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Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Tinjauan Tinjauan Overall Equipment Effectiveness (OEE) Pada Produksi Kertas Terhadap Standar JIPM Sepfitrah; Pranoto, Siswo; Rizal, Yose; Rinaldi
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 14, No. 02, Juli 2022
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v14i2.1112

Abstract

Penelitian ini bertujuan untuk meningkatkan efektivitas produksi memanfaatkan hasil perhitungan nilai OEE (Overall Equipment Effectiveness). OEE adalah salah satu cara untuk mencari dan  memonitor efektivitas proses kerja dari suatu perusahaan.Setiap perusahaan menginginkan tingkat efektif yang tinggi dalam proses produksi yang dilakukannya. Salah satu upaya yang dilakukan guna menganalisa efektivitas proses produksi dalam hal ini adalah proses pada Paper Machine#3 di PT. XYZ. Dengan sistem TPM (Total Productive Maintenance), yaitu melibatkan operator sebagai pemeran utama untuk melakukan perawatan mesin, penelitian ini dimulai dengan mengidentifikasi kerugian peralatan (Equipment Losses) dan mengukur pencapaian nilai OEE satu lini produksi. Dari periode penelitian yang dilakukan pada Paper Machine#3 (Desember 2016 – July 2018) didapatkan nilai Availability 81,6%, nilai Performance 87,8%, Rate of Quality 92,65% dan nilai OEE 66,85%. Nilai ini masih dibawah nilai OEE standar yaitu  84%. Rata-rata losses terbesar pada Paper Machine#3 terdapat pada Equipment Failure yaitu 44,6%, Set-up & Adjust yaitu 19.05%, Reduce Speed Loss yaitu 12,5%  dan Rewinder Broke Loss yaitu 10,6%. Untuk meningkatkan nilai OEE ke nilai standar perlu diambil tindakan seperti membina kerjasama antar lini produksi dan manajemen agar terbentuk tim kerja yang solid. Perlunya dilakukan pelatihan guna meningkatkan kemampuan tim  maintenance dalam bertindak cepat dan tepat
Analisis Efisiensi Sistem Turbocharger pada Engine PLTMG 20 MW Berdasarkan Konsumsi Udara Sepfitrah; Rinaldi; Febrianton, Adi; Pranoto, Siswo; Ferial, Arios
JURNAL SURYA TEKNIKA Vol. 9 No. 2 (2022): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v9i2.4397

Abstract

Turbocharging system efficiency is a comparison between turbocharging efficiency and turbocharger efficiency. This study analyzes the performance of the ABB 140 and TCR 18 turbochargers on two JGS 620 series F111 gas engines for 3000 hours of operation. The analysis will be carried out based on the specific airflow consumption of the JGS 620 series F111 gas engine. The specific air flow consumption is obtained based on calculations, the ABB A140 turbocharger consumes an average of 0.2% more air than the TCR 18 turbocharger. This condition results in a higher output power on engine 2 on average of 2516.84 kW, compared to the output power engine 1 on average of 2402.72 kW. Based on the calculation of the conduction ratio, the average air consumption on engine 2 is less than engine 1 by 0.41%. The turbocharging efficiency value on the turbine engine 2 side is disrupted at 1700 and 2500 hours of operation. This is due to the disturbance on the turbocharger compressor side of the incoming airflow. The efficiency of the turbocharging system on engine 1 has a value of 79.77%, while on engine 2 it is 77.99%.
Analisis Tegangan pada Jalur Pipa dengan Pemindahan Penopang Akibat Longsor Sepfitrah; Yoan Perima; Mirfaturiqa
JURNAL SURYA TEKNIKA Vol. 10 No. 2 (2023): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v10i2.6160

Abstract

Landslide that has done in the Chevron, Minas oil field area on 4A-54 pipeline section, resulted the failure at one of pipe supports of 12in and 8in pipe diameter. The Action is planned to remove pipe support number 2 which affected a landslide, and move pipe supports number 1 and 3 that is closer to pipe support number 2. For this reason, action is being taken to redesign the piping system so that the pipe line can function safely. Allowable piping design criteria are used based on the maximum distance between pipe supports and maximum stress based on ASME B31.3 standards not greater than 20,000 Psi. Based on the calculation results, the allowable maximum distance between 12 in pipe supports is 16.064 m. Base on stress simulation, the maximum combined tension and torsion stress on the pipeline at that distance is 17606.44 Psi, 12% less than the allowable stress. The combine stress in the pipe produce displacement of pipe in the x-axis direction of 0.074 m and -0.95o.
Kegagalan Poros Input Gearbox Screw Decanter pada Unit Pengolah Limbah Kelapa Sawit adi, Adi Febrianton; Sepfitrah; Romiyadi; Yuvendius, Hazra; Irwan, Purnama
JURNAL TEKNIK Vol. 17 No. 1 (2023): Edisi April 2023
Publisher : JURNAL TEKNIK UNILAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/teknik.v16i2.11049

Abstract

The use of Centrifuge Decanter as a waste treatment in industry has been widely used. Centrifuge Decanter separates waste in the form of a mixture of solids and liquids (slury) by utilizing the centrifugal force generated by the difference in the rotation of the tube (bowl) and screw conveyor. The rotation of the screw conveyor is reduced through a cycloidal gearbox. The shaft in the cycloid breaks during operation, for that it is necessary to conduct research to determine the cause of this shaft fracture. This research starts from a literature study that discusses the working mechanism of the decanter and the causes of the failure of the cycloidal gearbox shaft. For completeness of the analysis, data collection includes data on engine operation, physical and mechanical properties of the shaft material, fractography of the shaft and the stresses acting on the shaft. From the results of data analysis, it is known that the shaft has ductile fracture due to overload. The load that causes the shaft to break is the torsional load that comes from the rotation of the decanter tube at the initial start of the engine. Torque due to the rotation of the tube produces a shear stress that exceeds the yield stress of the shaft material plus a stress concentration factor in the fractured shaft fillet area.
Co-Authors adi, Adi Febrianton Febrianton, Adi Ferial, Arios Hazra Yuvendius Irwan, Purnama Mirfaturiqa Rinaldi Romiyadi Siswo Pranoto Yoan Perima Yose Rizal