Anugraheni, Rewila Fajar (2023) Studi Eksperimental Pengaruh Pemasangan Elips Di Samping Advancing Blade Terhadap Kinerja Turbin Angin Savonius “Studi Kasus untuk Jarak Y/D = 1,5; Ukuran Elips B/A = 1 dan 1/4; Variasi Kecepatan Angin 4, 5, 6, dan 7 m/s”. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Konsumsi kebutuhan listrik di Indonesia naik secara signifikan yang dipengaruhi oleh meningkatnya aktivitas mulai dari sektor rumah tangga, industri, komersial, transportasi dan sektor lainnya. Dengan semakin meningkatnya permintaan listrik dari berbagai sektor maka akan semakin meningkat pula emisi yang dihasilkan dari energi tak terbarukan. Untuk mengatasi ketergantungan energi tak terbarukan, maka diperlukan adanya pengembangan lebih lanjut untuk mendapatkan sumber energi baru terbarukan dengan memanfaatkan energi angin. Salah satu alat yang dapat memanfaatkan energi angin ialah turbin angin Savonius. Turbin angin Savonius merupakan jenis turbin yang sesuai digunakan untuk kondisi angin di Indonesia dengan kecepatan berkisar 3 hingga 6 m/s. Akan tetapi, performa turbin angin Savonius paling rendah dibandingkan jenis turbin lainnya. Oleh karena itu, penelitian ini dilakukan untuk menganalisa peningkatan performa turbin angin Savonius dengan konfigurasi pertama dilakukan peletakan silinder sirkular rasio (B/A) = 1 di samping advancing blade dan konfigurasi kedua dilakukan peletakan elips rasio (B/A) = 1/4 di samping advancing blade.
Pada Penelitian ini dilakukan menggunakan turbin angin Savonius dengan diameter sudu turbin (D) sebesar 165,2 mm, diameter end plate sebesar 333,7 mm, tinggi turbin (H) sebesar 295 mm, dan diameter poros (d) sebesar 19 mm. Penelitian ini dilakukan dengan ditempatkannya silinder sirkular dan elips di samping advancing blade dengan rasio jarak (Y/D) 1,5 serta pada penelitian ini dilakukan dengan variasi kecepatan angin sebesar 4, 5, 6 dan 7 m/s yang kecepatannya diatur dengan mengkontrol nilai voltase dari axial fan menggunakan voltage regulator serta kecepatannya diukur menggunakan anemometer. Pengukuran performa turbin dilakukan dengan pengukuran nilai torsi statis menggunakan torquemeter kemudian pengukuran torsi dinamis menggunakan brake dynamometer serta kecepatan rotasi turbin menggunakan tachometer.
Berdasarkan hasil analisis data performa turbin angin Savonius, pemasangan silinder sirkular dan silinder elips pada seluruh variasi kecepatan angin dapat meningkatkan nilai coefficient of power dengan peningkatan terhadap turbin angin konvensional sebesar 20,02%-30,7% untuk silinder sirkular dan 17,89%-41,08% untuk silinder elips. Kemudian, secara keseluruhan, peletakan silinder elips memiliki peningkatan kinerja turbin yang lebih tinggi dibandingkan dengan silinder. Baik peletakan silinder sirkular maupun silinder elips pada seluruh kecepatan dapat meningkatkan kemampuan self starting dari turbin angin Savonius.
Kata kunci: Turbin angin Savonius, Elips, Putaran Turbin, Silinder, Coefficient of power, Coefficient of moment.
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Electricity consumption in Indonesia has increased significantly, which is influenced by increased activity in the household, industrial, commercial, transportation and other sectors. With the increasing demand for electricity from various sectors, the emission from non-renewable energy will also increase. To overcome dependence on non-renewable energy during growing electricity demand, further development is needed to obtain new renewable energy sources, one of which is wind energy. One of the tools that can utilize wind energy is the Savonius wind turbine. The Savonius wind turbine is suitable for wind conditions in Indonesia with speeds ranging from 3 to 6 m/s. However, the performance of the Savonius wind turbine is the lowest compared to other types of turbines. This study was conducted to analyze the performance improvement of the Savonius wind turbine with the first configuration, which is given a circular cylinder ratio (B/A) = 1 beside the advancing blade, then the second configuration is placing an ellipse ratio (B/A) = 1/4 beside the advancing blade.
This research was conducted using a Savonius wind turbine with a turbine blade diameter (D) of 165.2 mm, an end plate diameter of 333.7 mm, a turbine height (H) of 295 mm, and a shaft diameter (b) of 19 mm. Furthermore, in this study, a circular cylinder with a diameter of (d) 82.6 mm was used. This research was conducted by placing a elliptical next to the advancing blade with a distance ratio (Y/D) of 1.5 and in this study carried out with variations in wind speed of 4, 5, 6 and 7 m/s whose speed is regulated by controlling the voltage value of the axial fan using a voltage regulator and the speed is measured using an anemometer. Turbine performance measurement is done by measuring the static torque value using a torque meter then measuring the dynamic torque using a brake dynamometer and turbine rotation speed using a tachometer.
Based on the results of the Savonius wind turbine performance data analysis, the installation of cylinder and ellipse at all wind speed variations can increase the coefficient of power with an increase of 20.02%-30.7% for cylinder and 17.89%-41.08% for ellipse respectively compared to conventional Savonius turbines. Then, overall, the installation of ellipse has a higher increase in turbine performance compared to the cylinder. Both installation of cylinder and ellipse at all speeds can improve the self-starting capability of the Savonius wind turbine.
Keywords: Savonius Wind Turbine, Ellipse Disturbance, Turbine Rotation, Static Torque, Coefficient of power, Coefficient of moment.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Savonius Wind Turbine, Ellipse Disturbance, Turbine Rotation, Static Torque, Coefficient of power, Coefficient of moment, Turbin angin Savonius, Elips, Putaran Turbin, Silinder, Coefficient of power, Coefficient of moment |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ266 Turbines. Turbomachines (General) |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Rewila Fajar Anugraheni |
| Date Deposited: | 26 Jul 2023 01:48 |
| Last Modified: | 26 Jul 2023 01:48 |
| URI: | http://repository.its.ac.id/id/eprint/99360 |
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