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All Journal Diponegoro Journal of Management Buletin Penelitian Sosek JAIS (Journal of Applied Intelligent System) JSSF : Journal of Sport Science and Fitness Majamecha Journal of Computer Science and Informatics Engineering Tropical Plantation Journal Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Jurnal ARSI : Administrasi Rumah Sakit Indonesia Psycho Aksara Jurnal Penelitian Psikologi
Nugroho, Bagus
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Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Veterinary

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Enhancing Reliability and Maintenance Efficiency of Screw Press Machines in Palm Fruitlet Processing Mills: A Failure Mode and Effect Analysis (FEMA) Approach Aditya, Abbiyu Bima; Nugroho, Bagus; Hermantoro, Hermantoro; Renjani, Rengga Arnalis
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.56

Abstract

This study analyzed the reliability and failure risks of screw press machine components in a palm oil loose fruit mill using the Failure Mode and Effect Analysis (FMEA) method. The objective was to identify critical components, evaluate their Risk Priority Number (RPN), and propose appropriate maintenance strategies. Data were collected through questionnaires, field observations, and maintenance records. The RPN was calculated by multiplying severity, occurrence, and detection scores, while reliability was assessed using the Mean Time Between Failures (MTBF) formula. The worm screw showed the highest RPN at 252, indicating a critical risk level, while the press cage followed with an RPN of 210. MTBF analysis revealed that the worm screw required replacement every 313.5 hours, whereas components like the V-belt and electro motor had longer MTBF intervals of up to 3135 hours. The findings suggested that targeted maintenance on high-risk components could reduce downtime and enhance production efficiency. This study concluded that prioritizing preventive maintenance based on RPN and MTBF results was crucial for maintaining the operational performance of screw press machines in palm oil processing.
Karakteristik Distribusi Temperatur dan Pola Aliran Udara dalam Ruangan dengan Satu Unit AC Tipe Split dengan Variasi Kecepatan Udara Inlet Menggunakan Metode CFD Nugroho, Bagus; Effendy, Marwan
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2024: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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Penelitian ini bertujuan untuk memprediksi distribusi temperatur dan pola aliran udara pada ruangan berukuran 10,45m x 8,1m x 3,93m, dengan menggunakan satu unit mesin pendingin Air Conditioner (AC) tipe split.. Penelitian diawali dengan pengukuran temperatur ruangan pada beberapa titik acuan di ketinggian 1m dari lantai. Data temperatur ini selanjutnya dipergunakan sebagai acuan untuk validasi data dan pendekatan simulasi computational fluid dynamics (CFD) yang dilakukan. Simulasi RANS mengaplikasikan model turbulensi k-epsilon dengan mengembangkan tiga tipe mesh secara terstruktur hingga 972.838 elemen. Tipe mesh yang mampu menghasilkan data simulasi yang paling dekat dengan data pengukuran temperatur dijadikan patokan untuk mengembangkan simulasi tingkat lanjut guna menginvestigasi sirkulasi udara dalam ruangan sebagai akibat pengaruh kecepatan fan AC di evaporator mulai dari 3,16; 3,66; dan 4,16 m/s. Hasil penelitian menunjukkan bahwa konstruksi mesh paling halus mampu menghasilkan prediksi data simulasi dengan tingkat kesalahan hingga 4,91%. Pada investigasi tiga kondisi kecepatan berbeda tersebut, kecepatan udara mempengaruhi distribusi temperatur dan pola aliran udara. Seiring meningkatnya kecepatan udara maka distribusi temperatur dan pola aliran udara lebih merata ke seluruh ruangan.
Co-Authors Aditya, Abbiyu Bima Aji, Wandha Atmaka Annabil, Muhammad Haziq Damanik, Regina Destrina Dharmawati, Nuraeni Dwi Faizah, Kuni HERI SETYAWAN Hermantoro, Hermantoro Idris Idris Kamaluddin, Rachmat Kirana, Irin Laila, Farra Marwan Effendy Muhammadi, Muhammadi Muliadi, Nuraziz Muljono Muljono Nugraha, Maulana Adhika Nurcahyono Nurcahyono, Nurcahyono Nurjanah, Rizka NURUL AZIZAH Pradana, Hengki Hendra Renjani, Rengga Arnalis Safi’i, Akhmad Setya Rahayu Susanto, Al Birr Karim Toyyibah Toyyibah, Toyyibah Utami, Aditya Dyah Wahyu Sulistiadi