A Simple Theory and Performance Prediction for a Shrouded Wind Turbine with a Brimmed Diffuser

We developed a new wind turbine system that consists of diffuser shroud with broad-ring brim at the exit periphery and inside it. The shrouded brimmed diffuser, which we called “wind lens turbine” (WLT), has demonstrated power augmentation by factor about 2–5 compared bare for given diameter speed. increase in output depends on shape length height. However, simple theory presented this paper argues only two performance coefficients are needed to predict WLT. back pressure coefficient recovery diffuser. theoretically showed was particularly important Finally, evaluated experimental results. results good agreement each other.