112
K. V. S. Teja et al.
Fig. 7.14 Comparison
between power output
generated on 21st June and
21st December 11:00 to
12:00 for case 2 when
chimney height is varied
100
150
200
250
300
50
100
150
200
250
300
Power output (kW)
Chimney height (m)
21st June
21st December
Fig. 7.15 Comparison
between power output
generated on 21st June and
21st December 11:00 to
12:00 for case 2 when
collector radius is varied
100
150
200
250
300
0
100
200
300
400
500
600
700
Power output (kW)
Collector radius (m)
21st June
21st December
7.4 Conclusions
Mathematical modelling of a hypothetical solar updraft tower with dimensions identical to the prototype located in Manzanares, Spain was done. Numerical analysis
on various parameters like temperature, velocity, power output, efficiency was performed. From the above analysis, it can be inferred that
1. For case 1, no losses through the top surface of the collector were accounted.
The power output for this case was found to be around 75 kW when averaged
from sunrise to sunset for all days of the year. For the month of June, the average
power output was around 90 kW.