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puspawan angky
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Bengkulu
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Transportation

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Analisis Kinerja Turbin Francis Horizontal Terhadap Variasi Debit Pada Sistem Pltmh Aek Sigeaon (The Performance Analysis Of Horizontal Francis Turbine To Discharge Variations In The Aek Sigeaon Micro Power Plant System: Analisis Kinerja Turbin Francis Horizontal Terhadap Variasi Debit Pada Sistem Pltmh Aek Sigeaon (The Performance Analysis Of Horizontal Francis Turbine To Discharge Variations In The Aek Sigeaon Micro Power Plant System puspawan angky; Hotmariana R Hutasoit; Nurul Iman Supardi; Jodi Trinaldi Manalu
Teknosia Vol. 19 No. 02 (2025): Vol. 19 No. 02 (2025): December 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i02.44667

Abstract

Micro hydro power plant (PLTMH) is a small-scale power plant that uses water in small discharges as its driving source. Water that can be utilized in PLTMH technology can come from irrigation channels, rivers or natural waterfalls. In general, PLTMH has three main components, namely water, water turbines, and generators. The purpose of this study is to analyze the effect of variations in water discharge on the performance of horizontal francis turbines in the Aek Sigeaon Micro Hydro Power Plant (PLTMH) system. The main focus of this study is to observe changes in input power, output power, and turbine efficiency as a result of variations in water discharge that occur in the field. Data collection was carried out using a SCADA monitoring system to obtain operational parameters in real time such as water discharge, pressure, current, and voltage. The results showed that an increase in water discharge generally caused an increase in input and output power, but was not always directly proportional to turbine efficiency. The highest turbine efficiency of 77.8% was obtained at a water discharge of 3.48 m³/s, while the lowest efficiency of 54.65% occurred at a water discharge of 6.01 m³/s. This shows that the horizontal Francis turbine works more efficiently at low to medium discharge.
PREVENTIVE MAINTENANCE OF BREAKER MACHINE TO PREVENT DAMAGE AND IMPROVE DURABILITY AT PT. BUKIT ANGKASA MAKMUR (BAM) CENTRAL BENGKULU REGENCY puspawan angky; Zuliantoni; Ahmad Rifki Abipraya
Teknosia Vol. 20 No. 1 (2026): Vol. 20 No. 01 (2026): June 2026
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v20i1.43242

Abstract

This research was conducted at PT. Bukit Angkasa Makmur, a company engaged in the processing of natural rubber into crumb rubber. The research focus of this activity is the implementation of preventive maintenance on the breaker machine, which is used in the initial stage of rubber processing. Common issues such as bearing wear, dull rotor and stationary blades, and v-belt damage often result in operational disruptions. Therefore, an analysis and scheduled implementation of preventive maintenance was conducted monthly during the third and fourth weeks from October to December 2024. The observations showed that preventive maintenance significantly improved machine reliability, extended service life, and reduced repair costs. With well-planned maintenance, the company can ensure smoother production processes and greater operational efficiency.
Co-Authors Ahmad Rifki Abipraya Hotmariana R Hutasoit Jodi Trinaldi Manalu Nurul Iman Supardi Zuliantoni