| Abstract [eng] |
At present the world's fastest growing renewable power source, wind energy is the transformation of the winds from kinetic force into mechanical power through a turbine. The mechanical power can be used for such tasks as pumping water or grinding grain, or converted into electricity through a generator for use by homes and businesses. Wind turbine provides an attractive power source as an alternative to fossil fuels because it is abundant, pollution resistance, clean, and produces no harmful emissions. To extract more energy from the wind, need of increase the wind turbine size. However, the Increasing in size has begun to reach a limit in terms of material composition and structural stability. To quell the trend of increasing size in wind power systems alternative wind turbine blade designs are evaluated and investigated to increase power production and efficiency of present size machines. Wind concentrators have been proposed for the low velocity and turbulence flow region because they provide structural and aerodynamic advantages. A computational fluid dynamics (CFD) program was used to model air flow patterns through a prototype wind turbine blades and optimize its performance. |
