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All Journal Journal of Electrical Vocational Education and Technology Journal Serambi Engineering (JSE)
Sofy Fitriani
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Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Iron Ball Launcher Platform Control System for Impact Test at Glass Testing Laboratory Iwan Awaludin; Muhammad Rizqi Sholahuddin; Yudi Widhiyasana; Sofy Fitriani
Jurnal Serambi Engineering Vol. 10 No. 4 (2025): Oktober 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study presents the digital transformation of a glass impact test system at the Center for Standardization and Services for the Ceramic and Non-Metallic Mineral Industry (BBK) through Industry 4.0 integration. The legacy system faced challenges including manual distance measurement, outdated safety components, mechanical momentum causing positioning inaccuracy, and inability to sequentially launch multiple iron balls. To address these, a phased approach was implemented: analysis, design, implementation, and testing of a digital control system. Key upgrades included LIDAR-based wireless distance sensing (up to 9 meters), RS-485 communication for reliable data transfer, replacement of 1980s-era fuses with modern Mini Circuit Breakers, and algorithmic compensation for mechanical delay. A microcontroller-based control system enabled automated height adjustment, mode selection per national standards, and sequential ball release. The system was tested across six height settings with five trials each, achieving an error rate below 1% in all cases. Results confirm enhanced precision, safety, and efficiency. This targeted digitalization demonstrates how Industry 4.0 technologies can modernize legacy testing equipment without full replacement, offering a cost-effective, scalable model for industrial laboratories undergoing digital transformation.
Performance Analysis of Small-Scale Educational Solar Photovoltaic Modules Based on Irradiation Variations and Environmental Temperature in Cimahi City Ridwan Nurdin; Sri Paryanto Mursid; Sri Utami; Muhamad Irfan Nurdin; Sofy Fitriani
Journal of Electrical Vocational Education and Technology Vol. 9 No. 1 (2026): Journal of Electrical Vocational Education and Technology, Volume 9 Issue 1, Ju
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JEVET.0091.03

Abstract

Abstract This study aims to evaluate the operational characteristics of a 50 Wp polycrystalline photovoltaic (PV) module under actual environmental conditions as a basis for developing renewable energy practicum media. The research method was carried out through field testing in Cimahi City with parameters including solar irradiation, panel temperature, and electrical parameters (voltage, current, and power) recorded at five-minute intervals. The results of data analysis showed a strong correlation between irradiation intensity and output power, with a coefficient of determination (R²) of 0.93. The results showed that output power increased with increasing irradiation, while increasing panel temperature decreased output voltage. Panel efficiency was in the range of 9.2%-13.1%, lower than manufacturer specifications due to non-STC environmental conditions and system losses. Nevertheless, the PV module proved effective as a project-based learning medium that was able to provide students with a practical understanding of the influence of environmental factors on the performance of photovoltaic systems. Abstrak Penelitian ini bertujuan untuk mengevaluasi karakteristik operasional modul fotovoltaik (PV) polikristal 50 Wp pada kondisi lingkungan aktual sebagai dasar pengembangan media praktikum energi terbarukan. Metode penelitian dilakukan melalui pengujian lapangan di Kota Cimahi dengan parameter yang meliputi iradiasi matahari, suhu panel, serta parameter listrik (tegangan, arus, dan daya) yang direkam pada interval lima menit. Hasil analisis data menunjukkan adanya korelasi yang kuat antara intensitas iradiasi dan daya keluaran, dengan koefisien determinasi (R²) sebesar 0,93. Hasil penelitian menunjukkan bahwa daya keluaran meningkat seiring dengan bertambahnya iradiasi, sedangkan kenaikan suhu panel menurunkan tegangan keluaran. Efisiensi panel berada pada rentang 9,2%–13,1%, lebih rendah dari spesifikasi pabrikan akibat kondisi lingkungan yang tidak sesuai dengan STC (Standard Test Conditions) serta adanya rugi-rugi sistem. Meskipun demikian, modul PV terbukti efektif sebagai media pembelajaran berbasis proyek yang mampu memberikan pemahaman praktis kepada mahasiswa mengenai pengaruh faktor lingkungan terhadap kinerja sistem fotovoltaik.
Co-Authors Iwan Awaludin Muhamad Irfan Nurdin Muhammad Rizqi Sholahuddin Ridwan Nurdin Sri Paryanto Mursid SRI UTAMI Yudi Widhiyasana