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Implementation of 3000-watt inverter as a source of electrical energy in solar power plants Partaonan Harahap; Noorly Evalina; Faisal Irsan Pasaribu; Rimbawati Rimbawati; Benny Oktrialdi; Rahmatullah Rahmatullah; Munawar Alfansury Siregar
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.3626

In industry, an inverter is a tool/component for adjusting the speed of an electric motor. By using an inverter for electric motor purposes, it becomes a variable speed, whereas the speed can be changed or adjusted as needed. The method used in this study is an experimental research method, namely designing and measuring the system under study. Measurements are made for non-electrical quantities, namely the inverter of the solar module which is generated by the intensity of sunlight hitting the surface of the solar cell. Measurements are also made for electrical parameters such as current, voltage, power factor, and power. Based on the data obtained from all the tests that have been carried out, the system output voltage cannot reach the expected 220 Volts. Because changes in load affect the output voltage of the system were occurred, as the load of 60 W/220V is added, the output voltage drops to 740.5 Volts. As the load is reduced by 60W/220 V, the output voltage increases by 786.9 Volts, within the average inverter efficiency of 77%.

POTENSI LIMBAH CANGKANG KERANG SEBAGAI KATALIS HETEROGEN UNTUK PEMBUATAN BIODIESEL Sebayang, Abdi Hanra; Pulungan, Muhammad Anhar; Siahaan, Sihar; Benu, Siti Maretia; Ibrahim, Husin; Siregar, Munawar Alfansury; Silitonga, Arridina Susan
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1428

Biodiesel is a potential energy source that has attracted attention recently because it can be produced from renewable energy sources and produces low pollutants. Biodiesel is produced by transesterifying edible or non-edible vegetable oils using a catalyst. Homogeneous catalytic processes have disadvantages, such as the catalyst residue cannot be reused. Therefore, heterogeneous or solid catalysts are used, which can be easily separated from the reaction mixture by filtration and reused. A waste cockle shell can be used as a green base catalyst to synthesize waste cooking oil into methyl ester (WCME). The free fatty acid content of used cooking oil (2.19% wt.) was initially reduced to 0.11% wt., using a methanol-oil ratio of 6:1, waste cockle shell 2% wt., reaction time 60 minutes and temperature 60 oC. The effectiveness of the developed waste cockle shell contains high CaO. The results of this study indicated the potential of clam waste cockle shells and used cooking oil as a source of raw materials available in the community for biodiesel production.

Sistem Pembangkit Listrik Tenaga Surya (PLTS) menggunakan Teknologi Maximum Power Point Tracking (MPPT) dan Zeta Converter HARAHAP, PARTAONAN; RITONGA, RAHMAT; RIMBAWATI, RIMBAWATI; OKTRIALDI, BENNY; SIREGAR, MUNAWAR ALFANSURY; LUBIS, SUDIRMAN; SIREGAR, CHANDRA A
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 12, No 2: Published April 2024
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v12i2.405

ABSTRAKSistem kendali MPPT hendak mengendalikan penciptaan serta penyimpanan energi sistem PV menggunakan DC-DC boost converter. Perancangan dan pembuatan alat zeta converter berhasil dilakukan dengan menggunakan mikrokontroller arduino untuk menaikkan tingkat effisiensi daya keluaran pada PLTS berhasil dilakukan dengan baik. Keluaran tegangan serta arus yang dihasilkan oleh MPPT dengan memakai zeta converter relatif efektif dan effisien dibuktikan dengan daya keluaran PLTS yang memiliki tingkat effisiensi yang stabil setiap pengambilan data, dan tingkat effisiensi yang dihasilkan juga relatif tinggi yaitu 92%. Perhitungan yang dilakukan adalah dengan cara mengambil data arus dan tegangan pada MPPT tanpa zeta converter dan dengan zeta converter yang telah dihitung melalui perhitungan duty cycle. Adapun nilai duty cycle yang dihasilkan adalah 0,243 atau 24% dan arus input maximal yang dihasilkan setelah perhitungan adalah 5,34 Ampere.Kata Kunci: PLTS, MPPT, Zeta Converter, Arduino ABSTRACTUsing a DC-DC boost converter, the MPPT management system will manage the generation and storage of PV system energy. The zeta converter was designed and manufactured successfully utilizing an Arduino microcontroller to boost the efficiency level of output power in PLTS. The voltage and current output produced by MPPT utilizing a zeta converter is relatively effective and efficient. The voltage and current output produced by MPPT using a zeta converter is relatively effective and efficient, as proven by the PLTS output power which has a stable efficiency level every time data is taken, and the resulting efficiency level is also relatively high, namely 92%. The calculations carried out are by taking current and voltage data on the MPPT without a zeta converter and with a zeta converter which has been calculated through duty cycle calculations. Meanwhile, the resulting duty cycle value is 0.243 or 24% and the maximum input current produced after calculation is 5.34 Amperes.Keywords: PLTS, MPPT, Zeta Converter, Arduino

Pengaruh Variasi Sudut Keluar Impeler Terhadap Performance Pompa Sentrifugal Siregar, Munawar Alfansury; Damanik, wawan Septiawan
Rekayasa Material, Manufaktur dan Energi Vol 3, No 2: September 2020
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v3i2.5278

The ability of a pump to drain or move a certain amount of fluida / fluida that comes out through the pressure side of the pump in units of time volume is also called the capacity of a pump. Meanwhile, the pump head is the energy per unit weight that must be provided to flow the planned amount of liquid according to the pump installation conditions. A centrifugal pump is a pump that moves liquid by utilizing the centrifugal force generated by the impeller ratation. The results of data calculations and graphic analysis on the effect of variations in the impeller entry angle on the impeller with exit angle (?2) = 250,standard pump impeller,and impeller with exit angle (?2) = 350 on the performance of the centrifugal pump can be concluded, namely the performance value of centrifugal pumps. The highest is the impeller with exit angle (?2) = 250 where the specific speed value produced is 192.52 rpm and the efficiency level of this impeller is 6.82%

PENGARUH TORSI ALTERNATOR MOBIL TERHADAP INVERTER Harahap, Partaonan; Rimbawati, Rimbawati; Mangopo, Dultudes; Siregar, Munawar Alfansury; Rahmatullah, Rahmatullah; Amiruddin, Arfis
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 27, No 4 Oktober (2025): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.27.4.201-208

Salah satu bagian penting dari sistem kelistrikan mobil adalah alternator, yang berfungsi untuk mengubah energi mekanik menjadi energi listrik. Besar torsi yang diberikan pada poros alternator merupakan komponen penting yang memengaruhi kinerjanya. Studi ini menyelidiki bagaimana variasi torsi memengaruhi kinerja inverter yang menerima suplai daya dari alternator. Metode eksperimental digunakan untuk menguji sistem alternator-inverter dengan beban variatif. Data tegangan, arus, pada output inverter, tingkat torsi yang berbeda digunakan untuk memutar inverter. Studi menunjukkan bahwa torsi yang rendah menghasilkan tegangan DC yang tidak stabil, dalam pengujian, mesin penggerak alternator memiliki kecepatan putaran 1057 RPM, kecepatan sudut 110,5 rad/s, dan torsinya 9,049 Nm, sehingga inverter tidak dapat memberikan output AC yang ideal. Sebaliknya, dengan torsi yang lebih tinggi dan stabil, inverter dapat menghasilkan tegangan AC dengan frekuensi yang konstan yang hampir sama dengan nilai nominalnya. Ini menunjukkan bahwa torsi alternator berpengaruh langsung terhadap kestabilan dan efisiensi inverter. Kesimpulan utama penelitian ini adalah bahwa kualitas daya yang dihasilkan oleh inverter sangat dipengaruhi oleh kestabilan torsi alternator dengan Daya keluaran alternator = 1000 Watt dan Efisiensi alternator = 90% atau 0.9. Oleh karena itu, kontrol torsi adalah komponen penting dalam desain sistem suplai daya yang bergantung pada alternator.

Penerapan Teknologi Skimming dan Bioremediation pada Instalasi Pengelolaan Air Limbah di PT. Waruna Shipyard Indonesia Siregar, Munawar Alfansury; Damanik, Wawan Septiawan; Lubis, Sudirman; Nasutioon, Arya Rudi; Arif, Arfian
Poltekita: Jurnal Pengabdian Masyarakat Vol. 4 No. 3 (2023): Juli-September
Publisher : Pusat Penelitian & Pengabdian Masyarakat Poltekkes Kemenkes Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33860/pjpm.v4i3.1806

Water pollution causes environmental damage and is very detrimental to living things. This activity aims to improve the performance of the Wastewater Management Installation (WWTP) which functions to reduce pollutant levels in the waters. Through the collaboration of the UMSU Faculty of Engineering with PT. Waruna Shipyrad Indonesia (WSI), collaboration was also carried out to improve the performance of the wastewater management system. Wastewater management methods are carried out by applying skimming machine technology, and several sensors for the physical properties and composition of water, as well as using remediation of good bacteria from the laboratory. 6 WWTP ponds were implemented, each with dimensions of 3.7x2.8x2.17 m. The skimming machine is designed to use a drum, and the bacteria from the remediation process will suppress the growth of bacteria that damage the environment. The volume of water entering the reservoir is around 207,200 kg/m3 perweek or 207.2 Liters/week. The results of applying this technology obtained an average amount of oil taken every 2 days reaching 600 mL. The average water quality is 6-8 with a pH standard of 6-9, a COD value of 47.8 mg/L with a quality standard of 100 mg/L, and a BOD value of 21.1 mg/L with a quality standard of 30 mg/L.

POTENSI LIMBAH CANGKANG KERANG SEBAGAI KATALIS HETEROGEN UNTUK PEMBUATAN BIODIESEL Sebayang, Abdi Hanra; Pulungan, Muhammad Anhar; Siahaan, Sihar; Benu, Siti Maretia; Ibrahim, Husin; Siregar, Munawar Alfansury; Silitonga, Arridina Susan
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1428

Biodiesel is a potential energy source that has attracted attention recently because it can be produced from renewable energy sources and produces low pollutants. Biodiesel is produced by transesterifying edible or non-edible vegetable oils using a catalyst. Homogeneous catalytic processes have disadvantages, such as the catalyst residue cannot be reused. Therefore, heterogeneous or solid catalysts are used, which can be easily separated from the reaction mixture by filtration and reused. A waste cockle shell can be used as a green base catalyst to synthesize waste cooking oil into methyl ester (WCME). The free fatty acid content of used cooking oil (2.19% wt.) was initially reduced to 0.11% wt., using a methanol-oil ratio of 6:1, waste cockle shell 2% wt., reaction time 60 minutes and temperature 60 oC. The effectiveness of the developed waste cockle shell contains high CaO. The results of this study indicated the potential of clam waste cockle shells and used cooking oil as a source of raw materials available in the community for biodiesel production.

Performance analysis of buck-boost DC-DC converter with incremental conductance MPPT for PV system Rimbawati, Rimbawati; Tanjung, Wira Agus Lexmana; Harahap, Partaonan; Siregar, Munawar Alfansury; Mangopo, Dultudes
Jurnal Polimesin Vol 23, No 3 (2025): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i3.6773

Electric energy is essential in modern life, with solar power emerging as a leading renewable energy source. Photovoltaic (PV) systems convert sunlight into electricity, but their output is highly sensitive to environmental changes such as solar irradiance. A reliable Maximum Power Point Tracking (MPPT) method is needed to maximize efficiency, This study investigates the performance of a Buck-Boost DC-DC converter integrated with the Incremental Conductance (InCo) algorithm for MPPT in PV systems. A comparative analysis is conducted between systems with and without MPPT under variable irradiance conditions, replicating real-world scenarios like partially cloudy weather. Simulations were performed in MATLAB Simulink using a PV module model based on actual datasheet parameters. A digital lux meter was used to simulate light intensity fluctuations. Results show that the MPPT-enabled system effectively tracks the Maximum Power Point (MPP) even during rapid irradiance changes. On average, the system achieved improvements of 65.53% in output voltage, 65.48% in current, and 86.47% in power compared to the non-MPPT configuration. These findings demonstrate that combining the InCo algorithm with a Buck-Boost converter offers an efficient and adaptive solution for improving energy conversion in PV systems in environments with unstable solar exposure.

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