Tawakkal, Mohammad Anas (2023) Studi Eksperimen Kinerja Turbin Angin Savonius Dengan Instalasi Silinder Sirkular Di Depan Sudu Returbing Dan Di Samping Sudu Advancing. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Di masa sekarang segala jenis bahan bakar fosil kian menipis ketersediaannya, namun kebutuhan energi kian meningkat beriringan dengan laju pertumbuhan penduduk yang kian meningkat pula. Sehingga semua para pemangku kepentingan diharuskan memutar otak untuk mendapatkan sumber energi yang baru. Sesuai dengan karakteristiknya sebagai sumber energi terbarukan, angin adalah energi yang murah dalam operasionalnya dan relatif mudah untuk memanennya. Namun kecepatan angin yang rendah di Indonesia menjadi hambatan tersendiri. Rata rata kecepatan maksimal angin di indonesia terbatas di kecepatan 7 m/s. Salah satu jenis turbin angin yang banyak digunakan untuk memanfaatkan angin kecepatan rendah adalah turbin angin Savonius, tetapi memiliki efisiensi yang lebih rendah dibandingkan jenis turbin lain. Oleh karena itu, dilakukan penelitian untuk meningkatkan performa turbin angin Savonius dengan memasang silinder sirkular di depan sudu returning turbin dan di samping sudu advancing. Penelitian dilakukan dengan eksperimen skala laboratorium dengan tiga macam konfigurasi. Pada 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 = 1,32. Pada konfigurasi ketiga silinder sirkular diletakkan di depan sudu returning dengan S/D = 1,4 dan di samping sudu advancing dengan Y/D = 1,32. 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 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. Berdasarkan hasil analisis data performa turbin angin Savonius, pemasangan silinder sirkular dengan konfigurasi pertama pada jarak S/D = 1,4 memberikan peningkatan signifikan terhadap coefficient of power dan coefficient of moment turbin pada kecepatan angin 5 m/s dan 7 m/s sekaligus mampu meningkatkan kemampuan self-starting turbin. Pemasangan turbin konfigurasi kedua pada jarak Y/D = 1,32 meningkatkan coefficient of power dan coefficient of moment turbin pada kecepatan 5 m/s sekaligus mampu meningkatkan kemampuan self-starting turbin. Pemasangan turbin konfigurasi ketiga dengan jarak S/D = 1,4 dan jarak Y/D = 1,32 meningkatkan coefficient of power dan coefficient of moment turbin pada kecepatan 5 m/s dan 7 m/s sekaligus mampu meningkatkan kemampuan self-starting turbin
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At present, the availability of all types of fossil fuels is decreasing, but the need for energy is increasing along with the rate of population growth which is also increasing. So that all stakeholders are required to rack their brains to find new energy sources. In accordance with its characteristics as a renewable energy source, wind is energy that is cheap to operate and relatively easy to harvest. However, the low wind speed in Indonesia is a separate obstacle. The average maximum wind speed in Indonesia is limited to 7 m/s. One type of wind turbine that is widely used to utilize low speed wind is the Savonius wind turbine, but has a lower efficiency than other types of turbines. Therefore, research was carried out to improve the performance of the Savonius wind turbine by installing a circular cylinder in front of the returning turbine blades and on the side of the advancing blades. The research was conducted with laboratory scale experiments with three different configurations. In the first configuration, the circular cylinder is placed in front of the returning vane with S/D = 1.4. In the second configuration, the circular cylinder is placed next to the advancing blade with Y/D = 1.32. 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 = 1.32. Savonius turbine with height (H) = 295 mm, shaft diameter (e) = 19 mm, and blade diameter (D) = 165.2 mm and circular cylinder with length (h) = 490 mm and diameter (d) = 88 .18 mm or d/D = 0.5. Wind speed is varied by 5, 6, and 7 m/s. The wind flow from the axial fan is kept uniform with honeycomb and the speed is regulated by adjusting the voltage from the voltage regulator. Wind speed was measured with an anemometer, static torque with a torquemeter, turbine rotation speed with a tachometer, and dynamic torque with a brake rope dynamometer. Based on the results of analysis of the performance data of the Savonius wind turbine, installation of a circular cylinder with the first configuration at a distance of S/D = 1.4 provides a significant increase in the coefficient of power and coefficient of moment of the turbine at wind speeds of 5 m/s and 7 m/s while simultaneously being able to improve turbine self-starting capability. Installing the second turbine configuration at a distance of Y/D = 1.32 increases the coefficient of power and coefficient of moment of the turbine at a speed of 5 m/s as well as being able to increase the self-starting ability of the turbine. The installation of the third turbine configuration with a distance of S/D = 1.4 and a distance of Y/D = 1.32 increases the coefficient of power and coefficient of moment of the turbine at speeds of 5 m/s and 7 m/s as well as being able to increase the self-starting ability of the turbine
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Turbine Coefficient of Moment, Turbine Coefficient of Power, Turbine Coefficient of Static Torque, Turbin Savonius, Silinder Sirkular |
| 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: | Mohammad Anas Tawakkal |
| Date Deposited: | 13 Feb 2023 06:53 |
| Last Modified: | 13 Feb 2023 06:53 |
| URI: | http://repository.its.ac.id/id/eprint/97132 |
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