PENGARUH JUMLAH SUDU TERHADAP KINERJA TURBIN ANGIN SAVONIUS

GAOL, HENDRA SUHARDIMAN MARBUN LUMBAN and Kaprawi, Kaprawi (2016) PENGARUH JUMLAH SUDU TERHADAP KINERJA TURBIN ANGIN SAVONIUS. Undergraduate thesis, Sriwijaya university.

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Abstract

Savonius wind lurbine is a type of vertical axis wind turbines that capable to converting horizontal wind energy into kinetic energy of rotation. Finnish engineer Sigurd Johannes Savonius in 1922 was developing this turbine, but before it there has been turbine concept that close enough made by Bishop of Czanad in the book Machinae novae published 1616. Savonius wind turbine is a wind turbine to wind energy utilization happen by utilizing the wind speed. The blade shape design is to produce thrust on blades that will be rotating the rotor. The rotation quantity of rotor produced is directly proportional with wind speed. The purpose of the research are to reviewing wind speeds effect and turbine rotating effect on wind turbine power produced, to indicate the work of wind turbine with differential variation. The research doing by testing and comparison to delve the effect of blade number against Savonius wind turbine performance with using 2 models, there are two blade model and three blade model. Savonius wind turbine designing by used Autodesk Inventor Professional 2016 Software. The wind turbine prototype designing and fabricated by used fiber plate material because it has good hardiness and low density. Moreover, the circular fiber plate shape is to simplify the manufacturing wind turbine process. The wind turbine design has dimension ratio high (H) = 400mm and diameter (D) = 502mm. The blades of Savonius wind turbine is I Iollow half-cylinder because it is formed of a half cylinder hollow, the drag coefficient (CDA = 2.30), and when the air flow is passing over the convex side (Cqb = 2.30). The created model has (overlap e = 0). Both models are tested and conscientious by using wind tunnel with low wind speed because most of Savonius wind turbine have maximum performance at (X = TSR = 1) and the high starling torque at low wind speeds. From the result that has been measured the Savonius wind turbine with two blades is most efficient, it has power coefficient (CP = 0,00912) at Tip Speed Ratio (k = 0,27195), while than Savonius wind turbine with three blades has (CP = 0,0071) at (k 0.1739). Torque will be increased with the addition of load, otherwise k will decrease due to the reduced rotation produced by Savonius wind turbine, for wind turbine with two blades, has value (k = 0.44569) is higher than wind turbine with three blades (X = 0.41212) at noload condition. It has been proven by turbine rotation (n) and angular speed (co) that betler when without load position, where is wind turbine with two blades (n = 212.4 rpm, and co = 22.2312 rad/s) and for wind turbine with three blades (n = 196.4 rpm, and co = 20.5565 rad/s). The increasing of load can cause turbine rotate is decreasing. This moment will cause decreasing the maximum given load. Finally, if setting more load the turbine cannot be rotating (k = 0). Therefor the conclution that the increasing of number blade will increasing drag force against lo air flow. Keywords : Wind Turbine, Savonius, Blade, Drag, Power, Torque

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Turbin Angin, Savonius, Sudu, Drag, Daya, Torsi
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ266-267.5 Turbines. Turbomachines (General)
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Ichlasyah Aisyah
Date Deposited:	27 Aug 2025 02:45
Last Modified:	27 Aug 2025 02:45
URI:	http://repository.unsri.ac.id/id/eprint/183351

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