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All Journal JTTM: Jurnal Terapan Teknik Mesin JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Saleh, Yasya Khalif Perdana
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Perancangan dan Simulasi Pembebanan pada Rangka Mesin Penghancur dan Ekstruder Filamen Saleh, Yasya Khalif Perdana; Fitrah Agustian; Priyadi, M Untung Zaenal; Muhammad Luqman Saiful Fikri; Mohamad Zaenudin; I Nyoman Jujur
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 7 No 01 (2025): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/permadi.v7i01.185

Abstract

Meningkatnya limbah plastik mendorong pengembangan teknologi daur ulang yang berkelanjutan, salah satunya adalah konversi limbah polimer menjadi filamen untuk pencetakan 3D. Penelitian ini bertujuan untuk merancang dan mensimulasikan pembebanan pada rangka mesin penghancur dan ekstruder filamen sebagai bagian dari sistem pengolahan limbah plastik. Proses penelitian meliputi identifikasi kebutuhan pengguna, penyusunan spesifikasi teknis, pengembangan dan seleksi konsep desain menggunakan metode matriks keputusan, hingga analisis numerik berbasis Finite Element Analysis (FEA). Dari tiga alternatif desain, konsep 3 terpilih dengan nilai evaluasi tertinggi (29 dari 40). Simulasi struktural dilakukan pada tiga jenis material: Aluminium 6061, Steel AISI 5140, dan Steel AISI 1018 HR. Hasil menunjukkan bahwa Steel AISI 5140 memiliki performa struktural terbaik dengan tegangan Von Mises terendah (40,18 MPa), faktor keamanan tertinggi (10,41), dan displacement yang relatif rendah (1,215 mm). Dengan mempertimbangkan kekuatan, kekakuan, dan margin keamanan, Steel AISI 5140 dipilih sebagai material optimal untuk pembuatan prototipe. Penelitian ini membuktikan bahwa pendekatan berbasis pemodelan dan simulasi mampu menghasilkan desain yang andal dan siap untuk tahap pengembangan lebih lanjut.
Non-destructive test examination of shielded metal arc welding of SS400 steel plate for pressure vessel application Indra, Ida Bagus; Monanov, Murodih; Zaenudin, Mohamad; Saleh, Yasya Khalif Perdana
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 2 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i2.1685

Abstract

The global energy crisis caused by the limits of oil reserves urges the need for alternative energy solutions, including pyrolysis-based oil energy. In this study, we investigate the pyrolysis of corn cob biomass with varying particle sizes (3 mesh, 5 mesh, 7 mesh, and 10 mesh) to evaluate its effect on product yields and physical properties. Each experiment was conducted for 90 minutes using 300 grams of feedstock, which had been pre-dried in a microwave oven at 120°C for 2 hours. The results revealed that the bio-oil yield decreased with smaller particle sizes, from 31.52% at 3 mesh to 26.12% at 10 mesh. Conversely, bio-char yield increased from 37.48% to 46.47%, while bio-gas yield decreased from 31.00% to 27.42%. This suggests that excessively small particle sizes reduce bio-oil yield due to uncontrolled reactions despite their higher surface area. The bio-oil density ranged between 1.0235 and 1.0353 g/ml, indicating consistent physical properties across particle sizes. The inlet and outlet temperatures of the reactor (T1 and T2) and condenser (T3 and T4) remained relatively stable, indicating consistent condensation of pyrolysis gases into liquid bio-oil. This study has successfully provided insight into the optimization of a particle size of the waste processing of corn cob into energy by using the pyrolysis method
Co-Authors Fitrah Agustian I Nyoman Jujur Indra, Ida Bagus Mohamad Zaenudin Mohamad Zaenudin Monanov, Murodih Muhammad Luqman Saiful Fikri Priyadi, M Untung Zaenal