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All Journal Jurnal Konversi Energi dan Manufaktur Piston: Jurnal Teknologi BULLET : Jurnal Multidisiplin Ilmu
Edward Simanjuntak
Politeknik Negeri Bandung
Aerospace Engineering Humanities Automotive Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics

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Analisis Performa Boiler Standard Kessel Berdasarkan Rasio Bahan Bakar dan Steam di PT. XYZ Otong Jaelani; Ali Imron; Dibyo Setiawan; Edward Simanjuntak; Agus Subeno
Piston: Jurnal Teknologi Vol 10 No 2 (2025): Desember 2025
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v10i2.117

Abstract

Salah satu mesin industri yang perannya sangat penting yaitu boiler. Boiler dalam perusahaan ini merupakan aset yang sangat penting bagi perusahaan, yang menghasilkan luaran berupa uap (steam). Pembakaran adalah suatu reaksi kimia antara bahan bakar dan oksigen yang menghasilkan panas. Konsumsi bahan bakar dan steam boiler yang dihasilkan menjadi hal yang diamati Perusahaan sebagai evaluasi perencanaan anggaran. Tujuan kegiatan ini yaitu menganalisis Analisis Performa Boiler Standard Kessel Berdasarkan Rasio Antara Bahan Bakar dan Steam di PT. XYZ. Metode Pelaksanaan dengan cara melakukan operasi boiler dan melakukan pencatatan operasi serta penelaahan Riwayat produksi. Hasil pengamatan dan penelaahan Riwayat produksi 1 Tahun mulai Juli 2021 sampai Juni 2022 diperoleh nilai rata-rata konsumsi bahan bakar 1009,43 Kg/Jam, kebutuhan air 5,72 m3/Jam dan luaran steam 7866,97Kg/Jam. Sehingga rasio yang diperoleh 130,98. Kesimpulan Performa Boiler Standard Kessel diperoleh 130,98 kg dari maksimal alokasi badan usaha 150 Kg. Kontribusi positif dari kegiatan ini bermanfaat bagi perusahaan mengendalikan alokasi anggaran bahan bakar dan luaran steam operasi boiler, kelebihan penggunaan bahan bakar berdampak pada kerugian perusahaan, sedangkan ketidaksesuaian luaran performa turbin menjadi indikasi terjadinya kerusakan yang dapat ditindaklanjuti.
Analisis Keandalan Mesin Milling CNC Menggunakan Metode Failure Mode and Effect Analysis Nina Hardiyanti; Mokhammad Munir Fahmi; Edward Simanjuntak
BULLET : Jurnal Multidisiplin Ilmu Vol. 4 No. 2 (2025): BULLET : Jurnal Multidisiplin Ilmu
Publisher : CV. Multi Kreasi Media

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Abstract

Machine reliability in production units is an important aspect in ensuring productivity and efficiency in various industrial sectors. The purpose of this study is to focus on improving reliability. The Failure Mode and Effect Analysis (FMEA) method is used to analyze as an effort to improve machine reliability. FMEA provides a comprehensive understanding of reliability improvement strategies by strengthening reliability prediction and preventive maintenance strategies. This method is also used to identify potential failures in the system, evaluate their impact, and design effective maintenance strategies. Results and Discussion showed that the Mazak Variaxis CNC milling machine had the highest percentage of problems, reaching 40% based on downtime and frequency of occurrence in the prismatic cell. Based on the FMEA analysis, the main failure mode was identified through the calculation of the Risk Priority Number (RPN) with the highest values ​​of 126 (rank 1), 120 (rank 2), and 105 (rank 3). RPN values ​​greater than 87.93 are categorized as critical failures. The ATC (Automatic Tool Changer) component occupies a crucial position with the highest percentage of component problem factors, reaching 129%. Conclusion: By using an empirical approach, the proposed implementation of actions as an effort to reduce the RPN number and increase machine reliability by prioritizing problems based on the RPN value scale, increasing the intensity of preventive maintenance scheduling and periodic replacements, and planning spare parts stock.
Protective Coating Performance on Industrial Components During Shutdown Maintenance Toni Okviyanto; Agus Subeno; Dibyo Setiawan; Fauzi Widiawati; Edward Simanjuntak; Otong Jaelani
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 2 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.2.6

Abstract

Corrosion protection is a critical aspect of industrial maintenance because coating quality directly influences equipment durability, operational reliability, and long-term maintenance efficiency. However, coating assessments in industrial practice often focus on compliance with thickness specifications without comprehensively evaluating the relationship between surface preparation quality, environmental conditions, coating thickness, and final coating performance under actual shutdown maintenance conditions. This study aimed to evaluate the effectiveness of the coating process during total plant shutdown (TPS) painting work on four industrial components: the sole plate sag mill, cover motor ball mill, base frame motor bubble crusher, and OHC girder. A field-based coating performance assessment was conducted using final painting reports, visual inspection records, environmental condition monitoring, surface preparation evaluation, and dry film thickness (DFT) measurements. Surface preparation was carried out using ST 3/SSPC-SP 3 mechanical cleaning, while coating performance was evaluated against the specified DFT requirements. The results showed that all inspected components satisfied the acceptance criteria, with primer DFT values exceeding 150 µm and final DFT values exceeding the minimum system requirement of 225 µm. Final coating thickness increased by 263–347 µm compared to the existing condition, indicating the formation of a protective coating layer. Nevertheless, noticeable thickness variations among measurement locations suggest opportunities for improving application consistency and process control. These findings demonstrate that the applied coating system met the specified performance requirements and provided effective corrosion protection under field conditions, while further optimization of coating application practices is required to achieve more uniform and efficient coating performance.
Co-Authors Agus Subeno Agus Subeno Ali Imron Fauzi Widiawati Mokhammad Munir Fahmi Nina Hardiyanti Otong Jaelani setiawan, Dibyo Toni Okviyanto