Caprins, Selri (2025) Studi Eksperimental Tentang Pengaruh Sudut Deflektor Di Depan Sudu Returning Dan Advancing Terhadap Kinerja Turbin Angin Savonius “Studi Kasus untuk Deflektor dengan Kemiringan α = 60° ; β = 0°, 10°, 20°, 30°, 45°; Variasi Kecepatan Angin 5 dan 7 m/s”. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Indonesia, dengan populasi 282,49 juta jiwa pada Juni 2024, menghadapi peningkatan kebutuhan energi yang signifikan. Ketergantungan pada energi fosil yang cadangannya diperkirakan hanya cukup untuk 9,5 tahun mendorong pengembangan Energi Baru Terbarukan (EBT), termasuk energi angin. Turbin angin Savonius, yang unggul dalam beroperasi pada kecepatan angin rendah, memiliki efisiensi yang terbatas. Penelitian ini bertujuan meningkatkan efisiensi turbin Savonius melalui pemasangan dua deflektor, di depan sudu returning dan di depan sudu advancing, guna memaksimalkan selisih gaya drag antar sudu dan menghasilkan torsi positif yang lebih besar.Pada penelitian ini dilakukan percobaan dengan menempatkan deflektor di depan sudu returning dan advancing dengan sudut konfigurasi (α) tetap 60°, dan pada sudu returning memiliki sudut konfigurasi (β) 0°, 10°, 20°, 30°, dan 45°. Pengujian dilakukan pada kecepatan angin 5 m/s dan 7 m/s. Alat yang digunakan meliputi axial fan, anemometer, honeycomb, torquemeter, voltage regulator dan brake dynamometer. Penelitian ini menunjukkan bahwa konfigurasi sudut α = 60° dan β = 30° memberikan peningkatan nilai Coefficient of Power (CoP) yang paling optimal, dengan nilai CoP mencapai 0,12 pada kecepatan angin 5 m/s. Pada kecepatan angin 7 m/s, konfigurasi ini tetap menghasilkan performa terbaik dengan nilai CoP 0,10, lebih tinggi dibandingkan dengan konfigurasi turbin konvensional. Selain itu, konfigurasi ini juga menghasilkan peningkatan Coefficient of Moment (CM) tertinggi, yaitu sebesar 0,382 pada kecepatan angin 5 m/s. Pada kecepatan angin 7 m/s, nilai CM tertinggi tercatat sebesar 0,345, yang juga lebih baik dibandingkan dengan turbin konvensional. Penambahan deflektor di depan sudu returning dan sudu advancing pada setiap konfigurasi yang diuji berkontribusi terhadap peningkatan kemampuan self-starting turbin angin Savonius dibandingkan dengan turbin konvensional. Meskipun secara teori kecepatan angin yang lebih tinggi membawa energi kinetik lebih besar, hasil penelitian menunjukkan bahwa pada 5 m/s aliran angin lebih stabil dan terarah sehingga deflektor bekerja lebih optimal, sedangkan pada 7 m/s aliran yang lebih kuat cenderung menimbulkan gangguan aliran. Hasil penelitian ini menunjukkan potensi besar dalam optimalisasi desain turbin angin Savonius untuk meningkatkan efisiensi pemanfaatan energi angin, khususnya di Indonesia.
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Indonesia, with a population of 282.49 million in June 2024, faces a significant increase in energy demand. Dependence on fossil fuels whose reserves are estimated to be sufficient for only 9.5 years is driving the development of renewable energy, including wind energy. Savonius wind turbines, which excel in operating at low wind speeds, have limited efficiency. This research aims to improve the efficiency of the Savonius turbine through the installation of two deflectors, one in front of the returning blade and one beside the advancing blade, in order to maximise the drag force difference between the blades and generate greater positive torque.The research used an experimental method with variations in deflector angle. The deflector angle on the advancing blade is fixed at 60°, and on the returning blade it is varied at 0°, 10°, 20°, 30°, and 45°. Tests were carried out at wind speeds of 5 m/s and 7 m/s. The tools used include axial fan, anemometer, honeycomb, torquemeter, voltage regulator and brake dynamometer. This research finds that the angular configuration of α = 60° and β = 30° provides the most optimal increase in Coefficient of Power (CoP) value, with CoP value reaching 0.10 at 5 m/s wind speed. At a wind speed of 7 m/s, this configuration still produces the best performance with a CoP value of 0.10, higher than the conventional turbine configuration. In addition, this configuration also produces the highest increase in Coefficient of Moment (CM), which is 0.354 at a wind speed of 5 m/s. At a wind speed of 7 m/s, the highest CM value was recorded at 0.345, which is also better than the conventional turbine. The addition of deflectors in front of the returning and advancing blades in each configuration tested contributed to the improved self-starting ability of the Savonius wind turbine compared to the conventional turbine. Although higher wind speeds theoretically carry more kinetic energy, the results show that at 5 m/s the wind flow is more stable and directional so that the deflector works more optimally, whereas at 7 m/s the stronger flow tends to cause flow disturbance. The results of this study show great potential in optimising the design of Savonius wind turbines to increase the efficiency of wind energy utilisation, especially in Indonesia.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Turbin Angin Savonius, Deflektor, Coefficient of Power, Coefficient of Moment Savonius Wind Turbine, Deflector, Coefficient of Power, Coefficient of Moment |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ266 Turbines. Turbomachines (General) T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TJ Mechanical engineering and machinery > TJ820 Wind power T Technology > TJ Mechanical engineering and machinery > TJ828 Wind turbines T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Selri Caprins |
| Date Deposited: | 01 Aug 2025 09:46 |
| Last Modified: | 01 Aug 2025 09:46 |
| URI: | http://repository.its.ac.id/id/eprint/126085 |
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