Hasan, Nadiah Fadilah (2023) Studi Eksperimen Pengaruh Silinder Sirkular Di Samping Sudu Advancing Dan Di Depan Sudu Returning Terhadap Peningkatan Kinerja Turbin Angin Savonius. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Peningkatan jumlah penduduk di Indonesia dan pertumbuhan sektor industri yang pesat mengakibatkan kebutuhan energi semakin meningkat juga. Indonesia masih menggunakan energi fosil yang jumlah produksinya menurun, sehingga perlu mencari alternatif lainnya yaitu dengan mengganti energi fosil menjadi energi terbarukan. Salah satu sumber energi terbarukan yang berpotensi di Indonesia adalah energi angin. Jenis turbin angin yang dapat digunakan dalam skala kecil dan sesuai dengan kondisi kecepatan angin di Indonesia adalah turbin angin Savonius. Turbin angin Savonius mampu berputar pada kecepatan rendah dan memiliki konstruksi yang sederhana. Namun, turbin ini memiliki efisiensi yang rendah dibandingkan dengan turbin angin lainnya. Oleh karena itu, penelitian ini dilakukan untuk mengetahui pengaruh pemasangan silinder sirkular di samping sudu advancing dan di depan sudu returning turbin terhadap peningkatan kinerja turbin angin Savonius. Studi eksperimen ini dilaksanakan dengan tiga macam konfigurasi. Pada konfigurasi pertama, silinder sirkular dipasang di depan sudu returning dengan Y/D sebesar 1,61. Pada konfigurasi kedua, silinder sirkular dipasang di samping sudu advancing dengan S/D sebesar 1,4. Pada konfigurasi ketiga, silinder sirkular dipasang di depan sudu returning dan di sisi samping sudu advancing. Turbin angin yang digunakan memiliki diameter sudu (D) = 165,2 mm, diameter poros (x) = 19 mm, dan tinggi (H) = 295 mm. Silinder sirkular yang digunakan memiliki diameter (d) = 88,18 mm atau d/D = 0,5 dan tinggi (h) = 490 mm. Penelitian ini dilakukan dengan variasi kecepatan angin sebesar 5,6, dan 7 m/s. Aliran angin dihasilkan oleh axial fan yang dijaga keseragamannya dengan peletakkan honeycomb di depannya dan diatur kecepatan angin dengan cara mengatur tegangannya menggunakan voltage regulator. Pengukuran kecepatan angin menggunakan anemometer, torsi statis menggunakan torquemeter, torsi dinamis menggunakan brake rope dynamometer, dan kecepatan putaran menggunakan tachometer. Berdasarkan hasil analisis data peforma turbin angin Savonius, didapatkan bahwa pemasangan silinder sirkular untuk konfigurasi 1, konfigurasi 2, dan konfigurasi 3 pada kecepatan angin 5 m/s mampu meningkatkan peforma turbin angin Savonius dengan peningkatan coefficient of power masing-masing sebesar 7,4%, 24,43%, dan 27,02%. Kemudian, pada kecepatan angin 7 m/s mampu meningkatkan peforma turbin angin Savonius dengan peningkatan coefficient of power masing-masing konfigurasi sebesar 5,66%, 17,30%, dan 18,90%. Selain itu, pemasangan silinder sirkular untuk ketiga konfigurasi pada kecepatan angin 6 m/s tidak efektif dalam meningkatkan peforma turbin angin Savonius dengan penurunan coefficient of power masing-masing sebesar 29,21%, 9,17%, dan 8,91%. Pemasangan silinder sirkular untuk ketiga konfigurasi pada seluruh kecepatan dapat meningkatkan kemampuan self-starting dari turbin angin Savonius
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The increasing population in Indonesia and the rapid growth of the industrial sector have resulted in increasing energy needs as well. Indonesia still uses fossil energy whose production has decreased, so it is necessary to look for other alternatives by replacing fossil energy with renewable energy. One of the potential renewable energy sources in Indonesia is wind energy. The type of wind turbine that can be used on a small scale and in accordance with wind speed conditions in Indonesia is the Savonius wind turbine. Savonius wind turbine is capable of rotating at low speeds and has a simple construction. However, this turbine has low efficiency compared to other wind turbines. Therefore, this study was conducted to determine the effect of installing circular cylinders beside the advancing blades and in front of the returning turbine blades on improving the performance of the Savonius wind turbine. This experimental study was carried out with three configurations. In the first configuration, a circular cylinder is installed in front of the returning blade with a Y/D ratio of 1.61. In the second configuration, a circular cylinder is installed beside the advancing blade with an S/D ratio of 1.4. In the third configuration, a circular cylinder is installed in front of the returning blade and beside the advancing blade. The wind turbine has a blade diameter (D) of 165.2 mm, a shaft diameter (x) of 19 mm, and a height (H) of 295 mm. The circular cylinder has a diameter (d) of 88.18 mm or d/D ratio of 0.5 and a height (h) of 490 mm. This research was conducted with variations in wind speed of 5.6, and 7 m/s. The wind flow is generated by the axial fan which is kept uniform by placing the honeycomb in front of it and adjusting the wind speed by adjusting the voltage using a voltage regulator. Measurement of wind speed using an anemometer, static torque using a torquemeter, dynamic torque using a brake rope dynamometer, and rotational speed using a tachometer. Based on the results of analysis of the Savonius wind turbine performance, it was found that the installation of circular cylinders for configuration 1, configuration 2, and configuration 3 at a wind speed of 5 m/s was able to increase the performance of the Savonius wind turbine with an increase in the coefficient of power each by 7.4% , 24.43%, and 27.02%. Then, at a wind speed of 7 m/s it can increase the performance of the Savonius wind turbine with an increase in the coefficient of power of each configuration by 5.66%, 17.30% and 18.90%. Furthermore, the installation of circular cylinders for the three configurations at a wind speed of 6 m/s was not effective in increasing the performance of the Savonius wind turbine with a decrease in the coefficient of power of 29.21%, 9.17% and 8.91%. Installation of circular cylinders for all three configurations at all speeds can increase the self-starting capability of the Savonius wind turbine
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Coefficient of Power, Coefficient of Moment, Coefficient of Static Torque, Tip Speed Ratio, Turbin Angin Savonius. Coefficient of Power, Coefficient of Moment, Coefficient of Static Torque, Tip Speed Ratio, Savonius Wind Turbine. |
| Subjects: | 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: | Nadiah Fadilah Hasan |
| Date Deposited: | 08 Feb 2023 03:16 |
| Last Modified: | 08 Feb 2023 03:16 |
| URI: | http://repository.its.ac.id/id/eprint/96424 |
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