Paper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.
Computational Fluid Dynamics (CFD) was employed for investigating
Solar Chimney Power Plants (SCPP). The effect of
the geometric dimensions on the fluid dynamics and heat transfer
was investigated. The thermal efficiency of the collector was
found to improve with increasing scale, due to an increase of
the heat transfer coefficient. The spread in relevant Reynolds
numbers for the collector and chimney was four orders of magnitude
from the smallest to the largest scale. Parametric studies
were also performed to determine the effect of the distance of
the collector from the ground on the power output. An optimum
distance was determined for two different scales.