5th INTERNATIONAL CONGRESS ON KHAZAR SCIENTIFIC RESEARCH AND INNOVATION
THE EXPERIMENTAL AND NUMERICAL INVESTIGATION OF THE IZMIR SOLAR CHIMNEY MODEL
The solar chimneys consist of a hollow tower standing vertically to the ground, with a collector placed at a certain height above the ground, and a wind turbine inside the tower that generates electricity. Therefore, these systems are also referred to as wind turbines powered by rising airflows. The working principle is based on the heating of the air under the collector by the sun, causing the air to rise, and the rising air then turns the wind turbine blades. The most well-known solar chimney is the Manzanares Solar Chimney in Spain, which was built in 1982 with a nominal power of 50 kW. This study presents the experimental and numerical analysis of a scaled 1:80 model of the Manzanares Solar Chimney, installed on the roof of the Department of Mechanical Engineering at Ege University for experimental purposes. In the constructed model system, the collector efficiency, chimney efficiency, and system efficiency were determined. For the numerical analysis, the ANSYS Fluent software, which uses the finite volume method, was employed. As a result, while the nominal power of the Manzanares Solar Chimney is 50 kW, the experimental power of the 1:80 model was determined to be 0.28 W and the numerical power was 0.26 W.
