Influence of Deflector Using on The Performance of Modified Savonius Water Turbine Vertical Axes

Franciskus Delaphius Sunarya

Abstract

Savonius turbine is a simple vertical axis turbine which work because of a difference drag force between blades. This turbine can convert kinetic energy on water flow into mechanical energy. The Savonius water turbine can work on low water flow speed. This research aimed at a Savonius turbine that has some of its parameters modified. The research tested the effects of water flow speed and the use of a deflector towards the modified Savonius turbine’s performance. It is concluded that Savonius turbine without the deflector, reached a maximum power coefficient at the flow speed of 1,1 m/s with the value of 0,163 at tip speed ratio of 0,845. As for the same speed (1,1 m/s) the turbine that used the deflector reached a maximum power coefficient of 0,307 at tip speed ratio 1,136. The highest coefficient of power was reached when the turbine got tested with the deflector at flow speed of 0,9 m/s with value of 0,354 at tip speed ratio 1,230.

Keywords

Savonius, coefficient of power, deflector, modified.

References

Pope, K., Dincer, I., & Naterer, G. F. (2010). Energy and exergy efficiency comparison of horizontal and vertical axis wind turbines. Renewable energy, 35(9), 2102-2113.

Tian, W., Song, B., VanZwieten, J., & Pyakurel, P. (2015). Computational fluid dynamics prediction of a modified Savonius wind turbine with novel blade shapes. Energies, 8(8), 7915-7929.

Kamoji, M. A., Kedare, S. B., & Prabhu, S. V. (2009). Experimental investigations on single stage modified Savonius rotor. Applied Energy, 86(7-8), 1064-1073.

Golecha, K., Eldho, T. I., & Prabhu, S. V. (2011). Influence of the deflector plate on the performance of modified Savonius water turbine. Applied Energy, 88(9), 3207-3217.

Prasetyo, A., Kristiawan, B., Danardono, D., & Hadi, S. (2018, March). The Effect of Deflector Angle in Savonius Water Turbine with Horizontal Axis on the Power Output of Water Flow in Pipe. In Journal of Physics: Conference Series (Vol. 979, No. 1, p. 012043). IOP Publishing.

Ali, M. H. (2013). Experimental comparison study for Savonius wind turbine of two & three blades at low wind speed. International Journal of Modern Engineering Research (IJMER), 3(5), 2978-2986.

Sahim, K., Ihtisan, K., Santoso, D., & Sipahutar, R. (2014). Experimental study of Darrieus-Savonius water turbine with deflector: effect of deflector on the performance. International Journal of Rotating Machinery, 2014.

Golecha, K., Eldho, T. I., & Prabhu, S. V. (2011). Influence of the deflector plate on the performance of modified Savonius water turbine. Applied Energy, 88(9), 3207-3217.

Pakpahan, Daniel (2019) Pengaruh deflektor pada unjuk kerja kincir air savonius modifikasi berporos vertikal dua tingkat.

Riyanto, Yosua Dino (2019) unjuk kerja kincir air savonius vertikal dua tingkat sudu sejajar dalam saluran tertutup.

Article Metrics

Abstract view : 21 times

Refbacks

  • There are currently no refbacks.