Riswantarbi, Audiyatra Aji (2016) Studi Eksperimen Pengaruh Variasi Sudut Penempatan Plat Datar Pengganggu Di Depan Returning Blade Terhadap Performa Turbin Angin Savonius. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Turbin angin tipe Savonius adalah salah satu turbin angin yang ideal untuk wilayah dengan potensi energi angin seperti di Indonesia. Pada prinsipnya, turbin Savonius bekerja dengan memanfaatkan selisih gaya drag yang dihasilkan dari kedua sudu, yaitu advancing dan returning blade. Pada studi eksperimen ini, sebuah plat pengganggu diletakkan di depan returning blade untuk mengurangi gaya drag pada sudu tersebut, hal ini diharapkan dapat meningkatkan performa dari turbin Savonius yang digunakan. Untuk meningkatkan performa dari turbin Savonius yang memiliki diameter sudu (D) 60 mm dan tinggi 80 mm, sebuah plat dengan lebar 62,118 mm dan tinggi 150 mm digunakan sebagai sebuah pengganggu yang diletakkan di depan returning blade. Pengganggu ini diposisikan dengan variasi sudut 0º ≤ α ≤ 90º. Eksperimen ini dilakukan pada wind tunnel subsonic open circuit. Spesifikasi dari wind tunnel yang digunakan yaitu memiliki panjang 2980 mm dengan test section berukuran 304 mm x 304 mm. Kecepatan aliran udara pada wind tunnel dapat diatur pada 8,83 m/s, 11,03 m/s, 13,24 m/s , disesuaikan dengan bilangan Reynolds (Re) = 6 x 104 , 7,5 x 104 , dan 9 x 104 (berdasarkan pada panjang karakteristik L = 2d-b, dimana b adalah lebar overlap antara kedua sudu, dan kecepatan aliran udara). K
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is one of several types of wind turbines which is ideal for regions with wind energy potential such as in Indonesia. In principle, Savonius turbine works caused by the difference of the drag force generated by its blades, advancing and returning blades. In this experimental study, an obstacle plate is placed in front of the returning blade to reduce the drag force of the blade, it is expected can improve the performance of Savonius turbine used. In order to increasing the performance of Savonius wind turbine having a diameter D of 60 mm and height h of 80 mm, a plate having a width of 62.118 mm and a height of 150 mm is used as a disturbance located in front of returning blade of turbine. This disturbance is located in various angle of 0o < α < 90o . The experiments were carried out in a subsonic open circuit wind tunnel. This facility has a 2980 mm long, with test section 304 mm x 304 mm. The free stream velocity of wind tunnel could be adjusted to 8.83 m/s, 11.03 m/s, 13.24 m/s, corresponding respectively to Reynolds number Re = 6.0x104 , 7.5x104 , 9.0x104 (based on equivalent length of L = 2D-b, where b is the width of overlap of the two turbine blades, and the free stream velocity). The velocity of wind is measured using a pitot-static tube connected to the inclined manometer.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 621.406 Ris s |
| Uncontrolled Keywords: | Performa turbin savonius; plat datar pengganggu sudut bukaan plat pengganggu |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Yeni Anita Gonti |
| Date Deposited: | 22 Jun 2020 04:55 |
| Last Modified: | 22 Jun 2020 04:55 |
| URI: | http://repository.its.ac.id/id/eprint/76197 |
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