Investigations on the Effect of Radius Rotor in Combined Darrieus-Savonius Wind Turbine
Autor: | Kaprawi Sahim, Dyos Santoso, Dewi Puspitasari |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: | |
Zdroj: | International Journal of Rotating Machinery, Vol 2018 (2018) |
Druh dokumentu: | article |
ISSN: | 1023-621X 1542-3034 |
DOI: | 10.1155/2018/3568542 |
Popis: | Renewable sources of energy, abundant in availability, are needed to be exploited with adaptable technology. For wind energy, the wind turbine is very well adapted to generate electricity. Among the different typologies, small scale Vertical Axis Wind Turbines (VAWT) present the greatest potential for off-grid power generation at low wind speeds. The combined Darrieus-Savonius wind turbine is intended to enhance the performance of the Darrieus rotor in low speed. In combined turbine, the Savonius buckets are always attached at the rotor shaft and the Darrieus blades are installed far from the shaft which have arm attaching to the shaft. A simple combined turbine offers two rotors on the same shaft. The combined turbine that consists of two Darrieus and Savonius blades was tested in wind tunnel test section with constant wind velocity and its performance was assessed in terms of power and torque coefficients. The study gives the effect of the radius ratio between Savonius and Darrieus rotor on the performance of the turbine. The results show that there is a significant influence on the turbine performance if the radius ratio was changed. |
Databáze: | Directory of Open Access Journals |
Externí odkaz: |