Improving the Powerful Behavior of an Experimental Model of Savonius Turbine (S-Rotor) with Coupled Aerodynamic Additional Blades

Abstract

The proposed experimental model brings an improvement in the start of turbine rotation and torque uniformity in load. Constructively, the original blades of the turbine have gap and overlay. Additional blades are placed at 90° from the classic layout of the blades at the Savonius turbine and are attached to the original blades. The model was tested on the wind tunnel at low wind speeds (<4.5 m/s). The results confirm the validity of the concept, without significantly increasing the yield of the experimental model.