Patel, Sandeep K. and Prasad, Deepak D. and Ahmed, Mohammed R. (2014) Computational studies on the effect of geometric parameters on the performance of a solar chimney power plant. Energy Conversion and Management, 77 . pp. 424-431. ISSN 0196-8904
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Abstract
A solar chimney power plant (SCPP) is a renewable-energy power plant that transforms solar energy into
electricity. The SCPP consists of three essential elements – solar air collector, chimney tower, and wind
turbine(s). The present work is aimed at optimizing the geometry of the major components of the SCPP
using a computational fluid dynamics (CFD) software ANSYS-CFX to study and improve the flow characteristics
inside the SCPP. The overall chimney height and the collector diameter of the SCPP were kept
constant at 10 m and 8 m respectively. The collector inlet opening was varied from 0.05 m to 0.2 m.
The collector outlet diameter was also varied from 0.6 m to 1 m. These modified collectors were tested
with chimneys of different divergence angles (0�–3�) and also different chimney inlet openings of
0.6 m to 1 m. The diameter of the chimney was also varied from 0.25 m to 0.3 m. Based on the CFX computational
results, the best configuration was achieved using the chimney with a divergence angle of 2�
and chimney diameter of 0.25 m together with the collector opening of 0.05 m and collector outlet diameter
of 1 m. The temperature inside the collector is higher for the lower opening resulting in a higher flow
rate and power.
| Item Type: | Journal Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics |
| Depositing User: | Deepak Prasad |
| Date Deposited: | 09 Mar 2014 23:31 |
| Last Modified: | 05 Jan 2018 02:14 |
| URI: | https://repository.usp.ac.fj/id/eprint/7187 |
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