ABSTRACT
In this study, Numerical and Experimental analysis of flow inside a divergent Solar Chimney is carried out. A solar chimney is a power generation system that uses the greenhouse effect to generate greener electricity. Electrical energy will be developed through this system by converting the thermal energy obtained from solar radiation. In order to successfully implement Solar Chimney Power Plant (SCPP) in highly urbanized places, this paper aims to provide a databas. In this study, the performance of theSCPP with different collector configurations with a constant chimney divergence angle of 2 degrees is analyzed. Numerical simulation and experimental studies are performed for the Solar Chimney Power Plant with 1:1.22 (chimney length to collector diameter ratio) is taken for chimney and convergent, half convergent, divergent, and half divergent considered for collector configurations. Experimentations are carried out in an open atmosphere, where a hot wire anemometer and thermocouples measure velocity and temperature. A partially convergent collector with a 10-degree divergence configuration performed better than the other three models based on the computational and experimental results. The maximum velocity obtained for this model is 1.5 m/s with a temperature rise of 14K.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Nomenclature
ρ | = | Density (kg/m3) |
A | = | Area |
V | = | Velocity |
u | = | Initial velocity |
t | = | Time |
et | = | Heat transfer |
= | :Coefficient of viscosity | |
T0 | = | Reference buoyancy temperature |
g | = | Acceleration due to gravity |
= | Expansion rate | |
= | Ambient density | |
Pout | = | Power output |
= | Temperature difference | |
Ta | = | Ambient Temperature |
= | Body force | |
S | = | Entropy |
SCPP | = | Solar Chimney Power Plant |
FCFD | = | Full Convergent Full Divergent |
FDFD | = | Full Divergent Full Divergent |
HCFD | = | Half Convergent Full Divergent |
HDFD | = | Half Divergent Full Divergent |
= | Mass flow rate | |
SUPP | = | Solar Updraft Power Plant |