Investigation of efficiency of production electricty in solar chimney power plants using different wing models

Solar Chimney Power Plants (SCPP) consist of three main components: solar collector, chimney and turbine. Air under the collector is heated by the greenhouse effect, the air density is reduced and the air flows toward the chimney located at the center of the collector. Thus, electricity is produced at the turbine mounted at the entrance of the chimney.In this study, measurements have been carried out on the Solar Chimney Power Plant (SCPP) system built at Adiyaman University Campus area, with specifications 15 m in height, 0.8 m in diameter of chimney, 0.004 m thick transparent glass floor and a collector having maximum of 27 m in diameter. For this purpose, air flow rate and temperature in the chimney, ambient temperature, ambient air velocity, surface temperature of collector, air flow rate and temperature under the collector, revolutions per minute (RPM) of the turbine with different diameter and solar radiation values at Adiyaman are measured at certain times of the day.It is found that solar radiation, environmental temperature, height and diameter of chimney, solar radiation absorption rate of ground under the collector are the parameters that affect the efficiency and performance of the system. It is also observed that temperature and air velocity at the point where the turbine assembly is located are maximum. It is concluded that Solar Chimney Power Plant (SCPP) can be considered as alternative energy sources for Adiyaman.