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All Journal Jambura Journal of Electrical and Electronics Engineering Journal of Industrial Community Empowerment
Fathurrasuli Fathurrasuli
Politeknik Industri Logam Morowali
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Peningkatan Kompetensi Pengelasan Shielded Metal Arc Welding Bagi Masyarakat Desa Makarti Jaya Kabupaten Morowali Kadriadi Kadriadi; Kadex Widhy Wirakusuma; Jumaddil Hair; Muhammad Alfian; Fathurrasuli Fathurrasuli; Vincentius Sulistyo Aji Nugroho; Yusdianto Yusdianto
Journal of Industrial Community Empowerment Vol 2, No 2 (2023): Published in October 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i2.231

Abstract

Mekarti Jaya Village is located in the PT Industrial Area. IMIP, the need for industrial workers in the PT area IMIP continues to increase as the investment value in the area increases. To prepare the people and youth of Mekarti Jaya village to be able to take advantage of job opportunities in industries located in the PT area. IMIP needs to carry out training to increase competency, especially in the field of Shielded Metal Arc Welding (SMAW) welding position 2F. The selection of SMAW welding training materials was based on survey results, in which the need for welding specialist workers was the greatest need for industries in the PT area. IMIP. Training activities are carried out for approximately 1 month, starting with the preparation, implementation, and training results stages. The activities were carried out on February 27–29, 2022. Training activities were carried out at the Morowali Metal Industry Polytechnic Machinery Maintenance Engineering study workshop. The training was attended by ± 16 young people and residents of the village of Mekarti Jaya. The results of the training carried out were an increase in understanding and knowledge before and after the training activities were carried out; this was shown by the results of the constant shape of the ridges, welding position 2F, and the results of the post-test.
Design and Performance Evaluation of a PWM-Controlled Vertical Pressure Filter for Solid–Liquid Separation of Nickel Laterite Slurry Moh . Afandy; Isran Asnawi; Hendi Lilih Wijayanto; Eriek Aristya Perdana; Muhammad Ikbal Rianto; Fathurrasuli Fathurrasuli
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 2 (2026): Juli - Desember 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i2.36783

Abstract

This study presents the design results of a Vertical Pressure Filter based on Pulse Width Modulation (PWM) using a linear actuator for the separation process of nickel laterite slurry. The development of this system is motivated by the limitations of conventional filtration systems that still use fixed pressure and are less flexible in regulating filtration pressure. The research method used is Design and Development (DD), which includes the design of mechanical and electronic systems, development of PWM control circuits, prototype realization, and system performance testing. Tests were carried out on variations of PWM duty cycles of 20%, 40%, 60%, 80%, and 100% to evaluate the actuator response and filtration performance. The results show that increasing the PWM duty cycle increases the actuator speed and vertical pressure in the filtration chamber. The duty cycle range of 20%–40% provides a more stable actuator response with low vibration and is suitable for the nickel laterite slurry filtration process. In addition, the system was able to produce a filtrate efficiency of 3.76% and a residue efficiency of 76.7%, which indicates the ability to form a filter cake and retain solids in the filtration media. The results of the study indicate that the PWM-based Vertical Pressure Filter has the potential as an adaptive, simple, and flexible filtration system for laboratory and pilot plant applications in nickel laterite processing.
Co-Authors Eriek Aristya Perdana Hendi Lilih Wijayanto Isran Asnawi JUMADDIL HAIR Kadex Widhy Wirakusuma Kadriadi Kadriadi Moh . Afandy Muhammad Alfian Muhammad Ikbal Rianto Vincentius Sulistyo Aji Nugroho Yusdianto Yusdianto