Experimental Investigation of S-Rotors in Open and Bounded Flows
The common practice of operating S-rotor is in an
open environment; however there are times when the rotor is
installed in a bounded environment and there might be changes in the
performance of the rotor. This paper presents the changes in the
performance of S-rotor when operated in bounded flows. The
investigation was conducted experimentally to compare the
performance of the rotors in bounded environment against open
environment. Three different rotors models were designed, fabricated
and subjected to experimental measurements. All of the three models
were having 600 mm height and 300 mm Diameter. They were tested
in three different flow environments; namely: partially bounded
environment, fully bounded environment and open environment.
Rotors were found to have better starting up capabilities when
operated in bounded environment. Apart from that, all rotors manage
to achieve higher Power and Torque Coefficients at a higher Tip
Speed Ratio as compared to the open environment.
[1] J.L. Menet and N. Bourabaa, N "Increase in The Savonius Rotor
Efficiency via Parametric Investigation", France..
[2] M.A. Kamoji , S.B. Kedare, and S.V. Prabhu , 2009, "Experimental
investigations on single stage modified Savonius rotor", India, Applied
Energy, 86, 1064-1073
[3] K Irabu and J. N. Roy, 2007, "Characteristics of wind power
on Savonius rotor using a guide-box tunnel", Japan, Experimental
Thermal and Fluid Science, 32, 580-586.
[4] M.H. Mohamed, G. Janiga, E. Pap, and D. Thévenin; 2010,
"Optimization of Savonius Turbines Using an Obstacle Shielding the
Returning Blade", Germany, Renewable Energy, 35, 2618-2626.
[5] B.D. Altan , and M At─▒lgan, 2008, "An experimental and numerical
study on the improvement of the performance of Savonius wind rotor",
Turkey, Energy Conversion and Management, 49, 3425-3432
[6] V.J. Modi and MSUK Fernando, 1989; "On the performance of the
Savonius wind turbine". JSol Energy Eng, 111:71-81.
[7] U.K. Saha , S. Thotla, and D. Maity ; 2008, "Optimum design
configuration of Savonius rotor through wind tunnel experiments",
India, Journal of Wind Engineering and Industrial Aerodynamics, 96,
1359- 1375.
[8] U.K. Saha and M. Jaya Rajkumar On the performance analysis of
Savonius rotor with twisted blades, Renewable Energy 31 (2006) 1776-
1788.
[9] H.H. Al-Kayiem & A. E Sa-ad Al-Deen,., Performance Analysis of
Savonius Wind Rotor for Directed Flow Operation. Proceedings of the
1st Engineering Conference (EnCon), December 27-28, Kuching,
Sarawak, Malaysia, 2007.
[10] B. K. Debnath, A Biswas, and R Gupta, Computational Fluid Dynamic
analysis of combined three-bucket Savonius and three-bladed Darries
Rotors at various overlap conditions, Journal of Renewable and
Sustainable Energy 1.0033110, 033110-1-13(2009).
[1] J.L. Menet and N. Bourabaa, N "Increase in The Savonius Rotor
Efficiency via Parametric Investigation", France..
[2] M.A. Kamoji , S.B. Kedare, and S.V. Prabhu , 2009, "Experimental
investigations on single stage modified Savonius rotor", India, Applied
Energy, 86, 1064-1073
[3] K Irabu and J. N. Roy, 2007, "Characteristics of wind power
on Savonius rotor using a guide-box tunnel", Japan, Experimental
Thermal and Fluid Science, 32, 580-586.
[4] M.H. Mohamed, G. Janiga, E. Pap, and D. Thévenin; 2010,
"Optimization of Savonius Turbines Using an Obstacle Shielding the
Returning Blade", Germany, Renewable Energy, 35, 2618-2626.
[5] B.D. Altan , and M At─▒lgan, 2008, "An experimental and numerical
study on the improvement of the performance of Savonius wind rotor",
Turkey, Energy Conversion and Management, 49, 3425-3432
[6] V.J. Modi and MSUK Fernando, 1989; "On the performance of the
Savonius wind turbine". JSol Energy Eng, 111:71-81.
[7] U.K. Saha , S. Thotla, and D. Maity ; 2008, "Optimum design
configuration of Savonius rotor through wind tunnel experiments",
India, Journal of Wind Engineering and Industrial Aerodynamics, 96,
1359- 1375.
[8] U.K. Saha and M. Jaya Rajkumar On the performance analysis of
Savonius rotor with twisted blades, Renewable Energy 31 (2006) 1776-
1788.
[9] H.H. Al-Kayiem & A. E Sa-ad Al-Deen,., Performance Analysis of
Savonius Wind Rotor for Directed Flow Operation. Proceedings of the
1st Engineering Conference (EnCon), December 27-28, Kuching,
Sarawak, Malaysia, 2007.
[10] B. K. Debnath, A Biswas, and R Gupta, Computational Fluid Dynamic
analysis of combined three-bucket Savonius and three-bladed Darries
Rotors at various overlap conditions, Journal of Renewable and
Sustainable Energy 1.0033110, 033110-1-13(2009).
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:60357", author = "Hussain H. Al-Kayiem and Goh Jin Ming", title = "Experimental Investigation of S-Rotors in Open and Bounded Flows", abstract = "The common practice of operating S-rotor is in an
open environment; however there are times when the rotor is
installed in a bounded environment and there might be changes in the
performance of the rotor. This paper presents the changes in the
performance of S-rotor when operated in bounded flows. The
investigation was conducted experimentally to compare the
performance of the rotors in bounded environment against open
environment. Three different rotors models were designed, fabricated
and subjected to experimental measurements. All of the three models
were having 600 mm height and 300 mm Diameter. They were tested
in three different flow environments; namely: partially bounded
environment, fully bounded environment and open environment.
Rotors were found to have better starting up capabilities when
operated in bounded environment. Apart from that, all rotors manage
to achieve higher Power and Torque Coefficients at a higher Tip
Speed Ratio as compared to the open environment.", keywords = "Bounded Flows, Savonius Rotor, Wind Turbine,Wind energy, VAWT", volume = "5", number = "12", pages = "2660-6", }