Studi Eksperimental Pengaruh Sudut Kemiringan Guide Vane dan Jarak Guide Vane terhadap Runner Propeller pada Gravitational Water Vortex Power Plant (GWVPP)

Yaqien, Muhammad Fajrul (2023) Studi Eksperimental Pengaruh Sudut Kemiringan Guide Vane dan Jarak Guide Vane terhadap Runner Propeller pada Gravitational Water Vortex Power Plant (GWVPP). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Gravitational Water Vortex Power Plant (GWVPP) menjadi salah satu jenis pembangkit listrik tenaga air yang dapat mengonversi energi air menjadi energi listrik dengan daya keluaran 5 kW – 100 kW dan dapat bekerja pada head yang rendah. Beberapa komponen utama dari GWVPP adalah basin, runner, dan guide vane. Pada penelitian ini dilakukan analisis terkait pengaruh sudut kemiringan dari guide vane dan jarak dari guide vane terhadap runner dengan studi eksperimental. Data yang dianalisis berupa torsi, daya mekanik runner, dan efisiensi sebagai data kuantitatif untuk menilai performansi GWVPP terbaik. Dilakukan studi eksperimental dengan variasi sudut kemiringan guide vane 20°, 30°, 40°, dan 50° yang juga diberi variasi jarak ke runner sejauh 1D (12 cm), 1.25D (15 cm), dan 1.5D (18 cm). Berdasarkan studi eksperimental yang telah dilakukan, didapatkan bahwa efisiensi tertinggi runner senilai 36.32% dengan konfigurasi sudut kemiringan guide vane 30° dan pada jarak guide vane terhadap runner 1.5D (18 cm). Sudut kemiringan yang tidak sesuai memungkinkan terjadinya adanya flow separation yang dapat mengurangi performansi dari runner. Guide vane dengan jarak ke runner sejauh 1.5D menghasilkan daya mekanik dan efisiensi runner tertinggi karena tidak terjadi penutupan aliran air akibat adanya guide vane. Geometri basin yang semakin mengecil menyebabkan adanya blockage effect yang dapat terjadi apabila guide vane diposisikan terlalu ke bawah.
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Gravitational Water Vortex Power Plant (GWVPP) is a type of hydroelectric power plant that can convert water energy into electrical energy with an output power of 5 kW – 100 kW and can work at a low head. Some of the main components of the GWVPP are basins, runners and guide vanes. In this study, an analysis was carried out regarding the influence of the inclination angle of the guide vane and the distance from the guide vane to the runner with an experimental study. The data analyzed were torque, runner mechanical power, and efficiency as quantitative data to assess the best GWVPP performance. Experimental studies were carried out with variations in the angle of inclination of the guide vane 20°, 30°, 40°, and 50° which were also given variations in the distance to the runner as far as 1D (12 cm), 1.25D (15 cm), and 1.5D (18 cm). Based on the experimental studies that have been carried out, it was found that the highest runner efficiency was 36.32% with the configuration of the guide vane tilt angle of 30° and at the distance of the guide vane to the runner of 1.5D (18 cm). The inclination angle that is not suitable allows for flow separation which can reduce the performance of the runner. The guide vane with a distance of 1.5D to the runner produces the highest mechanical power and runner efficiency because there is no blockage of the water flow due to the guide vane. The smaller the geometry of the basin causes a blockage effect that can occur if the guide vane is positioned too downward.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Aliran Vortex, Guide Vane, Gravitational Water Vortex Power Plant (GWVPP), Jarak Guide Vane ke Runner, Runner Propeller, Sudut Kemiringan Guide Vane, Guide Vane, Gravitational Water Vortex Power Plant (GWVPP), Guide Vane Tilt Angle, Guide Vane Distance on Runner, Vortex Flow
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ870 Hydraulic turbines.
Divisions:	Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Muhammad Fajrul Yaqien
Date Deposited:	21 Jul 2023 02:50
Last Modified:	21 Jul 2023 02:50
URI:	http://repository.its.ac.id/id/eprint/98790

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