Alzamor, Deanova Ghivari (2022) Studi Eksperimen Peningkatan Kinerja Turbin Angin Savonius Dengan Penempatan Silinder Pengganggu Di Depan Returning Blade Dan Di Samping Advancing Blade. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada tahun 2019, sumber energi di Indonesia masih didominasi oleh bahan bakar fosil dengan batu bara sebesar 35,9% dan bahan bakar berbasis minyak sebesar 33,7% dari total suplai energi yang dimanfaatkan. Transformasi dari sumber energi fosil ke Energi Baru dan Terbarukan (EBT) dirasa perlu. Salah satu sumber EBT yang potensial adalah energi angin dengan total energi sebesar 60.647 MW. Indonesia baru mampu memanfaatkan energi angin sebesar 154 MW. Namun, tidak semua daerah di Indonesia memiliki kecepatan angin yang memadai. Salah satu jenis turbin angin yang cocok untuk daerah yang memiliki kecepatan angin rendah adalah turbin angin Savonius. Turbin angin Savonius memiliki kelemahan, yakni efisiensi paling rendah dibandingkan tipe turbin lainnya. Oleh karena itu, penelitian untuk meningkatkan kinerja turbin Savonius dengan meletakkan silinder pengganggu di depan returning blade dan di samping advancing blade dilakukan. Penelitian turbin angin Savonius secara eksperimen dilakukan menggunakan turbin angin Savonius yang memiliki dua sudu turbin dengan diameter sudu (D) 165,2 mm, tinggi turbin (H) 295 mm, diameter poros (b) 19 mm, dan diameter end plate (Do) 320 mm. Penelitian dilakukan menggunakan kecepatan angin 4, 5, 6, dan 7 m/s dengan bantuan axial fan sebagai sumber energi angin. Sebagai upaya meningkatkan performa turbin angin Savonius, diletakkan silinder pengganggu dengan rasio ukuran diameter silinder (d/D) = 0,5. Digunakan dua konfigurasi penempatan silinder penganggu dalam penelitian ini. Konfigurasi pertama menggunakan silinder pengganggu di samping advancing blade dengan posisi Y/D = 1,61. Konfigurasi kedua menggunakan 1 silinder pengganggu di depan returning blade turbin dengan posisi S/D = 1,61, serta 1 silinder pengganggu di samping advancing blade turbin dengan posisi Y/D = 1,61. Kecepatan angin diukur dengan anemometer, torsi statis diukur dengan torquemeter, torsi dinamis diukur dengan brake dynamometer, dan kecepatan sudut turbin diukur dengan tachometer. Hasil yang diperoleh dari penelitian ini adalah bahwa penempatan silinder pengganggu di samping advancing blade pada konfigurasi 1 efektif meningkatkan nilai coefficient of power sebesar 33,03% pada kecepatan 4 m/s. Sedangkan, penempatan silinder pengganggu di samping advancing blade dan di depan returning blade pada konfigurasi 2 efektif meningkatkan coefficient of power sebesar 20,35% pada kecepatan 4 m/s. Nilai coefficient of power tertinggi pada konfigurasi 2 sebesar 0,0824 atau mengalami kenaikan 8,56% dibandingkan dengan konfigurasi 1 ditemukan pada kecepatan angin 7 m/s.
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In 2019, energy sources in Indonesia were still dominated by fossil fuels with coal at 35.9% and oil-based fuels at 33.7% of the total energy supply being utilized. The transformation from fossil energy sources to New and Renewable Energy (EBT) is deemed necessary. One of the potential renewable energy sources is wind energy with a total energy of 60.647 MW. Indonesia has only been able to utilize wind energy of 154 MW. However, not all regions in Indonesia have adequate wind speeds. One type of wind turbine that is suitable for areas with low wind speeds is the Savonius wind turbine. The Savonius wind turbine has a weakness, namely the lowest efficiency compared to other turbine types. Therefore, research to improve the performance of the Savonius turbine by placing the disturbance cylinder in front of the returning blade and next to the advancing blade was carried out. The Savonius wind turbine research was experimentally carried out using a Savonius wind turbine which has two turbine blades with a blade diameter (D) of 165.2 mm, turbine height (H) 295 mm, shaft diameter (b) 19 mm, and end plates diameter (Do) 320 mm. The research was conducted using variations in wind speeds of 4, 5, 6, and 7 m/s with the help of an axial fan as a source of wind energy. In an effort to improve the performance of the Savonius wind turbine, a disturbance cylinder is placed with a cylinder diameter ratio (d/D) = 0.5. Two configurations of disturbance cylinder placement were used in this study. The first configuration uses a disturbance cylinder next to the advancing blade with a Y/D = 1.61 position. The second configuration uses 1 disturbance cylinder in front of the returning blade turbine with a position of S/D = 1.61, and 1 disturbance cylinder next to the advancing blade turbine with a Y/D = 1.61 position. Wind speed was measured with an anemometer, static torque was measured with a torquemeter, dynamic torque was measured with a brake dynamometer, and angular speed was measured with a tachometer. The results obtained from this study are that the placement of the disturbance cylinder next to the advancing blade in configuration 1 effectively increases the coefficient of power by 33.03% at a speed of 4 m/s. Meanwhile, the placement of the disturbance cylinder next to the advancing blade and in front of the returning blade in configuration 2 effectively increases the coefficient of power by 20.35% at a speed of 4 m/s. The highest coefficient of power value in configuration 2 is 0.0824 or an increase of 8.56% compared to configuration 1 was found at a wind speed of 7 m/s.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 621.406 Alz s-1 2022 |
| Uncontrolled Keywords: | Coefficient of Power, Coefficient of Moment, Coefficient of Static Torque, Turbin Angin Savonius, Silinder Penggangg |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics. Fluid Mechanics |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 18 Feb 2025 02:40 |
| Last Modified: | 18 Feb 2025 02:40 |
| URI: | http://repository.its.ac.id/id/eprint/118773 |
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