Abstract
The solar chimney is a simple and practical tool th at is applied to enhance space natural ventilation. This paper reports an ex perimental work to investigate effects of number of solar chimneys, ch imney height, air gap width, and chimney orientation on natural ventilation in a space. Temperatures and velocities profiles were recorded through both chim ney channel and room connected to channel under different parametric con ditions. The results show that improvement in natural ventilation could be ac hieved using multi solar chimney. Also, using one, two, or three chimneys co uld reduce the room center temperature by 6%, 10%, and 12 % respectively, and using two and three chimneys instead of one chimney increased v entilating flow rate to 13% and 33% respectively.
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