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Een Tonadi
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Pengaruh Sudu dan Kecepatan Angin Terhadap Koefisien Torsi dan Koefisien Daya Serta Efisiensi Turbin Angin Savonius Sumbu Vertikal Chaidir chaidir; Niharman niharman; Een Tonadi
MAJALAH TEKNIK SIMES Vol 15 No 1 (2021): Januari 2021
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.1 KB) | DOI: 10.32663/simes.v15i1.1748

Abstract

Abstract The present paper is concerned with experimental study of performance of a vertical axis savonius wind turbine. Savonius turbine blades are made of PVC pipe and a fan to drive the turbine. The test was carried out with a different number of blades, namely 2 blades, 3 blades and 4 blades at air velocity of 3.6 m/s, 4.4 m/s and 5.8 m/s. The results obtained the highest maximum power efficiency is in the 3 blade test, namely at air velocity of 3.6 m/s of 0.156, air velocity of 4.4 m/s of 0.313 and air velocity of 5.8 m/s of 0.182. The maximum torque coefficient for the three air velocity also obtained the highest value in the 3 blade test. At a air velocity of 3.6 m/s, a torque coefficient of 0.641 is obtained, a air velocity of 4.4 m / s is 1.027 and a air velocity of 5.8 m/s is 0.745. The maximum efficiency in the 3 blades test with air velocities of 3.6 m/s, 4.4 m/s, and 5.8 m/s is obtained respectively 15.6%, 31.3% and 18.2% efficiency. In conclusion, the 3 blades wind turbine has the highest efficiency compared to the 2 and 4 blades tests. Meanwhile, the highest efficiency was obtained at a air velocity of 4.4 m / s with 3 blades, namely 31.3%.
Pengaruh Jumlah Sudu Terhadap Efisiensi Turbin Angin Savonius Sumbu Vertikal Niharman Niharman; Een Tonadi; Bobby Raditya Ardana
MAJALAH TEKNIK SIMES Vol 15 No 2 (2021): Juli 2021
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.501 KB) | DOI: 10.32663/simes.v15i2.2067

Abstract

One of the potential new and renewable energy sources is wind energy. Wind energy is a clean energy source with no emissions. The government is quite concerned about reducing the use of fossil energy sources and switching to renewable energy that is more friendly to the environment and has unlimited sources. for example in 2025 the government targets the installed capacity for wind energy to be 0.97 GW. For that we need a continuous study of the potential utilization of wind energy. The purpose of this study was to determine the effect of the number of blades on the efficiency of the vertical axis savonius turbine. The test was carried out with 3 variations in the number of blades, namely with 3 blades, 6 blades and 12 blades at a wind speed of 3.5 m / s. To drive the turbine, a fan is installed at a distance of 500 mm from the turbine. The results showed that the highest efficiency was owned by the turbine with the number of blades 12 at a wind speed of 3.5 m / s, namely 23% with a generator output power of 1.94 watts, 398.8 rpm rotation, 0.046 torque. The smallest efficiency was obtained in the 3 blade test, which was 4.2%. Then the research can be concluded that the number of blades greatly affects the value of efficiency, it can be seen that the number of blades 12 get a greater efficiency value than the number of blades 3 and 6.
Co-Authors Bobby Raditya Ardana Chaidir Chaidir Niharman niharman