Performance analysis of Savonius hydrokinetic turbine using ‘C’ shaped Deflector

ABSTRACT

Nonrenewable energy sources are limited and harmful to the environment. The use of a Savonius rotor to harness one of the renewable energy sources, hydrokinetic energy, is investigated in this study. The power output of the Savonius rotor is low; therefore, a ‘C’ shaped deflector was employed on the rotor’s upstream side to boost power output. The experimental analysis was done to find the best position for the ‘C’ shaped deflector in this work. The experiments were conducted in two stages: keeping the X-coordinate fixed and varying Y-coordinates. After getting maximum power output for Y-coordinate, the X-coordinate was optimized. The results show an increase in rotor power output by 23% and a decrease in the power coefficient for the best deflector position.

KEYWORDS:

• Renewable energy
• hydrokinetic turbine
• savonius rotor
• deflector
• green energy

Acknowledgments

Authors gratefully acknowledge the Science and Engineering Research Board (SERB), Department of Science and Technology, Delhi, India, for funding through core research grants primarily to finance computational and experimental resources.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

All data, models, and code generated or used during the study appear in the submitted article.

Additional information

Funding

This work was supported by the Science and Engineering Research Board [CRG/2020/005420].