This paper presents a review on the performance of Savonius wind turbines. This type of turbine is unusual and its application for obtaining useful energy from air stream is an alternative to the use of conventional wind turbines. Simple construction, high start up and full operation moment, wind acceptance from any direction, low noise and angular velocity in operation, reducing wear on moving parts, are some advantages of using this type of machine. Over the years, numerous adaptations for this device were proposed. The variety of possible configurations of the rotor is another advantage in using such machine. Each different arrangement of Savonius rotor affects its performance. Savonius rotor performance is affected by operational conditions, geometric and air flow parameters. The range of reported values for maximum averaged power coefficient includes values around 0.05–0.30 for most settings. Performance gains of up to 50% for tip speed ratio of maximum averaged power coefficient are also reported with the use of stators. Present article aims to gather relevant information about Savonius turbines, bringing a discussion about their performance. It is intended to provide useful knowledge for future studies.

A review on the performance of Savonius wind turbines

Optimum design configuration of Savonius rotor through wind tunnel experiments

On the performance analysis of Savonius rotor with twisted blades

Influence of the deflector plate on the performance of modified Savonius water turbine

A double-step Savonius rotor for local production of electricity: a design study

https://wiki.duke.edu/download/attachments/13373206/loughborough%20report.pdf

A.J. Alexander

Papers

Wind tunnel tests on a savonius rotor

The effect of vertical velocity gradients on the performance of savonius rotors