INVESTIGASI VARIASI SUSUNAN SUDU RUNNER PADA TURBIN KAPLAN 3 SUDU TERHADAP DAYA TURBIN

ALYA AWANIS ZAHARA, . (2021) INVESTIGASI VARIASI SUSUNAN SUDU RUNNER PADA TURBIN KAPLAN 3 SUDU TERHADAP DAYA TURBIN. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.

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Abstract

*ABSTRAK* Turbin Kaplan merupakan hal utama dalam perencanaan Pembangkit Listrik Tenaga Mikro Hidro (PLTMH). Daya dan efisiensi turbin Kaplan dipengaruhi besar oleh konstruksi runner turbin, sehingga desainnya harus diperhatikan dengan baik. Penelitian ini bertujuan untuk menginvestigasi susunan sudu runner pada turbin Kaplan tiga sudu dengan variasi tinggi sudu bagian dalam -5 mm, sejajar, +5 mm, dan +10 mm dari tinggi sudu bagian luar. Parameter desain meliputi tinggi kotor 5,25 m, debit air 0,125 m3/s, dan daya teoritis 6,4 kW. Profil sudu runner didapat dengan Airfoil NACA 2412, lalu desain 2D menggunakan AutoCAD. Desain 3D dan simulasi kekuatan material dilakukan menggunakan Inventor, sedangkan simulasi aliran menggunakan SolidWorks. Hasil simulasi perangkat lunak menunjukkan bahwa sudu runner varian RB-1 dengan susunan sudu bagian dalam yang tingginya dikurangi 5 mm dari sudu standar merupakan varian terbaik dibandingkan dengan tiga varian lainnya. Varian ini menghasilkan daya sebesar 5955.97 Watt dan efisiensi turbin 92.51% ketika turbin dalam keadaan berhenti sesaat, serta daya 5743.89 Watt dan efisiensi 89.22% ketika turbin berputar. *ABSTRACT* Kaplan turbine is the main thing in the planning of Micro Hydro Power (MHP) Plant. Kaplan turbine power and efficiency are greatly affected by the turbine runner construction, so the design must consider carefully. This study aims to investigate the runner blades arrangement on a three-blade Kaplan turbine with variations in the inner blade height -5 mm, parallel, +5 mm, and +10 mm from the outer blade height. The design parameters include the gross height is 5.25 m, water discharge of 0.125 m3/s, and the theoretical power of 6.4 kW. The runner blade profile obtains by Airfoil NACA 2412, then 2D design using AutoCAD. The 3D design and material strength simulation was carried by Inventor, while the flow simulation using SolidWorks software. The results of the software simulation show that the runner blade of the RB-1 variant with the inner blade arrangement which is reduced by 5 mm in height from the standard blade is the best variant compared to the other three variants. This variant produces 5955.97 Watts of power and 92.51% turbine efficiency when the turbine is in a momentary stop, as well as 5743.89 Watts of power and 89.22% efficiency when the turbine rotates.

Item Type: Thesis (Sarjana)
Additional Information: 1) Drs. H. Sirojuddin, M.T. ; 2) Dr. Ragil Sukarno, M.T.
Subjects: Teknologi dan Ilmu Terapan > Teknik Mesin, Mekanika Teknik
Divisions: FT > S1 Pendidikan Teknik Mesin
Depositing User: Users 12895 not found.
Date Deposited: 16 Sep 2021 00:39
Last Modified: 16 Sep 2021 00:39
URI: http://repository.unj.ac.id/id/eprint/20610

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