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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro JURNAL PENGABDIAN KEPADA MASYARAKAT ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal SOLMA Jurnal Rekayasa Material, Manufaktur & Energi RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Jurnal Review Pendidikan dan Pengajaran (JRPP) Andalasian International Journal of Applied Science, Engineering, and Technology International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Jurnal Teknik Elektro dan Komputer Jurnal Polimesin SNTE
Harahap, Partaonan
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Journal : Jurnal Rekayasa Material, Manufaktur

 1 
Analisis Aliran Daya Pembangkit Hybrid (Photovoltaic/Diesel) Pada Menara Mercusuar Di Pulau Pandang ., Rimbawati; Mahendra, Yusril Ihza; Riandra, Juli; Harahap, Partaonan
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.14224

Abstract

Study of power flow analysis to obtain information about the flow of power or voltage in an electric power system. As time goes by and the number of tourists on Pandang Island, especially in the development and change sector, will also increase, the amount of burden incurred will also increase, so that a good initial design is no longer suitable for the current load. For this reason, it is necessary to analyze the power flow in order to determine the condition of the electric power system. The benefits of this research are also for planning evaluation if there will be additional burden innovations. In this study, ETAP Power Station 19.0 software was used using Newton Raphson for power flow simulation. The results obtained in the Etap simulation are 37% generating load with a total active power of 10.35 KW, reactive power of 6.85 Kvar, and apparent power of 12.42 KVA. This research also increases the load by 4,800 watts, where the photovoltaic generator must increase the photovoltaic capacity from the previous 10.26 kw to 13.29 kw, therefore solar cell panels will be added as many as 8 panels.
Dampak Variasi Torsi Alternator terhadap Kinerja Inverter dan Kualitas Daya Fajar, Aidil; Harahap, Partaonan; Oktrialdi, Benny; Amirrudin, Arfis
Rekayasa Material, Manufaktur dan Energi Vol 8, No 2: JULI 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i2.25557

Abstract

The alternator is a crucial component in electrical systems that functions to convert mechanical energy into electrical energy. The torque applied to the alternator shaft significantly affects its performance. This study investigates the impact of torque variations on the performance of an inverter that receives power supply from the alternator. An experimental method was employed to test the alternator-inverter system under varying loads. The measured data includes voltage and current at the inverter output, as well as different torque levels used to drive the inverter. The results indicate that low torque produces unstable DC voltage. In the tests, the alternator drive operated at a speed of 1057 RPM, an angular velocity of 110.5 rad/s, and a torque of 9.049 Nm, resulting in the inverter being unable to provide ideal AC output. Conversely, higher and stable torque allows the inverter to generate AC voltage with a constant frequency close to its nominal value. These findings emphasize that the alternator's torque directly influences the stability and efficiency of the inverter. The main conclusion of this research is that the quality of power produced by the inverter is significantly affected by the stability of the alternator's torque, with the alternator output power being 1000 Watts and an efficiency of 90% or 0.9. Therefore, torque control is a critical component in the design of power supply systems reliant on alternators.  
Perancangan Pembangkit Listrik Tenaga Biogas Kotoran Sapi Di Desa Tanjung Baringin Simarulak Kabupaten Padang Lawas ., Rimbawati; Harahap, Partaonan; Mangopo, Dultudes
Rekayasa Material, Manufaktur dan Energi Vol 8, No 2: JULI 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i2.25276

Abstract

This study explores the feasibility of developing a Biogas Power Plant (PLTBg) utilizing cow manure as a renewable energy source in Tanjung Baringin Simarulak Village, Padang Lawas Regency, North Sumatra. The site, which hosts a government-managed cattle breeding center, generates a significant amount of organic waste that poses environmental challenges. Given the increasing demand for clean energy and the need to mitigate greenhouse gas emissions, biogas emerges as a promising alternative. The research adopts a descriptive approach with feasibility analysis, incorporating technical, financial, environmental, and social perspectives. Field observations and interviews with stakeholders, combined with secondary data, form the basis for evaluating project viability. The study estimates daily biogas production of approximately 75 m³ from 100 cows, which can generate around 120 kWh of electricity per day. Financial analysis shows a positive Net Present Value (NPV), an Internal Rate of Return (IRR) of 17.5%, a Profitability Index (PI) of 1.39, and a Payback Period (PBP) of 4.1 years.The findings indicate that the project is technically and economically feasible. It also offers environmental benefits by reducing methane emissions and turning waste into valuable energy and fertilizer. Socially, the project has the potential to reduce household energy costs and create new job opportunities in rural communities. Therefore, this biogas project is strongly recommended as a sustainable model for renewable energy development in Indonesia’s agricultural regions.
Co-Authors Ade Faisal, Ph.D Affandi Alam, Hermansyah Amirrudin, Arfis Amiruddin, Arfis Anri Naldi Ariadi Hazmi Arya Rudi Nasution Asfiati, Sri Azhar, Anang Anas Bagastira, Raihan Balisrannislam, Balisrannislam Benny Oktrialdi Evalina, Noorly Fajar, Aidil Husai Siregar, Alwi Iman, Mujhirul Mangopo, Dultudes Muhammad Imran Hamid Oktrialdi, Benny Rahmatullah Rahmatullah Riandra, Juli Rimbawati RITONGA, RAHMAT Samosir, Hasrat Efendi Siregar, Chandra A Siregar, Munawar Alfansury Siregar, Rahmad Fauzi Siregar, Rahmat Fauzi Siregar, Zulkifli Sudirman Lubis Suhelmi,, Togar Timoteus Gultom, Tanjung, Wira Agus Lexmana Widya, Helma Yani, Indra Yusril Ihza Mahendra