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ANALISIS DAMPAK BIAYA DI PT XYZ AKIBAT KONVERSI BAHAN BAKAR DARI COMPRESSED NATURAL GAS (CNG) KE INDUSTRIAL DIESEL OIL (IDO) SEBAGAI PENGGERAK HOT GAS GENERATOR Sukendro Broto Sasongko; Rochmad Edy Budi Laksono; Hery Irawan
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.682

Abstract

PT. XYZ pursues the efficiency of the mill machine by the fuel convertion. Here, the fuel is to power the hot gas of the cement mill machine. Thus, the effect of those detected by the exit temperature machine. The method of investigation to the using of different fuels are Industrial Diesel Oil (IDO) and Compressed Natural Gas CNG experimentally. The hot gas effect observed by the exit temperature of the cement mill machine. The boiler performance is monthly average running. The IDO performs in May, and CNG is in September. Experimental method deploys a seven-week trial procedure. The exit temperature of the cement mill is studied by monitoring it’s fluctuate. Further, the economical balance present the fuels used counted by its operational cost. The result of the exit temperature of cement mill machine is 91ºC for IDO use. It is higher than the operation average temperature of about 87ºC. It rises 10% better than that in CNG. The machine efficiency revises 15%. The operation cost depresses to 18.98% per year. It is about Rp 1,972,718.106 from Rp 10,393,667.576 per year. Otherwise, the exit temperature of mill machine is a reference to obtain the machine’s high reliability
Optimasi Kinerja dan Kekuatan Poros Mesin Pencacah Ban Multifungsi Berbasis Metode FEA Hery Irawan; Raka Noerman Khatami
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 4 No. 2 (2026): April : Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v4i2.1563

Abstract

The shaft is a crucial component in mechanical systems because it serves to transfer power and rotational motion throughout the machine. This research aims to assess the structural strength and operational performance of shafts used in a tire shredding machine through numerical simulation methods in order to achieve a safe and efficient design. The study involved several stages, including the development of shaft geometry models, the determination of boundary conditions, load application, mesh generation, and stress analysis using the finite element method. Two shaft configurations were examined: a 59 mm diameter shaft made from AISI 1045 steel and a 49 mm diameter shaft manufactured from ASTM A36 steel. The simulation results indicate that the 59 mm shaft experiences a Von Mises stress of 8.9 × 10⁻⁵ MPa, with a maximum displacement of 0 mm and a safety factor of 15. Similarly, the 49 mm shaft shows a Von Mises stress of 8.4 × 10⁻⁵ MPa, no measurable displacement, and a safety factor of 15. These findings confirm that both shaft designs are capable of safely withstanding the applied working loads. In addition, cutting system tests revealed that a 24-tooth blade achieved an efficiency of 26.9%, while a 40-tooth blade reached only 22.3%, indicating that the 24-tooth configuration provides better performance.