Skripsi

REKAYASA DALAM KONTEKS PERBAIKAN TURBIN AIR FRANCIS DAN UJI STUDI EKSPERIMENTAL DENGAN VARIASI KECEPATAN PUTARAN

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Francis turbines are one of the most widely used reaction turbines in hydroelectric power plants (HPPs) due to their high efficiency and ability to operate at varying heads and moderate discharge rates. However, in laboratory-scale installations, turbine performance can decline due to component damage and inaccurate measuring instruments. This study aims to repair a laboratory-scale Francis turbine at Sriwijaya University and analyze the effect of rotational speed variations on turbine efficiency. The repair process includes replacing the electric motor, pump seal, pipe fittings, and recalibrating the measuring instruments. An Arduino Uno-based tachometer was also developed for real-time rotational speed measurement. Experimental tests were conducted with varying rotational speeds using a Prony Brake system. The parameters analyzed included discharge, torque, mechanical power, hydraulic power, and turbine efficiency. The results showed that the maximum turbine efficiency after repair was achieved at a rotational speed of 1506 rpm with an efficiency of 73%. A comparison between the Arduino-based tachometer and the conventional tachometer showed a measurement error of less than 2%. These results indicate that the turbine repair and the use of an Arduino-based monitoring system successfully improved the performance and measurement accuracy of the Francis turbine.

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Detail Information

Series Title

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Call Number

T1895392025

Publisher

Indralaya : Prodi Teknik Mesin, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xxix, 89 hlm.; ilus.; tab.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

621.240 7

Content Type

Text

Media Type

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Carrier Type

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Edition

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Subject(s)

Turbin Air
Prodi Teknik Mesin

Specific Detail Info

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Statement of Responsibility

MI

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