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All Journal Jurnal Teknik Mesin Journal of Applied Sciences, Management and Engineering Technology (JASMET) Procedia of Social Sciences and Humanities
Ardian, Dedy Rachman
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Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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ANALYSIS OF CORROSION RATE OF ASTM A 387 GRADE 12 AND A 283 GRADE FOR SULFURIC ACID TANK MATERIAL Meryanalinda, Meryanalinda; Ardian, Dedy Rachman; Shocib, Mochammad; Yasin, Ahmad
Journal of Applied Sciences, Management and Engineering Technology Vol 1, No 2 (2020)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2020.v1i2.1194

Abstract

Corrosion is a process of degradation metal quality which is very detrimental in the industry. Especially in an industries related to utilization of acidic liquids such assulfuric acid, hydrochloric acid, etc. If corrosion rate of carbon steel can be estimated, the prediction of remaining life of carbon steel, and the preventive methods of corrosionwould be more appropriate. This will reduce technical, economic and aesthetic losses. The aims of this study was to determine corrosion rate of carbon steel in sulfuric acid. This study used ASTM A 387 Grade 12 and ASTM A 283 Grade A carbon steel type fortank material, where one material is represented by 5 specimen. The corrosion rate of Specimens were measured by the weight loss method for 31 days. The 5 specimens were divided into 3 regions where specimens no.1 and 2 were immersed in  sulfuric acid , specimens no.3 were in the middle area or zone level (partially immersed), and specimens no.4 and 5 were not immersed in sulfuric acid. The highst corrosion rate occured on specimen No.3 with maximum corrosion rate was 0,097 mm/y for ASTM A 387 Gr 12 and 0,096 mm/y untuk material ASTM A 283 Gr A. The results of corrosion rate on ASTM A 387 Grade 12 material are lower than corrosion rate of ASTM A 283 Grade A material. This is caused by presence of Mo and Cr alloy elements in ASTM A 387 Grade 12.
Autocad Application Training for SMK Karya Bakti Gresik in Supporting Independent Learning Program for the Independent Campus (MBKM): Pelatihan Aplikasi Autocad bagi SMK Karya Bakti Gresik dalam Mendukung Merdeka Belajar Kampus Merdeka (MBKM) Meryanalinda; Sundari, Putri; Ardian, Dedy Rachman
Procedia of Social Sciences and Humanities Vol. 3 (2022): Proceedings of the 1st SENARA 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v3i.159

Abstract

CAD (Computer Aided Design) is a computer program for drawing a product. The use of CAD can be in the form of 2-dimensional or 3-dimensional drawings. The advantage of using this CAD computer program is to make it easier and faster to create and change a product/component drawing. Besides that, this program is also useful to make it easier to complete image data such as material type, dimensions, number of products and so on. Mastery of the AutoCAD application is very necessary for students and teachers of Vocational High Schools (SMK), especially in the mechanical engineering department of SMK Karya Bhakti Gresik. This is because they have limited facilities and infrastructure in learning AutoCAD. The ability to use AutoCad for vocational students is a provision to enter the world of work after graduating from school, one of which is to work in the industrial world. Where in the era of Industry 4.0, many companies demand AutoCad capabilities as a condition for joining vocational graduates. Based on this, the competence of AutoCad for SMK Karya Bakti Gresik students needs to be improved. One of the learning processes to improve this competency is to provide AutoCAD application training for SMK Karya Bhakti Gresik students. The training method used is a workshop, where students are given material about AutoCad, then practice AutoCAD directly at the Multimedia Laboratory of the University of Gresik. The participants of this training focused on students in grades X and XI of the Mechanical Engineering Department of SMK Karya Bakti with a training duration of 2 days.
Analisa Pengaruh Penggunaan Oli Pelumas 15W-40 dan 10W-40 Terhadap Performa Mesin Motor Matic 110 CC Mudzakir, M.; Ardian, Dedy Rachman; Sundari, Putri
Jurnal Teknik Mesin Vol 18 No 1 (2025): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.18.1.1864

Abstract

This study aims to analyze the impact of using lubricating oils with SAE 10W-40 and SAE 15W-40 viscosities on the performance of 110cc automatic motorcycle engines. The tests focus on the effects of both types of oil on engine power, torque, and air-fuel ratio (Air Fuel Ratio/AFR). This research employs an experimental method involving laboratory tests and road tests to obtain accurate data. The viscosity tests show that SAE 10W-40 oil has lower viscosity at low and medium temperatures compared to SAE 15W-40, which has higher viscosity and is more stable at high temperatures. The power and torque tests indicate that SAE 10W-40 oil produces more stable maximum power within the medium RPM range, while SAE 15W-40 has a sharper peak power but within a more limited RPM range. The torque tests also show that SAE 10W-40 performs better in maintaining torque over a longer range. Additionally, AFR analysis indicates that SAE 10W-40 oil approaches the ideal ratio for efficient combustion, while SAE 15W-40 tends to produce a richer mixture at high RPM, which improves performance but reduces fuel efficiency. The results suggest that the selection of oil with the appropriate viscosity significantly affects engine performance, especially in terms of fuel efficiency, power, and torque in a 110cc automatic motorcycle.
Co-Authors Ahmad Yasin, Ahmad Meryanalinda Meryanalinda, Meryanalinda Mudzakir, M. Shocib, Mochammad Sundari, Putri