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Sosialisasi Penerapan Kesehatan dan Keselamatan Kerja Sebagai Upaya Antisipasi Potensi Bahaya Kerja Pada Bengkel Las Desa Luminu, Bantur Malang Bagus Sriwijaya; Ratna Fajarwati Meditama; Ary Kusuma Purwady; Bella Cornelia Tjiptady; Luchyto Chandra Permadi; Faisol Khoufi Asshidiqi; Kiki Darmawan
I-Com: Indonesian Community Journal Vol 4 No 2 (2024): I-Com: Indonesian Community Journal (Juni 2024)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/icom.v4i2.3598

Abstract

Kesehatan dan keselamatan kerja (K3) merupakan bidang yang terkait dengan kesehatan, keselamatan, dan kesejahteraan manusia yang bekerja di sebuah institusi maupun di lokasi proyek. Pengabaian prosedur K3 sering terjadi di kawasan pedesaan atau kawasan lingkungan kerja dengan menejemen prosedur K3 yang minim sehingga banyak dampak yang timbul karena suasana kerja yang tidak efisien dan sering memungkinkan terjadinya kecelakaan kerja. Tujuan pengabdian ini untuk menganalisa serta mensosialisasikan pentingnya penerapan prosedur K3. Metode yang dilakukan pada penlitian ini berupa analisis problem yang dapat menimbulkan dampak kecelakaan akibat kerja serta sosialisasi tentang pentingnya penerapan prosedur K3. Dari observasi yang telah dilakukan ditemukan berbagai macam kondisi kerja yang tidak sesuai dengan penerapan prosedur K3 yang telah ditetapkan pemerintah sebagai standart pengoperasian kerja. Dari pembahasan yang telah dijelaskan dapat diambil kesipulan bahwa penggunaan aturan penerapan prosedur sangat penting agar supaya tercipta kondisi lingkungan kerja yang aman dan nyaman serta terhindar dari kecelakaan kerja.
Analysis of Heat Rate Co-firing Pacitan PLTU Kiki Darmawan; Luchyto Chadra Permadi; Bella Cornelia Tjiptady; Ratna Fajarwati Meditama; Indah Martha Fitriani; Faisol Khoufi Asshidiqi
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6211

Abstract

Through RUEN in 2025, the government is launching a co-firing program for coal-fired power plants towards achieving net zero emissions. Biomass is one solution to replace or replace fossil fuels in the field of energy supply. Some of the energy plants commonly used for co-firing are calliandra and gamal. The aim of this research is to analyze the Heat Rate efficiency of the use of calliandra and gamal biomass. This research method in quantitative form to achieve measurable results. The results of the analysis of using calliandra biomass at a percentage of 5% produce an NHPR of 2975 kCal/kWh. This value is greater than the use of gamal biomass at a percentage of 5% with a GHPR of 2942 kCal/kWh, and using a percentage of 10% produces an NHPR of 2986 kCal/kWh and at 10% gamal co-firing it produces an NHPR of 2920 kCal/kWh, the smallest thermal efficiency value is produced when the plant uses 10% kalindran co-firing with a value of 30.9%. and the highest thermal efficiency of the generator is when 10% galvanic co-firing is used.
Continuously Variable Transmission Roller Mass Analysis with Drive Pulley Angle Variations of 13.5° and 12° on a 150 cc V - Matic Automatic Transmission Motorcycle Luchyto Chandra Permadi; Mojibur Rohman; Ratna Fajarwati Meditama; Bella Cornelia Tjiptady; Faisol Khoufi Asshidiqi; Mudrikah Mudrikah; Bagus Sriwijaya
G-Tech: Jurnal Teknologi Terapan Vol 10 No 3 (2026): G-Tech, Vol. 10 No. 3 July 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i3.10171

Abstract

The Continuously Variable Transmission (CVT) system plays a crucial role in transmitting power from the engine to the drive wheels while automatically adjusting the transmission ratio according to vehicle speed and load conditions. Automatic transmissions have gained widespread attention in the automotive industry due to their high efficiency, smooth gear shifting, cost-effectiveness, and enhanced driving comfort. This study aims to investigate the effect of drive pulley angle variation and roller weight on the performance characteristics of a CVT system, particularly in terms of power output, torque, vehicle speed, and acceleration. An experimental method was employed by modifying the drive pulley angle and roller weight configurations, followed by performance testing using a dynamometer (dynotest). Several combinations of pulley angles and roller weights were evaluated to determine the optimal configuration for vehicle performance. The results indicate that a drive pulley angle of 13.5° combined with a 10-gram roller produced the most stable torque and power characteristics across low to high engine speeds. This configuration also provided superior acceleration performance and smoother power delivery under urban driving conditions. The findings offer practical insights for optimizing CVT design and tuning to improve vehicle efficiency, responsiveness, and overall driving performance.