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STUDI PERBAIKAN TURBIN FRANCIS DAN ANALISIS EFISIENSI BERDASARKAN VARIASI BUKAAN KATUP

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Penilaian

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The Francis turbine is one of the most widely used reaction turbines in hydropower plants due to its high efficiency in converting water potential energy into mechanical energy. However, turbine efficiency can decrease due to component damage and suboptimal valve opening settings. Such conditions occurred in the laboratory-scale Francis turbine at Sriwijaya University, making system repairs and performance evaluation necessary. This study aims to analyze the effect of valve opening variations on the efficiency of the Francis turbine after repair. The repair process included replacing water pump components, fixing pipe connections, and calibrating the pressure gauge and dynamometer. Experimental testing was conducted with three valve opening variations: 1/3, 2/3, and full. The observed parameters included turbine speed, water discharge, torque, mechanical power, hydraulic power, and efficiency. The results indicated that efficiency increased with larger valve openings. At 1/3 opening, efficiency was 35% with mechanical power of 149 W; at 2/3 opening, 54% with 245 W; and at full opening, efficiency reached 61% with 352.5 W. These values were lower compared to the Francis turbine at Brawijaya University, which achieved up to 77% efficiency. Thus, the repair successfully restored turbine function, and valve opening variation significantly affected efficiency, with the optimal condition obtained at full opening.

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2507005985	T184327	T1843272025	Central Library (Reference)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T1843272025

Publisher

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

Collation

xv, 98 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

621.213 07

Content Type

Text

Media Type

unmediated

Carrier Type

-

Edition

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Subject(s)

Prodi Teknik Mesin
Turbin air – Turbin Francis

Specific Detail Info

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Statement of Responsibility

TUTI

Other version/related

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