EFFECT OF SPIRAL RIB ON SOLAR CHIMNEY COLLECTOR PERFORMANCE

Abstract

AbstractThe increased demand for renewable energy calls for increased developments to thetechniques of production for such energy. This paper presents a numerical study of conicalcollector solar chimney with specific dimensions. A glass spiral of square cross section wasfitted to the collector to investigate its effects on the velocity distribution of air. Results showthat the spiral enhances velocity distribution by (11.57% and 12.82%) corresponding to theinlet air velocity of (Re=99945 and 499729) respectively. This enhancement will reflect tothe instantaneous electric power which can be produced by such instrument. Theinvestigation was carried out using CFD program FlUENT14.5, K-ɛ model.