Design and Performance Test of Savonius Tidal Current Turbine with CWC

Design and testing of a contra-rotating tidal current turbine

A contra-rotating marine current turbine has a number of attractive features: near-zero reactive torque on the support structure, near-zero swirl in the wake, and high relative interrotor rotational speeds. Modified blade element modelling theory has been used to design and predict the characteristics of such a turbine, and a model turbine and test rig have been constructed. Tests in a towing t...

Study of NACA 0015 for Diffuser Design in Tidal Current Turbine Applications (TECHNICAL NOTE)

Tidal energy is the most foreseeable form of renewable energy. Tidal energy can be harnessed by tidal barrage, tidal fence and tidal current technologies. Present efforts are focused on diffuser augmented tidal turbines that exploit the kinetic energy of the tidal currents. The power output by a tidal turbine is directly proportional to the cube of velocity of incoming fluid flow. Thus, even a ...

Design and Optimization of Tidal turbine Airfoil

Physical testing of performance characteristics of a novel drag-driven vertical axis tidal stream turbine; with comparisons to a conventional Savonius

An experimental study of the performance and optimisation of a prototype novel drag-driven vertical axis tidal stream turbine is presented. The drag turbine has several unique advantages, including simple blade design, deployable in shallow waters and potential denser array spacing. Performance optimisation was conducted in the hydraulics flume at Cardiff University (CU), where the turbine reac...

Application of guide blades for improving performance of savonius wind turbine

Application of guide blades is an appropriate method for improving aerodynamic performance of savonius wind turbine. Guide blades gather the wind energy around the turbine and guide them into the concave side of savonius rotor. In this paper, numerical investigation is conducted for evaluating effect of the guide blades on the performance of savonius turbine. Aerodynamic performance of the turb...