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All Journal Bulletin of Electrical Engineering and Informatics Jurnal Inotera Jurnal Penelitian Chanos Chanos
Siregar, Izhary
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Experimental study the performance of a 6-bladed Savonius vertical axis wind turbine using polyvinyl chloride material Siregar, Izhary; Dwi Nugroho, Setyawan; Zaskia Pratiwi, Citra; Mawardi, Iman; Jibril, Ahmad; Suhadi, Suhadi
Bulletin of Electrical Engineering and Informatics Vol 13, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i6.7550

Abstract

The Savonius U type wind turbine is a vertical axis turbine that can operate at low wind speeds. In general, the performance of this turbine is influenced by several factors, one of which is the shape of the turbine blade. This research aims to test the design results of a 6 blade Savonius turbine with a blade length of 50 cm made from polyvinyl chloride (PVC) by varying the dimensions of the blade diameter. The variables that vary between blade length and blade diameter are D/L=0.10, D/L=0.13, D/L=0.18, and D/L=0.20. The aim of this research is to determine the effect of variations in the parameters above on turbine rotation and the electrical power produced in a direct current (DC) generator at each variation in wind speed. From the research results, it is known that the trend graph of the relationship between turbine rotation and wind speed has a linear correlation. In simple terms, this turbine can be applied to DC voltage loads such as lighting using light emitting diode (LED) lamps with a maximum power capacity of ± 16 watts, while the overall efficiency (OE) is 50.25%.
ANALISA TORSI MENGGUNAKAN PERBANDINGAN MASUKAN DAYA LISTRIK PADA AERATOR PADDLE WHEEL DENGAN TRANSMISI MENGGUNAKAN RANTAI SPROKET, GEARBOX PABRIKAN DAN GEARBOX RODA GIGI LURUS Mawardi, Iman; Purwanto, Agus; Siregar, Izhary; Dwi Nugroho, Setyawan
Chanos Chanos Vol 22, No 2 (2024): CHANOS CHANOS
Publisher : Politeknik Kelautan dan Perikanan Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/chanos.v22i2.15477

Abstract

The paddle wheel type aerator is a popular aerator used in aquaculture to increase dissolved oxygen (DO) levels. The paddle wheel aerator uses a transmission to adjust the rotation of the electric motor so that the paddle wheel can rotate at a certain speed. Several types of transmission have been used, namely using sprocket chains, factory gearboxes and straight gear gearboxes. In this research, torque analysis was carried out using a comparison of electrical power input to calculate the mechanical losses of the types of transmission used, so that one can find the type of transmission that has the lowest losses in the paddle wheel aerator application. The test results show that the sprocket chain transmission has a mechanical loss of 0.28 Nm, while the factory gearbox is 0.21 Nm and the lowest is the straight gear gearbox which has a mechanical loss of only 0.01 Nm so the development of a paddle wheel aerator transmission using a straight gear transmission is a brilliant idea to develop.Aerator jenis paddle wheel merupakan aerator yang popular digunakan pada budidaya perikanan untuk meningkatkan kadar oksigen terlarut (DO). Aerator paddle wheel memanfaatkan transmisi untuk menyesuaikan putaran motor listrik sehingga roda kincir dapat berputar dengan kecepatan tertentu. Beberapa jenis transmisi telah digunakan, yakni menggunakan rantai sprocket, gearbox pabrikan dan gearbox roda gigi lurus. Dalam penelitian ini dilakukan analisa torsi menggunakan perbandingan masukan daya listrik untuk menghitung rugi-rugi mekanis dari jenis-jenis transmisi yang digunakan, sehingga dapat menemukan jenis transmisi yang memiliki rugi-rugi paling rendah dalam aplikasi aerator paddle wheel. Hasil pengujian menunjukkan transmisi rantai sprocket memiliki rugi-rugi mekanis sebesar 0,28 Nm, sementara gearbox pabrikan sebesar 0,21 Nm dan yang terendah yakni gearbox roda gigi lurus yang memiliki rugi-rugi mekanis hanya 0,01 Nm sehingga pengembangan transmisi aerator paddle wheel menggunakan transmisi roda gigi lurus merupakan ide yang patut untuk dikembangkan.
Numerical Modeling and Experimental Validation of Thermal Distribution in a Prototype Snakehead Fish (Channa striata) Extraction Chamber with Dual-Heater Configuration Siregar, Izhary; Ahmad Jibril; Setyawan Dwi Nugroho; Agus Purwanto
Jurnal Inotera Vol. 11 No. 1 (2026): January-June 2026
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol11.Iss1.2026.ID610

Abstract

This study evaluates the thermal performance and extraction capacity of a developed steaming chamber utilizing a dual-heater configuration (2 x 200 W). A two-stage methodology was implemented: first, a numerical characterization using Computational Fluid Dynamics (CFD) to simulate convective heat distribution and fluid flow patterns; and second, an experimental validation using a physical prototype. The CFD results revealed a convection-dominated thermal field with a maximum wall temperature of 63.52°C and a center temperature of 55.22°C, maintaining a low thermal gradient of approximately 8.3°C. This uniformity ensured that fish samples remained at a stable exposure temperature of roughly 60°C during the initial heating phase. Experimental trials were conducted across a temperature range of 40–110°C and durations of 60–180 minutes. The results identified an optimal operating window between 80°C and 90°C for 120 minutes, yielding a peak extraction volume of 46.4 mL. Data trends indicated that while thermal energy is essential for liberating albumin from the tissue matrix, temperatures exceeding 100°C lead to a progressive decline in yield due to fluid evaporation and potential thermal degradation. Conversely, temperatures below 70°C proved insufficient for effective extraction. Qualitative chromatic analysis confirmed that the optimal 80–90°C range produced the most concentrated and opaque extracts.. The integration of CFD-based design and automated thermal control successfully demonstrates a robust framework for maximizing the recovery of thermosensitive fish essences in extraction chamber.
Co-Authors Agus Purwanto AGUS PURWANTO Ahmad Jibril Dwi Nugroho, Setyawan Jibril, Ahmad Mawardi, Iman Setyawan Dwi Nugroho Suhadi Suhadi Zaskia Pratiwi, Citra