Improved Design of Diffuser Augmented Wind Turbine Blades Using Solid Works and EES

Abstract

In recent years ,the realization that the world's  fossil fuel supply is limited ,along with increasing environmental concerns, has led to the exploration of the increasing demand for energy. Wind energy is a renewable energy source .this research focuses on the horizontal axis wind turbine (HAWT).

This research presents an aerodynamic optimization analysis of horizontal axis wind turbines based on the BEM theory of blade element momentum . The Naca0012 wing was used to obtain the geometry of the turbine wings , and the root radius Rhub  and turbine radius Rtip that achieve the best wing performance were determined, the analysis method relied on the Qblade software.

this research addressed the problem of increasing turbine efficiency in the low wind speed range was addressed through the concept of diffuser augmented wind turbines (DAWTs) . the diffuser shape was designed in solid works ,flow simulation was performed , and a software model was created to calculate the energy extracted from the wind using EES. The results showed that DAWTs achieved a quantum leap in increasing energy production and exceeding the Betz limit.