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Design of Helical Type Steam Generator for Experimental Power Reactor – Helium Side Putri, Sunny Ineza; Subekti, Mohammad; Martin, Awaludin; P, Brian Agung Cahyo; Hermanto, Jheri; Siregar, Ansor Salim
Piston: Journal of Technical Engineering Vol. 9 No. 1 (2025)
Publisher : Program Studi Teknik Mesin Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v9i1.51645

Abstract

Previous research has not analyzed the helium temperature distribution in the RDE steam generator shell. This study aims to fill that gap by analyzing these thermal characteristics with empirical calculations and Ansys Fluent simulations. The validity of the RDE steam generator design is reaffirmed, having been successfully analyzed from both the water-flow perspective in previous research and the helium-side perspective in the present study. The analytical methods used herein showed strong consistency, with empirical and numerical simulation results differing by less than 10% across all parameters. Although the calculated shell height of 5.73 m exceeds the RDE design's 4.97 m, the overall design's validity is confirmed.
Comparative Analysis of Real-time and Conventional Overall Equipment Effectiveness Applications in Manufacturing Industry Susilawati, Anita; Yohanes, Yohanes; Putri, Sunny Ineza; Prasetyo, Brian Agung Cahyo; Saputri, Anggraini Dwi; Ihsan, Yaser
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 69 No 3 (2025): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v69i3.570

Abstract

Overall Equipment Effectiveness (OEE) is a comprehensive measure to identify the level of productivity and performance of machines/equipments. Conventional approaches to OEE data processing, such as using Microsoft Excel, have limitations. Consequently, the data processing process becomes less efficient and prone to human error. This study aims to examine the application of OEE in the Manufacturing Industry, measurable performance gaps between conventional and real-time approaches. The methodology used in this study was based on a synthetic literature review to evaluate the effectiveness of both OEE approaches based on existing studies. The transition of OEE from mere calculations to dynamic, real-time, and integrated systems is a direct response to the increasing complexity and competitiveness of the modern manufacturing environment. This study can be used to identify areas for future development and as a reference for further research to provide a guide to OEE practitioners in implementing improvements.
Residential AC Technician Competency Training and Certification (Level 3) in Pekanbaru Brian Agung Cahyo P.; Sunny Ineza Putri; Jheri Hermanto; Anita Susilawati; Dedy Masnur; Dodi Sofyan Arief; Putri Nawangsari; Annisa Wulan Sari; Mintarto .; Hanif Nugroho Aji; Rahmatsyah Maksum Ramsi
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 9 No 1 (2026): Environmental-based Awareness for Agile Community Strength
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v9i1.687

Abstract

This Community Service Activity by the Mechanical Engineering Department of Riau University was a strategic move to address the urgent need for the formalization and quality improvement of Air Conditioner (AC) technicians. The program was based on the official appointment of Mechanical Engineering Unri as a Temporary Competency Test Center by a credible Professional Certification Body (LSP), affirming the institution's role in implementing the National Work Competency Standards (SKKNI). Targeting technicians with a minimum of one year of experience, the program had a dual objective: validating the existing practical skills while enhancing knowledge on crucial aspects like Occupational Health and Safety (K3) and environmentally compliant refrigerant handling. The PKM was implemented through structured stages, commencing with strict recruitment and selection, followed by comprehensive training delivered by Unri's competent lecturers, focusing on core competency units. The culmination was the Competency Test, conducted independently by certified Assessors from the partner LSP at the Unri TUK. The assessors evaluated participants' knowledge, skills, and work attitude through written, oral, and practical examinations. The main outcome of this activity was the successful certification of professional technicians. A total of 10 (ten) AC technicians were declared Competent and officially received the AC Technician Professional Competency Certificate from BNSP. This achievement significantly contributes to upgrading the quality and competitiveness of the local workforce, boosting professionalism, service quality, and career prospects for the certified technicians.