Tirtaputra, Thariq Haidar Allam (2023) Studi Eksperimen Peningkatan Kinerja Turbin Angin Savonius dengan Penempatan Silinder Pengganggu di Depan Returning Blade dan di Samping Advancing Blade dengan Y/D = 1,71 dan S/D = 1,4. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Di Indonesia kebutuhan sumber energi semakin meningkat. Sumber energi di indonesia masih didominasi oleh bahan bakar fosil. Badan Pengkajian dan Penerapan Teknologi (BPPT) memproyeksikan konsumsi energi final akan meningkat hingga menjadi 2.518 juta setara barel minyak (SBM) pada tahun 2030. Dengan perkiraan pertumbuhan ekonomi rata-rata 7,1 persen per tahun hingga 2030, kebutuhan energi akan naik rata-rata 4,7 persen per tahun dari kebutuhan energi ditahun 2011. Dengan adanya penurunan dan keterbatasan penyediaan energi di Indonesia, diperlukan energi baru untuk memenuhi kebutuhan tersebut. Salah satu sumber energi tebarukan yang memiliki potensi adalah energi angin. Salah satu pemanenan energi angin dapat dilakukan dengan turbin angin Savonius, karna sesuai dengan kondisi angin di indonesia yang cenderung rendah. Turbin angin Savonius memiliki kelemahan, yakni efisiensi lebih rendah dibandingkan jenis turbin lainnya. Oleh karna itu dilakukan penelitian untuk meningkatkan kinerja turbin angin Savonius dengan mamasang silinder pengganggu di depan returning blade dan di samping advancing blade. Penelitian turbin angin Savonius dilakukan secara eksperimen dengan tiga macam konfigurasi. Silinder pengganggu diletakkan pada sisi samping advancing blade untuk konfigurasi pertama dengan Y/D = 1,71, silinder pengganggu diletakan pada sisi depan returning blade untuk konfigurasi kedua dengan S/D 1,4, sedangkan untuk konfigurasi ketiga silinder pengganggu diletakkan di sisi depan returning blade dan samping advancing blade dengan jarak yang sudah ditentukan. Digunakan turbin 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 variasi kecepatan angin 5, 6, dan 7 m/s dengan bantuan axial fan sebagai sumber energi angin. 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 dalam penelitian ini bahwa penempatan silinder pengganggu di depan returning blade pada konfigurasi A efektif untuk meningkatkan nilai coefficient of power pada kecepatan angin 5 m/s dan 7 m/s. pada konfigurasi B dengan pemasangan silinder pengganggu di samping advancing blade efektif meningkatkan coefficient of power pada kecepatan angin 5 m/s, dan 7 m/s. dan pada konfigurasi C dengan pemasangan dilinder pengganggu di depan returning dan di samping advancing blade. Efektif meningkatkan coefficient of power pada kecepatan angin 5 m/s, dan 7 m/s. nilai coefficient of power tertinggi sebesar 0,0921 atau mengalami kenaikan sebesar 33% dibandingkan dengan turbin angin Savonius tanpa silinder pengganggu pada kecepatan angin 5m/s. Maka dapat dikatakan bahwa kinerja turbin angin Savonius pada konfigurasi C lebih efektifpada kecepatan angin tertentu.
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In Indonesia, the need for energy resources is increasing. Energy sources in Indonesia are still dominated by fossil fuels. The Agency for the Assessment and Application of Technology (BPPT) projects that final energy consumption will increase to 2,518 million barrels of oil equivalent (SBM) by 2030. With an estimated average economic growth of 7.1 percent per year until 2030, energy demand will increase by an average of 4.7 percent per year from the energy demand in 2011. With the decline and limited supply of energy in Indonesia, new energy is needed to meet these needs. One source of renewable energy that has potential is wind energy. One of the wind energy harvesting can be done with the Savonius wind turbine, because it is in accordance with the wind conditions in Indonesia which tend to be low. Savonius wind turbines have a weakness, namely lower efficiency compared to other types of turbines. Therefore, research was conducted to improve the performance of the Savonius wind turbine by installing a disturbance cylinder in front of the returning blade and next to the advancing blade. Savonius wind turbine research was conducted experimentally with three configurations. The disturbance cylinder is placed on the side of the advancing blade for the first configuration with Y/D = 1.71, the disturbance cylinder is placed on the front side of the returning blade for the second configuration with S/D 1.4, while for the third configuration the disturbance cylinder is placed on the front side of the returning blade and the side of the advancing blade with a predetermined distance. A two-bladed Savonius turbine with a blade diameter (D) of 165.2 mm, turbine height (H) of 295 mm, shaft diameter (b) of 19 mm, and end plate diameter (Do) of 320 mm was used. The research was conducted using wind speed variations of 5, 6, and 7 m/s with the help of an axial fan as a source of wind energy. Wind speed was measured with an anemometer, static torque was measured with a torquemeter, dynamic torque was measured with a brake dynamometer, and turbine angular speed was measured with a tachometer. The results obtained in this study are that the placement of a disturbance cylinder in front of the returning blade in A configuration is effective in increasing the coefficient of power at wind speeds of 5 m/s and 7 m/s. in configuration B with the installation of interfering cylinders beside the advancing blade effectively increases the coefficient of power at wind speeds of 5 m/s and 7 m/s. and in the C configuration with the installation of a disturbance cylinder in front of the returning and beside the advancing blade. Effectively increases the coefficient of power at wind speeds of 5 m/s and 7 m/s. the highest coefficient of power value is 0.0921 or an increase of 33% compared to the Savonius wind turbine without interfering cylinders at a wind speed of 5m/s. So it can be said that the performance of the Savonius wind turbine in the C configuration is more effective at a certain wind speed.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | : turbine moment coefficient, turbin power coefficient, turbin static torque, coefficient, turbin Savonius, silinder sirkular. : turbine moment coefficient, turbin power coefficient, turbin static torque coefficient, Savonius turbine, circular cylinder. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Thariq Haidar Allam Tirtaputra |
| Date Deposited: | 16 Feb 2023 11:06 |
| Last Modified: | 30 Aug 2023 08:10 |
| URI: | http://repository.its.ac.id/id/eprint/97418 |
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