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All Journal Media Mesin: Majalah Teknik Mesin Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Pendidikan Vokasi Otomotif Jurnal Talenta Sipil jes Majalah Teknik Mesin
Umurani, Khairul
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Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Evaluasi Penerapan Keselamatan dan Kesehatan Kerja Bekerja di Ketinggian pada Konstruksi Bangunan Gedung Rahmatullah, Rahmatullah; Andri, Andri; Umurani, Khairul; Fathimah, Hafizah Siti; Hafiz, Muhammad
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.915

Abstract

Building construction work is one of the sectors with a high risk of work accidents, especially in activities at height. This risk is influenced by project dynamics, limited workforce experience, work environment conditions, and weak implementation of occupational safety and health (K3) management. This study aims to identify the main problems in construction work at height and evaluate the implementation of applicable K3 regulations, standards, methods, and techniques. The focus of the study is directed at the consistent application of K3 Construction methods and regulations at the stages of implementing lower structure, basement, architecture, upper structure, mechanical, electrical, plumbing (MEP) to testing and specifically for upper structure and MEP work, K3 Construction methods and regulations and K3 working at height are applied. The research method used is evaluative-qualitative with field observation and document analysis, followed by integrated application of K3 procedures on the projects studied. The results of the study after the joint application, references, standard procedures, regulations, K3 construction methods and K3 working at height that are consistent in the construction projects that have been observed, it is concluded that the method has been able to significantly minimize work accidents in the workplace.
Analisis Ketidakstabilan Beban Arus Netral dan Rugi-Rugi Daya Pada Trafo Distribusi Penyulang Pas 21 PT. PLN UPB Banda Aceh Suriadi; Sara, Ira Devi; Syuhada, Ahmad; Masri; Asri; Umurani, Khairul
Journal of Engineering and Science Vol. 2 No. 2 (2023): July-December 2023
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v2i2.167

Abstract

This research focuses on analyzing power losses due to load imbalance in the medium-voltage distribution network in Pasar Aceh. The aim is to determine the magnitude of power losses that occur at the distribution substation in Pasar Aceh. The research method involves analysis, calculations, and simulations using the ETAP 12.6 software. The results of the analysis indicate that load imbalance in the Pasar Aceh substation leads to power losses. The Trafo Samping Pasar Aceh experiences power losses of 0.77% with a load imbalance of 16.33%. The second transformer in the BNI 46 area incurs power losses of 0.98% with a load imbalance of 30.33%, and the transformer in the BLKG KOTTY area has power losses of 1.17% with a load imbalance of 50.33%. These findings affirm that the greater the load imbalance, the higher the resulting power losses in the electrical distribution network.
Analisis Ketidakstabilan Beban Arus Netral dan Rugi-Rugi Daya Pada Trafo Distribusi Penyulang Pas 21 PT. PLN UPB Banda Aceh Suriadi; Sara, Ira Devi; Syuhada, Ahmad; Masri; Asri; Umurani, Khairul
Journal of Engineering and Science Vol. 2 No. 2 (2023): July-December 2023
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/jes.v2i2.167

Abstract

This research focuses on analyzing power losses due to load imbalance in the medium-voltage distribution network in Pasar Aceh. The aim is to determine the magnitude of power losses that occur at the distribution substation in Pasar Aceh. The research method involves analysis, calculations, and simulations using the ETAP 12.6 software. The results of the analysis indicate that load imbalance in the Pasar Aceh substation leads to power losses. The Trafo Samping Pasar Aceh experiences power losses of 0.77% with a load imbalance of 16.33%. The second transformer in the BNI 46 area incurs power losses of 0.98% with a load imbalance of 30.33%, and the transformer in the BLKG KOTTY area has power losses of 1.17% with a load imbalance of 50.33%. These findings affirm that the greater the load imbalance, the higher the resulting power losses in the electrical distribution network.
Utilization and Experimental Use of Stainless Steel Metal Scrap Machinery Waste, St-40 Iron, Copper and Aluminum to Reduce Co, Hc, Co2 Elements in Vehicle Exhaust Siregar, Ahmad Marabdi; Siregar, Chandra A; Umurani, Khairul
Jurnal Pendidikan Vokasi Otomotif Vol. 6 No. 2 (2024): (Mei)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v6i2.73269

Abstract

Air pollution due to motor vehicle exhaust emissions is increased. Polluted air harms human health dan the environment. Consequently, it is essential to make a sustained effort to reduce air pollution. The purpose of this research is to investigate the effect of adding aluminum scrap to the exhaust system of a motor vehicle on gas emissions composition. The motor vehicle exhaust system was modified to accommodate aluminum scrap placement. A gas analyzer was utilized to observe exhaust gas composition, such as carbon dioxide, hydrocarbon, and carbon monoxide.  Aluminum scrap with different masses was wrapped around the exhaust's inner tube in 50 gr, 70 gr and 90 gr. The engine speed was maintained at 500 rpm throughout the testing process. It was found that the temperature of the outer exhaust tube is in a range of 40 degrees Celsius to 50 degrees Celsius. The results revealed that the most appropriate amount of aluminum scrap was 90 gr n to reduce carbon monoxide, hydrocarbon, and carbon dioxide in an exhausts gas. The surprising outcome was 76.78 % of carbon monoxide content declined, and furthermore hydrocarbon, and carbon dioxide content were deteriorated by 61.63% and 78.37%, respectively.
Co-Authors A, Affandi Affandi Ahmad Marabdi Siregar Ahmad Syuhada Amiruddin, Arfis Andri Andri Arya Rudi Nasution Asfiati, Sri Asri F, Fadhlurrohman Fathimah, Hafizah Siti Hadi Sucipto, Hadi Ira Devi Sara Masri Muhammad Hafiz Muharnif M Nurdin Hendri Pratama, Riza Fauzi Putera, Tondi Amirsyah Rahmatullah . Rahmatullah Rahmatullah Refan, Muhammad Sandi, Didik Mei Saputra, Andrea Siregar, Chandra A Siregar, Munawar Alfansury Suriadi Wahyu Kurniawan Wawan Septiawan Damanik Zufri, M Sayid