Putra, Muhammad Rafi Athaillah (2023) Studi Eksperimen Kinerja Turbin Angin Savonius Dengan Instalasi Silinder Sirkular Di Depan Sudu Returning Dan Di Samping Sudu Advancing. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada saat ini kebutuhan energi di Indonesia semakin meningkat hal ini dikarnakan peningkatan jumlah penduduk di Indonesia yang tinggi, maka dari itu Indonesia memerlukan pemanfaatan energi baru dan terbarukan untuk menggantikan energi fosil yang semakin berkurang tiap tahunya. Salah satu sumber energi baru dan terbarukan yang berpotensi adalah energi angin, untuk pemanenan energi angin dapat dilakukan dengan turbin angin Savonius, dikarnakan turbin angin Savonius sesuai dengan karakteristik kecepatan angin di indonesia yang cenderung rendah. Turbin jenis ini dapat beroprasi dengan kecepatan putaran yang rendah dan juga mempunyai konstruksi yang sederhana, tetapi turbin ini memiliki tingkat efisiensi yang lebih rendah dibandingkan jenis turbin lainya. Maka dari itu dilakukan penelitian untuk meningkatkan perforam turbin angin Savonius dengan memasangkan silinder sirkular di depan sudu returning dan di samping sudu advancing Penelitian dilakukan dengan eksperimen skala laboratorium dengan tiga konfigurasi. Untuk konfigurasi pertama, silinder sirkular diletakkan di depan sudu returning dengan S/D = 1,4. Pada konfigurasi kedua, silinder sirkular diletakkan di samping sudu advancing dengan Y/D = 1,42. Pada konfigurasi ketiga silinder sirkular diletakkan di depan sudu returning dengan S/D = 1,4 dan di samping sudu advancing dengan Y/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. Variasi kecepatan angin sebesar 5, 6, dan 7 m/s. Aliran angin dari axial fan dijaga 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. Hasil diperoleh dari penelitian ini adalah bahwa penempatan silinder pengganggu di depan returning blade pada konfigurasi 1 efektif meningkatkan nilai coefficient of power pada kecepatan 5 dan 7 m/s. penempatan silinder pengganggu di samping advancing blade pada konfigurasi 2 efektif meningkatkan nilai coefficient of power pada kecepatan 5 dan7 m/s. Sedangkan, penempatan silinder pengganggu di samping advancing blade dan di depan returning blade pada konfigurasi 3 tidak efektif meningkatkan coefficient of power.
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At this time the need for energy in Indonesia is increasing this is due to the increase in population in Indonesia is high, therefore Indonesia requires the use of new and renewable energy to replace fossil energy which is decreasing every year. One of the potential new and renewable energy sources is wind energy, for wind energy harvesting can be done with Savonius wind turbines, because Savonius wind turbines are in accordance with the characteristics of wind speeds in Indonesia which tend to be low. This type of turbine can operate at low rotation speeds and also has a simple construction, but this turbine has a lower efficiency level than other types of turbines. Therefore, research was conducted to improve the performance of the Savonius wind turbine by installing a circular cylinder in front of the returning blade and next to the advancing blade. The research was conducted with laboratory-scale experiments with three configurations. For the first configuration, the circular cylinder is placed in front of the returning blade with S/D = 1.4. In the second configuration, the circular cylinder is placed next to the advancing blade with Y/D = 1.42. In the third configuration, the circular cylinder is placed in front of the returning blade with S/D = 1.4 and next to the advancing blade with Y/D = 1.42. A Savonius turbine with height (H) = 295 mm, shaft diameter (e) = 19 mm, and blade diameter (D) = 165.2 mm and a circular cylinder with length (h) = 490 mm and diameter (d) = 88.18 mm or d/D = 0.5 were used. Wind speed variations are 5, 6, and 7 m/s. The wind flow from the axial fan is maintained with a honeycomb and the speed is regulated by adjusting the voltage of the voltage regulator. Wind speed is measured with an anemometer, static torque with a torquemeter, turbine rotation speed with a tachometer, and dynamic torque with a brake rope dynamometer. The results obtained from this study are that the placement of the disturbance cylinder in front of the returning blade in configuration 1 effectively increases the coefficient of power at speeds of 5 and 7 m/s. The placement of the disturbance cylinder next to the advancing blade in configuration 2 effectively increases the coefficient of power at speeds of 5 and 7 m/s. Meanwhile, the placement of the disturbance cylinder next to the advancing blade and in front of the returning blade in configuration 3 is not effective in increasing the coefficient of power.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | turbine moment coefficient, turbine power coefficient, turbine static torque coefficient, turbin Savonius, silinder sirkular turbine moment coefficient, turbine power coefficient, turbine static torque coefficient, Savonius turbine, circular cylinder |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Rafi Athaillah Putra |
| Date Deposited: | 21 Feb 2023 04:26 |
| Last Modified: | 21 Feb 2023 04:26 |
| URI: | http://repository.its.ac.id/id/eprint/97416 |
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