Experimental performance of solar chimney window on school building

Abstract

This paper reports investigation on the natural ventilation of solar chimney window on the school building in Thailand. Both clear glass solar chimney window (CG-SCW) and translucent glass solar chimney window (TG-SCW) were considered. The CG-SCW and TG-SCW composed of different the slat glass on the outer side and the inner side is same glass pane. The slat glasses are clear glass (CG) and translucent glass (TG), and the glass pane is CG. They are openings located at the bottom (room side) and the top (ambient side). The size of openings was 0.0205 m².  The surface area of each unit was about 0.963 m². They were integrated into the southeast facing wall of the small rooms in the school building.  Experimental results were showed that TG-SCW could reduce heat flux by about 3-20 W/m². With TG-SCW, velocity field measurement indicated that the induced airflow rate was about 5-15 m³/hr. However, the proposed configuration of the TG-SCW should be recommended for school building