Induced Buoyancy In Inclined Solar Chimney For Natural Ventilation

Abstract

A 2-D plane, steady, incompressible, turbulent flow field developed by natural convection inside inclined solar chimney at different inclination angles ranging from (30o to 90o), heat fluxes from (100 W/m² to 500 W/m²) and chimney thickness(0.1, 0.2 m) chimney is investigated numerically. It is found that maximum air temperature and maximum volume flow rate was 101.7oC, 306.3 m³/h respectively at heat flux,500 W/m2; inclination angle; 90o and chimney thickness; 0.2m. Maximum outlet air velocity was 0.488 m/s at chimney thickness; 0.1m, heat flux; 500 W/m2; and inclination angle; 90o. Increase in heat flux, inclination angle and chimney thickness leads to increasing of volume flow rate. Increase in chimney cross-sectional area leads to decrease in air velocity and increase in volume flow rate

Abstract by the authors, reproduced under the CC BY 4.0 licence. Original publication via the link below.