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All Journal Automotive Experiences
Sigit Dwi Yudanto
National Research and Innovation Agency, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mechanical Engineering

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Rotating-Magnetic-Field-Assisted Electrodeposition of Copper for Ambulance Medical Equipment Syamsuir Syamsuir; Ferry Budhi Susetyo; Bambang Soegijono; Sigit Dwi Yudanto; Basori Basori; Maman Kartaman Ajiriyanto; Daniel Edbert; Evi Ulina Margaretha Situmorang; Dwi Nanto; Cahaya Rosyidan
Automotive Experiences Vol. 6 No. 2 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.9067

Abstract

This study examines the influence of the application of a rotating magnetic field in the electrodeposition of copper (Cu). During the electrodeposition, five constant magnets were rotated (500 and 800 rpm) towards the bottom of the sample. To investigate deposition rate, surface morphology, phase, structure, corrosion resistance, and hardness in deposited Cu using a weighing scale, a scanning electron microscope equipped with energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), potentiodynamic polarization, and hardness tester respectively. Bacterial activity was also evaluated through this research. Morphological surface observations showed that the increase in the rotational speed of the magnets during the electrodeposition process led to a smooth surface. A perfect Cu phase covers Al alloy with no oxide. The potentiodynamic polarization demonstrated by the increase in the rotating led to a shift to the more positive value of the corrosion potential. Moreover, the corrosion current also decreases with the increase in the rotating speed of the magnets. Less crystallite size promoted forming a higher hardness and inhibition zone of the Cu films.
Distillation, Characterizations, and Testing of Distillation Products from Waste Lubricant Oil (WLO) using Compression-Ignition Engine Sugeng Priyanto; Ahmad Lubi; Ferry Budhi Susetyo; Danar Hari Krisyono; Sigit Dwi Yudanto; Fakhrony Sholahudin Rohman; Sudibyo Sudibyo
Automotive Experiences Vol. 7 No. 3 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.11497

Abstract

Waste lubricant oil is always found in motor vehicle repair shops. Utilizing waste lubricant oil by distilling it will provide benefits. For this reason, waste lubricant oil was distilled in this research. Several characterizations were conducted to determine the viscosity, density, low heat value (LHV), and flash point of waste lubricant oil and distillation products. The distillation product is less viscous, denser, LHV, and flash point than lubricant oil waste. The distillation product was mixed with Pertamina DEX (0, 5, 10, and 15 vol.%) and then filled into the fuel tank for the engine performance test. The present experiment utilized a compression-ignition (CI) engine to measure performance. CI engine speed variations were carried out at 1000, 1500, 2000, and 2500 to see the influence of the mixed fuel on torque, power, specific fuel consumption (SFC), thermal efficiency, and smoke opacity. The increase in CI engine speed leads to an increase in torque, power, thermal efficiency, and smoke opacity, but at the same time, SFC decreases to 2500 rpm. Increasing the distillation product content in the mixed fuel decreased torque, power, SFC, thermal efficiency, and increased smoke opacity.
Co-Authors Ahmad Lubi Bambang Soegijono Basori Basori Cahaya Rosyidan Danar Hari Krisyono Daniel Edbert Dwi Nanto, Dwi Evi Ulina Margaretha Situmorang Fakhrony Sholahudin Rohman Ferry Budhi Susetyo Maman Kartaman Ajiriyanto Sudibyo Sudibyo Sugeng Priyanto Syamsuir Syamsuir