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All Journal Rekayasa Mesin Jurnal Elementer (Elektro dan Mesin Terapan) Jurnal Teknik Mesin Jurnal Teknik Mesin Indonesia Majamecha APTEK Jurnal Rekayasa Energi dan Mekanika Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) JITER-PM (Jurnal Inovasi Terapan - Pengabdian Masyarakat)
Novison, Roni
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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OPTIMIZATION PITCH AND CLEARANCE FOR DOUBLE HELICAL RIBBON AGITATOR IN BRIQUETTE DOUGH MIXING MACHINE: ANALYSIS OF TORQUE AND POWER IMPACT Ma'a, Mustaza; Faadhilah, Hanif; Wijianto, Agus; Novison, Roni
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.1905

Abstract

Briquette dough kneading machines have become an integral part of the briquette production process in industry. This study aims to analyze the effect of pitch (distance between two windings) and clearance (distance between stirrer and machine wall) on the performance of double helical ribbon stirrer in stirring briquette dough. The numerical method used is Discrete Element Method (DEM), using a stirring speed of 50 rpm and a particle size of 10 mm. In this simulation, the briquette mixture was modeled as two granular materials consisting of spherical particles. The particles were characterized using density, with briquette powder at 766 kg/m3 and starch glue at 1000 kg/m3. Simulation results show that variations in pitch and clearance significantly affect the distribution of torque, mechanical power, and dough flow. The stirrer with 157.5 mm pitch has the smallest torque and power, then the torque and mechanical power increase about 260% in the stirrer with 118.5 mm pitch. Then the stirrer with a pitch of 94.8 mm has a very high torque and mechanical power with an increase over the previous stirrer of about 1500%. The researcher concluded that the double helical ribbon stirrer with a pitch distance of 118.5 mm and a clearance of 10 mm is the appropriate stirrer to be used, with torque and power of 41.62749 Nm and 318.3174 W. This is corroborated by the simulation results with a visual assessment showing that the shear force and homogeneity are in optimal condition, although the torque and power are not too close to the design calculation results of 53.0836 Nm and 277.8042 W.
Studi Eksperimental Pengaruh Waktu Granulasi Dan Bahan Campuran Terhadap Keseragaman Bentuk Granular Zaira, Jupri Yanda; Putra, Alhadi; Irdam, Fortinov Akbar; Novison, Roni
Majamecha Vol. 7 No. 2 (2025): Majamecha
Publisher : Program Studi Teknik Mesin, Fakultas Teknik, Universitas Islam Majapahit, Mojokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36815/majamecha.v7i2.4328

Abstract

Pupuk granul merupakan salah satu bentuk pupuk organik yang lebih praktis digunakan petani karena memiliki ukuran seragam dan mudah diaplikasikan ke lahan. Penelitian ini bertujuan menganalisis pengaruh variasi bahan campuran dan waktu granulasi terhadap keseragaman bentuk butiran granul. Metode yang digunakan berupa pengujian eksperimental dengan memanfaatkan bahan baku kotoran sapi dan kambing, baik dalam kondisi basah maupun kering, dengan tambahan perekat ampas CPO dan solid sawit. Proses granulasi dilakukan pada sudut mata penahan 36° dengan variasi waktu 5, 10, dan 15 menit. Hasil pengujian menunjukkan bahwa kotoran kambing kering dengan perekat solid sawit memberikan performa terbaik, menghasilkan butiran lebih seragam pada rentang ukuran 2–5 mm. Waktu granulasi 10–15 menit terbukti paling efektif dalam membentuk granul yang stabil, sedangkan bahan baku basah tidak direkomendasikan karena kandungan air yang tinggi menyebabkan penggumpalan. Temuan ini menegaskan bahwa pemilihan bahan baku dan durasi granulasi yang tepat sangat berpengaruh terhadap kualitas pupuk granul yang dihasilkan. Persentase keberhasilan hasil dari pengujian ini sebesar 25% dari bahan input kotoran kambing 1 kg dan bahan baku 1 kg.
Manufaktur Alat Pengolah Limbah Plastik Menjadi Bahan Bakar Alternatif (Minyak Solar) dengan Metode Pirolisis Zaira, Jupri Yanda Zaira; Dani, Darwis; Novison, Roni; Wijianto, Agus; Hasibuan, M. Refky
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.308

Abstract

Pyrolysis is a thermochemical process that can break down organic/inorganic materials into more valuable compounds by heating them to high temperatures. In this research, a laboratory-scale plastic waste pyrolysis system was manufactured, designed using CAD software, with all material components and the heating system selected. The pyrolysis unit consists of a stainless-steel reactor tube as the main component with a diameter of 0.5 m and a height of 1.5 m, an LPG-based heating system, and a galvanic condensation tube to convert vapor into pyrolysis oil. The manufacturing process involved fabricating the reactor tube using Shielded Metal Arc Welding (SMAW) with a 2.6 mm-diameter E6013 electrode. The testing was conducted at temperatures ranging from 300 to 400°C, with a capacity of 10 kg of polyethylene (PE) and polypropylene (PP) plastic per cycle. During the initial phase, leaks were found at the pipe joints and reactor lid, but repairs using heat-resistant sealing adhesive successfully restored the device to proper function. The outcome of this research is the creation of a pyrolysis unit capable of converting plastic waste into a primary product, pyrolysis oil. Each cycle, with a plastic waste capacity of 10 kg, can produce approximately 4.5 liters of pyrolysis oil, along with pyrolysis gas and solid residue. The produced pyrolysis oil has a calorific value of approximately 462 kJ/kg, which is close to that of fossil fuels (diesel oil), with a density of 0.83- 0.85 g/cm³.
Co-Authors Adli, Muhammad Amirul Agus Wijianto Agusto, Dino Akhyan, Amnur Amnur Akhyan Dani, Darwis Faadhilah, Hanif Haiqal, Muhammad Hasibuan, M. Refky Irdam, Fortinov Akbar Ma'a, Mustaza Maa, Mustaza Made Rahmawaty, Made Nugraha, Nurcahya Nugroho, Nur Cahya Putra, Alhadi Razali, Mohd Azahari bin Rianto, Rifan Syachreffi, Mohammad Ichwan Wijianto, Agus Zaira, Jupri Yanda Zaira, Jupri Yanda Zaira