Version 1
: Received: 25 August 2023 / Approved: 28 August 2023 / Online: 29 August 2023 (03:52:15 CEST)
How to cite:
Karimi, O.; Kharati Koopaee, M.; Tavakolpour-Saleh, A.R.; Hosseini, S.E. Investigating Overlap Ratio Effect on Performance of a Modified Savonius Wind Turbine: An Experimental Study. Preprints2023, 2023081853. https://doi.org/10.20944/preprints202308.1853.v1
Karimi, O.; Kharati Koopaee, M.; Tavakolpour-Saleh, A.R.; Hosseini, S.E. Investigating Overlap Ratio Effect on Performance of a Modified Savonius Wind Turbine: An Experimental Study. Preprints 2023, 2023081853. https://doi.org/10.20944/preprints202308.1853.v1
Karimi, O.; Kharati Koopaee, M.; Tavakolpour-Saleh, A.R.; Hosseini, S.E. Investigating Overlap Ratio Effect on Performance of a Modified Savonius Wind Turbine: An Experimental Study. Preprints2023, 2023081853. https://doi.org/10.20944/preprints202308.1853.v1
APA Style
Karimi, O., Kharati Koopaee, M., Tavakolpour-Saleh, A.R., & Hosseini, S.E. (2023). Investigating Overlap Ratio Effect on Performance of a Modified Savonius Wind Turbine: An Experimental Study. Preprints. https://doi.org/10.20944/preprints202308.1853.v1
Chicago/Turabian Style
Karimi, O., Ali reza Tavakolpour-Saleh and Seyed Ehsan Hosseini. 2023 "Investigating Overlap Ratio Effect on Performance of a Modified Savonius Wind Turbine: An Experimental Study" Preprints. https://doi.org/10.20944/preprints202308.1853.v1
Abstract
A Savonius wind turbine is one of the simplest vertical-axis turbines. Several researchers have been attracted to it because of its simple structure, low noise, appropriate torque, and independence from wind direction. SR3345 and SR5050 blade profiles will be investigated for their effects on the performance of Savonius wind turbines. First, the fabricated wind turbine is placed in front of an open circuit wind tunnel with a velocity of 6 m/s. Furthermore, governing relationships are used to calculate power and torque coefficients as well as tip speed. In this study, the power and torque coefficients of the turbine are compared with the two profiles considered based on overlap ratios between 0 and 0.3. Despite its increased stability, the central shaft reduced the power coefficient of the turbine. For blade SR3345, the best performance occurs at tip speed ratios of less than 1, while for blade SR5050, the best performance occurs at higher tip speed ratios. Both blades SR3345 and SR5050 achieve the highest power coefficients at overlap ratios of 0 and 0.18 when a central shaft is present.
Keywords
Savonius wind turbine; rotational speed; overlap ratio; power coefficients; torque coefficients; tip speed ratio
Subject
Engineering, Aerospace Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
