Shabrina, Dhia Fairuz (2022) Studi Eksperimen Kinerja Turbin Angin Savonius Dengan Instalasi Silinder Sirkular Di Samping Sudu Advancing Dan Di Depan Sudu Returning “Studi Kasus untuk Ukuran Silinder Sirkular d/D = 0,5 pada Jarak Instalasi Y/D = 1,42 dan S/D = 1,42 dengan Kecepatan Angin 4, 5, 6, dan 7 m/s”. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kebutuhan energi di Indonesia semakin meningkat seiring peningkatan jumlah penduduknya. Dalam memenuhi kebutuhan energi, diperlukan pemanfaatan energi baru dan terbarukan untuk menggantikan energi fosil yang akan habis. Salah satu sumber energi terbarukan yang berpotensi adalah energi angin. Pemanenan energi angin dapat dilakukan dengan turbin angin Savonius yang sesuai dengan kondisi kecepatan angin di Indonesia yang cenderung rendah. Turbin ini memiliki konstruksi sederhana dan dapat beroperasi pada kecepatan putaran rendah, tetapi memiliki efisiensi yang lebih rendah dibandingkan jenis turbin lain. Oleh karena itu, dilakukan penelitian untuk mengetahui performa turbin angin Savonius dengan memasang silinder sirkular di samping sudu advancing dan di depan sudu returning turbin. Eksperimen skala laboratorium dilakukan dengan dua macam konfigurasi. Pada konfigurasi pertama, silinder sirkular diletakkan di samping sudu advancing dengan Y/D = 1,42. Pada konfigurasi kedua, silinder sirkular diletakkan di samping sudu advancing dengan Y/D = 1,42 dan di depan sudu returning dengan S/D = 1,42. Digunakan turbin Savonius dengan tinggi (H) = 295 mm, diameter poros (e) = 19 mm, dan diameter sudu (D) = 165,2 mm serta silinder sirkular dengan panjang (h) = 490 mm dan diameter (d) = 88,18 mm atau d/D = 0,5. Kecepatan angin divariasikan sebesar 4, 5, 6, dan 7 m/s. Aliran angin dari axial fan dijaga keseragamannya dengan honeycomb dan diatur kecepatannya dengan mengatur tegangan dari voltage regulator. Kecepatan angin diukur dengan anemometer, torsi statis dengan torquemeter, kecepatan putaran turbin dengan tachometer, dan torsi dinamis dengan brake rope dynamometer. Dilakukan analisis performa turbin berupa coefficient of moment, coefficient of power, dan coefficient of static torque turbin. Berdasarkan hasil analisis data performa turbin angin Savonius, pemasangan silinder sirkular dengan konfigurasi pertama pada jarak Y/D = 1,42 tidak memberikan peningkatan signifikan terhadap coefficient of power dan coefficient of moment turbin, tetapi mampu meningkatkan kemampuan self-starting turbin. Selain itu, pemasangan silinder sirkular dengan dengan kofigurasi kedua pada jarak Y/D = 1,42 dan S/D = 1,42 tidak meningkatkan coefficient of power dan coefficient of moment turbin, tetapi mampu meningkatkan kemampuan elf�starting turbin. Pada turbin disertai pemasangan silinder sirkular dengan konfigurasi pertama dan kedua, peningkatan kecepatan angin menghasilkan performa relatif terhadap turbin konvensional yang semakin menurun
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Energy consumption in Indonesia is increasing along with the increase of its population. To fullfill energy demand, renewable energy is needed to replace fossil energy that will eventually run out. One of the potential renewable energy sources is wind energy. Wind energy harvesting can be done with a Savonius wind turbine that suits the average wind speed in Indonesia, which tends to be low. This turbine has a simple construction and can operate at low angular speed, but has lower efficiency than other types of turbines. Therefore, this research is conducted to find out the performance of the Savonius wind turbine with installation of circular cylinders beside the advancing blade and in front of the returning blade. This research is conducted in a laboratory-scale experiment with two kinds of configurations. In the first configuration, the circular cylinder is placed next to the advancing blade with Y/D = 1.42. In the second configuration, the circular cylinders are placed beside the advancing blade with Y/D = 1.42 and in front of the returning blade with S/D = 1.42. This research uses Savonius turbine with height (H) = 295 mm, shaft diameter (e) = 19 mm, and blade diameter (D) = 165.2 mm and circular cylinders with length (h) = 490 mm and diameter (d) = 88 .18 mm or d/D = 0.5. The wind speed is varied by 4, 5, 6, and 7 m/s. Airflow from an axial fan is maintained for its uniformity with a honeycomb and the speed is adjusted by adjusting the voltage from the voltage regulator. Wind speed is measured with an anemometer, static torque with a torquemeter, turbine’s angular speed with a tachometer, and dynamic torque with a brake rope dynamometer. Turbine performance analysis is carried out in the form of coefficient of moment, coefficient of power, and coefficient of static torque. Based on the analysis of the Savonius wind turbine performance, the installation of a circular cylinder with the first configuration at a distance of Y/D = 1.42 does not provide a significant increase in the turbine's coefficient of power and coefficient of moment, but it increases the self-starting capability. Furthermore, the installation of circular cylinders with the second configuration at a distance of Y/D = 1.42 and S/D = 1.42 does not increase the turbine's coefficient of power and coefficient of moment, but it increases the self-starting capability. For turbine with installation of circular cylinder, i
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 621.406 Sha s-1 2022 |
| Uncontrolled Keywords: | Coefficient of Moment, Coefficient of Power, Coefficient of Static Torque, Silinder Sirkular, Turbin Savonius. |
| 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 03:08 |
| Last Modified: | 18 Feb 2025 03:08 |
| URI: | http://repository.its.ac.id/id/eprint/118780 |
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