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All Journal Jurnal Energi Dan Manufaktur Jurnal Optimasi Sistem Industri INOVTEK POLBENG INSIST (International Series on Interdisciplinary Research) Jurnal Triton Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks EDUBIOLOCK Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Jurnal Pengabdian kepada Masyarakat Indonesia (JPKMI) METAL : Jurnal Sistem Mekanik dan Termal POACE: Jurnal Program Studi Administrasi Pendidikan Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Agus Sutanto
Universitas Andalas
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Journal : METAL : Jurnal Sistem Mekanik dan Termal

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Analisis Ketersediaan Pasokan Listrik di PT PLN (Persero) UPK Teluk Sirih dengan Metoda Lean Six Sigma Muhammad Dani Gitatisna; Agus Sutanto
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1185.931 KB) | DOI: 10.25077/metal.5.1.1-8.2021

Abstract

This research was conducted to analyze electricity supply availability from the steam power plant at PLN Teluk Sirih. This electricity supply availability is also called the equivalent availability factor (EAF). The regular efforts made to maintain the EAF at PLN are still corrective, by repairing the damage that has occurred, and no systematic method has been implemented. Accurate analysis is required to achieve high EAF values and precision so that the problem's root cause can be resolved. This can be done by using the lean six sigma method. This method can identify waste and solve problems quickly. The methodology used is Define, Measure, Analyze, Improve, and Control (DMAIC). The waste that occurs is a defect, which is the inability of the power plant to supply electricity to customers (PLN P3BS). The identification results show that the factors that influence EAF are boiler tube leak (41.46%), DS Phase S (20.45%), equipment vibration (5.85%), bottom ash system (5.39%), and other disorders (26.84%). The EAF calculation for the last two years is 70.93%, and the six sigma level is 2.05. The improvement design is expected to eliminate boiler tube leak and increases the EAF by 6.65%. Thus, the EAF value becomes 77.85%, and the six sigma level becomes 2.26.
Tool life in Turning Processes: Effect of Lubricants with a small amount of Graphite as Cutting Fluid Agus Sutanto; Ismet Hari Mulyadi; Farchan - Vernando
METAL: Jurnal Sistem Mekanik dan Termal Vol 6, No 2 (2022): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.6.2.69-76.2022

Abstract

This study aims to determine the effect of various lubricant-based cutting fluid parameters to produce an optimal tool life in turning operations. This research does not use coolant as a cooling fluid, but as a lubricant with the addition of a small amount of graphite (solid lubricant) at a minimum quantity condition. By using HSS cutting tools and a low carbon steel workpiece, an experimental design was carried out using the Taguchi method with three parameters, that is the viscosity of the lubricant, the percentage of graphite in the lubricants, and the supplied pressure of the lubricants. Each parameter is designed to have three levels. The experimental results show that the percentage of graphite in the lubricant has the largest contribution of 52% and the viscosity of the lubricant is 38% while the fluid supplied pressure is only 7% of the tool life. Furthermore, based on the analysis of variance (ANOVA) it is known that the percentage of graphite and viscosity of the lubricant has a significant effect on the cutting tool life. The optimal and longest tool life is achieved when carried out with lubricant SAE20-50 with the percentage addition of 0.10% graphite with a pressure of 5 Bar.
Co-Authors Adriansyah Adriansyah Akmal Indra Akmal Indra Alfian Alfian Anita Susilawati Bambang Hariyanto Berry Yuliandra Dasrieny Pratiwi Dhani Sakhiri Dhea Ananda Dian Anggarawati Farchan - Vernando Hendris Prasojo Hening Widowati Irfan Suliansyah Ismet Hari Mulyadi Mahardika, Muladi Muhammad Ardi Muhammad Dani Gitatisna Nota Effiandi Suharno Zen Sutrisni Andayani, Sutrisni Vina Yulita Widya Sartika Sulistiani, Widya Sartika Willy Pratama Windia, Lista Yusniwati Yusniwati