Review on Wind Lens and an Empirical Model for Power Enhancement

Wind power generation is proportional to the third power of wind speed. The speeds at the blades are further increased by using Wind Lenses. A wind lens turbine can generate 2-5 times, the power of an existing wind turbine for a given rotor diameter and the incoming wind speed. This paper has two parts the first part focusing on a review of wind lens and the second part is focusing on optimizing the wind lens parameters, including length and the tapering angle of the wind lens to get the maximum efficiency for a given wind turbine. A wind lens was simulated inside a controlled volume by using an open source numerical Computer fluid dynamics (CFD) software to get velocities at different parameters and an empirical model was developed using linear factor analysis by using the wind lens simulated inside a controlled volume.