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All Journal Journal of Renewable Energy and Mechanics ELPOSYS: Jurnal Sistem Kelistrikan
Muhammad Syafiudin
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Automotive Engineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Potensi dan Perbandingan Turbin Crossflow dengan Turbin Kaplan PLTMH Wisata Telaga Muhammad Syafiudin; Resi Dwi Jayanti Kartika Sari; Rahman Arifuddin
Elposys: Jurnal Sistem Kelistrikan Vol. 12 No. 2 (2025): ELPOSYS vol. 12 no. 2 (2025)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v12i2.7221

Abstract

Microhydro power plants present a sustainable energy solution, especially for rural and remote areas like Telaga Jiwa in Sumber Porong Village, Malang. This study aims to evaluate the site's hydro energy potential and determine the most efficient turbine type between Kaplan and Crossflow for application in a small-scale MHP system. Field measurements of water discharge were conducted using the float-area method, while head elevation was obtained through Google Earth data combined with direct site verification. The analysis revealed an average discharge of 0.354 m³/s and an effective head of 9.35 meters, producing a theoretical power output of 24.13 kW. Based on performance analysis, the Kaplan turbine achieved an efficiency of 83%, slightly higher than the 80.5% efficiency of the Crossflow turbine, indicating Kaplan’s suitability for relatively stable flow and medium head conditions. The total system efficiency, accounting for turbine, generator, and transmission losses, reached 72%. This output is sufficient to provide electricity to approximately 86 households with an average daily consumption of 4.7 kWh. The study concludes that implementing an MHP at this location is technically feasible and can contribute significantly to rural electrification, reducing fossil fuel dependency, and supporting national energy resilience. The findings also offer a technical reference for future microhydro development in similar geographic and hydrological conditions.
ANALYSIS OF PENSTOCK DESIGN AND LOSSES USING DARCY-WEISBACH EQUATION IN A MICRO HYDRO POWER PLANT AT WISATA TELAGA RIVER, MALANG Muhammad Syafiudin; Rahman Arifuddin; Resi Dwi Jayanti Kartika Sari
Journal of Renewable Energy and Mechanics Vol. 8 No. 02 (2025): REM VOL 8 No 02 2025
Publisher : UIR PRESS

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Abstract

This study presents the design analysis and energy loss calculation of a penstock system for a micro hydro power plant at the Wisata Telaga River. The analysis includes the determination of pipe length using geometric estimation, selection of pipe diameter based on hydraulic parameters, and evaluation of energy losses using the Darcy-Weisbach equation. A 0.45 m HDPE pipe was selected, and a gross head of 9.35 m was considered. The calculated flow velocity was 2.67 m/s, yielding a major head loss of 0.19 m and a minor loss of 0.18 m. The effective head was 8.98 m, resulting in an estimated net power output of 31.22 kW with an efficiency of 96%. These findings demonstrate the technical feasibility and efficiency of the proposed penstock design for rural micro-hydro applications.
Co-Authors Rahman Arifuddin Resi Dwi Jayanti Kartika Sari