Kajian Eksperimen Pengaruh Sudut Stagger Silinder Di Depan Returning Blade Terhadap Coefficient Of Power Turbin Angin Savonius Sudu Fin Dengan Profile Blade Myring n=1

Abstract

Savonius wind turbines are widely used for wind energy utilization eventhough their
performance is considered lower than other types of turbines. In 3 previous studies, additional
disturbance cylinder in front of returning blade and additional fin on blade could improve the turbine
performance but the increase was not optimum. Based on these problems, this experimental study used
one additional fin type myring n = 1 on the blade. Circular cylinders have a distance ratio of 340 mm,
with various airspeed of 7 m/s, 6 m/s, 5 m/s, and various cylinder angles of 45°, 50°, 55°, 60°. The
experiment was performed 12 times to determine the effect to coefficient of power (Cp) and coefficient
of torque (Ct). The turbine best performance is obtained at a cylinder angle of 60° and a wind speed of
6 m/s. The results are 0.394 for coefficient of power (Cp) and 0.688