof venting (humid variant)shares poor ventilation, no cross breeze, catch & move air→Courtyard stack ventilationshares poor ventilation, catch & move air, breath→Perforated stone screenshares no cross breeze, catch & move air, breath→