Performance of Combined Water Turbine Darrieus-Savonius with Two Stage Savonius Buckets and Single Deflector

Sahim, Kaprawi and Dyos, Santoso and Riman, Sipahutar (2015) Performance of Combined Water Turbine Darrieus-Savonius with Two Stage Savonius Buckets and Single Deflector. INTERNATIONAL JOURNAL of RENEWABLE ENERGY RESEARCH, 5 (1). pp. 217-221. ISSN 1309-0127

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    Abstract

    The objective of this study is to show the effect of single deflector plate on the performance of combined Darrieus-Savonius water turbine. In order to overcome the disadvantages of low torque of solo Darrieus turbine, a plate deflector mounted in front of returning Savonius bucket of combined water turbine composing of Darrieus and Savonius rotor has been proposed in this study. Some configurations of combined turbines with two stage Savonius rotors were experimentally tested in a river of constant velocity 0.8 m/s. The angle of deflector with respect to current flow influences the turbine perfomanace characteristics. The torque and the power coefficient of combined turbine with deflector increase for Savonius rotor mounted on the outside of Darrieus rotor. The optimum deflector angle of 30o gives a better performance of combined turbine.

    Item Type: Article
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Faculty of Engineering > Department of Mechanical Engineering
    Depositing User: Prof. Dr. Ir. Kaprawi Sahim
    Date Deposited: 20 Apr 2015 09:28
    Last Modified: 20 Apr 2015 09:28
    URI: http://eprints.unsri.ac.id/id/eprint/5351

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