TY  - JOUR
TI  - Impact of Tower Diameter on Power Output in Solar Chimney Power Plants
AB  - Solar chimney power plants (SCPPs) are very attractive solar energy systems with low maintenance costs and zero CO2 emissions. After its first application, the Manzanares facility, numerous studies were conducted related to the impact of geometric and climatic parameters on the system. In this study, the impact of chimney diameter change on the system, which has not been adequately examined in literature, has been investigated in detail. In the 3D CFD model created with ANSYS commercial software, simulations have been conducted by using the solar ray tracing algorithm and DO (discrete ordinates) model along with RNG k-ε turbulence model. By referencing the Manzanares facility for the other geometric parameters, system behaviour has been assessed by changing the chimney diameter between 4.865-64.866 m. The impact of the change in tower diameter on the pressure and velocity distribution in the system has been analysed first in comparison with the reference situation. In addition, the influence of diameter change on the power output, mass flow rate, efficiency of the system and the average pressure difference at the turbine position has been evaluated. It has been concluded that the chimney diameter value that gives maximum performance for the Manzanares pilot plant is 24.325 m. When the chimney diameter has been configured as 24.325 m, it has been seen that the power output will improve by 85.9% compared to the reference situation and will be 101 kW. Similarly, the efficiency rises by 94% in comparison with the reference case, and becomes 0.194%.
AU  - Cuce, Pinar Mert
AU  - Cuce, Erdem
AU  - SEN, HARUN
DO  - 10.30855/gmbd.2021.03.08
PY  - 2021
JO  - Gazi Mühendislik Bilimleri Dergisi
VL  - 7
IS  - 3
SN  - 2149-4916
SP  - 253
EP  - 263
DB  - TRDizin
UR  - http://search/yayin/detay/1118681
ER  -