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All Journal JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN TANJAK : Jurnal Pengabdian Kepada Masyarakat
Siti Umira
Politeknik Negeri Bengkalis
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Mechanical Engineering Social Sciences

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Rancang Bangun Alat Peraga Sistem Kelistrikan Sepeda Motor Untuk Keperluan Praktikum TBSM SMK3 Negeri Bengkalis Reinaldi Teguh Setyawan; Sunarto; Siti Umira; Irwan Kurniawan Irwan Kurniawan
TANJAK : Jurnal Pengabdian Kepada Masyarakat Vol 6 No 2 (2025): TANJAK : Jurnal Pengabdian Kepada Masyarakat
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ewenwj13

Abstract

The limited availability of electrical training media in motorcycle vocational schools leads to theoretical learning and reduces students’ hands-on experience. This community service project aimed to design, construct, and implement a motorcycle electrical trainer for the Department of Motorcycle Engineering and Business (TBSM) at SMK Negeri 3 Bengkalis. The trainer integrates four main subsystems: lighting, charging, ignition, and electric starter, assembled on a safe and ergonomic educational panel. The method consisted of needs analysis, design, component selection, fabrication, functional testing, module development, and classroom implementation with teacher–student mentoring. Functional tests showed that all subsystems operated according to the design, including protection through fuses and accessible measuring points. Classroom use received positive responses; the trainer was considered relevant to the curriculum and helped students understand circuit flow, perform voltage measurements, and practice basic fault diagnosis. The activity produced a trainer unit, practicum modules, and opportunities for scientific publications and intellectual property.    
THERMAL AND ENERGY ANALYSIS OF AN ICE-MAKING MACHINE USING AN OUTDOOR AC REFRIGERATION SYSTEM Reinaldi Teguh Setyawan; Irwan Kurniawan; Siti Umira
Jurnal Dinamika Vokasional Teknik Mesin Vol. 10 No. 2 (2025)
Publisher : Department of Mechanical Engineering Education

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Abstract

This study investigates the thermal and energy performance of a custom designed ice maker that utilizes a modified outdoor air conditioning (AC) unit as its primary refrigeration system. The objective is to evaluate the feasibility, efficiency, and operational stability of using a household AC condenser unit for small scale ice production, particularly in areas with limited access to commercial ice making equipment. The experimental setup was tested over an 8 hour operation period, with parameters such as input water temperature, ice formation temperature, freezing time, power consumption, Coefficient of Performance (COP), and system efficiency being measured and analyzed. The results show that the system was capable of producing 6.5 kg of ice, with a measured actual COP of 3.05 and an efficiency of 67.78%. Although minor deviations were observed from the design specifications, the overall performance remained within acceptable limits. These findings suggest that repurposing outdoor AC units can provide a cost effective and energy efficient alternative for localized ice production.
Co-Authors Irwan Kurniawan Irwan Kurniawan Irwan Kurniawan Reinaldi Teguh Setyawan Sunarto