Akademik Veri Yönetim Sistemi
15th INTERNATIONAL CONFERENCE ON ENGINEERING & NATURALSCIENCES, Muş, Türkiye, 4 - 06 Mart 2023, ss.230-236
Solar energy systems are indispensable for a sustainable and clean environment. Especially with the increasing human population, the increase in energy consumption has reached a dangerous level in terms of the use of fossil fuels. Solar chimney power plants are gaining popularity due to low maintenance costs and CO2 emissions. The pressure difference created by its high chimney creates a driving force for electricity generation. In addition, it increases the kinetic energy of the system air under it by absorbing the solar radiation
falling on it with its large collector. System air with increased kinetic energy generates electricity through the turbine. This study aims to interpret the effect of the change in collector height on the system air concerning the first prototype Manzanares power plant. A 3D CFD model is created and verified with experimental and literature data. All analyzes are obtained under continuous conditions at a constant ambient temperature of 300 K and a solar irradiance of 1000 W/m2. It is seen that the ideal collector height of the pilot plant, which has a height of 1.85 m, should be less, and the system’s performance increases at low collector heights. In addition, it is determined that there is a significant increase in the system’s flow rate with the rise in the collector height. It is determined that the maximum air flow rate is higher at low collector heights due to the decrease in the air flow rate even though the total energy entering the system is constant.