Priharnanda, Ilham (2026) Studi Numerik Empat Turbin Savonius Hidrokinetik Tersusun In-Line Square Co-Rotating Dalam Pengaruh Jarak Terhadap Dinding Kanal Air Pendingin PLTU Paiton. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penggunaan energi fosil secara besar-besaran pada saat ini dapat mengancam ketersediaan sumber daya energi di masa depan. Sehingga diperlukan adanya pengembangan energi terbarukan sebagai energi alternatif dan solusi jangka panjang untuk mengatasi krisis energi yang terjadi di seluruh dunia. Energi terbarukan dapat meminimalisir dampak negatif terhadap lingkungan. Selain itu, energi terbarukan juga menawarkan solusi untuk mengurangi ketergantungan manusia pada bahan bakar fosil dimana energi ini dihasilkan dari sumber daya alam seperti air. Energi air juga dapat dimanfaatkan untuk menggerakkan turbin hidrokinetik Savonius. Sehingga penelitian ini akan melakukan studi numerik Computational Fluid Dynamics pada turbin air Savonius dengan konfigurasi empat turbin disusun secara inline square dan berputar searah menggunakan software Ansys Fluent. Turbin ini terletak pada kanal PLTU Paiton yang memiliki panjang 2 km, lebar 15 m, dan kedalaman 10 m. Jenis fluida yang digunakan yaitu air dengan kecepatan aliran 2 m/s. Variasi yang digunakan pada penelitian ini yaitu jarak longitudinal antar turbin (T) sebesar 2.000 mm dan 34.680 mm, serta jarak transversal antar turbin (S) sebesar 2.000 mm, 3.000 mm, 5.000 mm, 8.000 mm, 13,750 mm. Model turbulen yang digunakan pada penelitian ini yaitu k-ε Realizable. Hasil penelitian menunjukkan bahwa interaksi turbin sangat kuat pada jarak antar turbin terdekat. Hal itu menyebabkan kinerja dari keseluruhan turbin saling berpengaruh. Seiring dengan bertambahnya jarak longitudinal atau transversal, interaksi turbin semakin berkurang dimana pada jarak longitudinal (T) = 17340 mm dan jarak transversal (S) = 8000 mm, interaksi turbin mulai stabil. Temuan ini mengindikasikan bahwa penempatan jarak antar turbin terlalu dekat tidak selalu memberikan keuntungan terhadap peningkatan kinerja.
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The current massive use of fossil fuels can be threaten availability of energy resources in the future. Therefore, the development of renewable energy is necessary as an alternative energy and long-term solution to prevent energy crisis that happened in the word. Renewable energy can minimize negative impact on the environment. Furthermore, it can offers a solution to reduce human dependence using fossil fuels that it can be generated from natural resources such as water. Water energy can too be harnessed to power of Savonius hydrokinetic turbines. So, this study will conduct numerical study of Computational Fluid Dynamics in Savonius water turbines with a configuration of four turbines that arranged on inline square and same rotating direction using software Ansys Fluent. It is located in channel of Paiton Electric Steam Power Plant which has a length as 2 km, a width as 15 m and the depth as 10 m. The type fluid used is water that it can be flow with velocity as 2 m/s. The variation used in this study are longitudinal distance of turbines (T) as 2.000 mm, 34.680 mm and transversal distance of turbines as 2.000 mm, 3.000 mm, 5.000 mm, 8.000 mm, 13,750 mm. Turbulence modelling used in present study is k-ε Realizable. The results of this study indicate that the interaction of every turbine is very strong at the closest distance. This causes the overall performance of turbines can influence each other. As longitudinal or transversal distance increases, the interaction of turbines was decreased where at a longitudinal distance as 17.340 mm and tranversal distance as 8.000 mm, the turbines interaction was stabilized. This finding indicates that placing the distance between turbines too close does not always provide benefits in terms of improving performance.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Turbin hidrokinetik Savonius, simulasi numerik, inline square, variasi jarak, pembangkit listrik |
| Subjects: | Q Science > QC Physics Q Science > QC Physics > QC151 Fluid dynamics |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Ilham Priharnanda |
| Date Deposited: | 04 Aug 2026 07:53 |
| Last Modified: | 04 Aug 2026 07:53 |
| URI: | http://repository.its.ac.id/id/eprint/143689 |
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