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All Journal Turbo : Jurnal Program Studi Teknik Mesin Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Jurnal Polimesin Prosiding SNTTM Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development
Agus Nuramal
Mechanical Engineering, University of Bengkulu
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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SIMULASI DUDUKAN LOADING-UNLOADING PANSER MORTIR MENGGUNAKAN SOFTWARE SOLIDWORKS Izza, Rohul; Nuramal, Agus; F. Alqap, A. Sofwan
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 2 (2025): Oktober 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i2.39682

Abstract

The loading-unloading stand is part of the Panzer mortar loading-unloading tool which functions to hold the mortar and move the mortar from a vertical position to a horizontal position. In this test, the aim was to design a panzer mortar loading-unloading stand using Solidworks software, to find out how to simulate a loading-unloading stand and to determine the strength of the load on the panzer mortar loading-unloading stand. The simulation process on the loading-unloading stand was carried out to determine the von Mises stress, displacement and strain. von Mises stress and strain testing obtained a maximum result of 3,516 MPa and 5,744%  at the end of the shaft, displacement testing obtained a maximum result of 7,726 mm at the center of the shaft. The minimum factor of safety for loading- unloading stands is around 25.5 This occurs due to changes in the shape of the object being applied.
PREVENTIVE MAINTENANCE CLOSED COOLING WATER PUMP TURBINE PADA PLTU PRIAMANAYA ENERGI KEBAN AGUNG LAHAT 2 X 135 MW Satria, Miko; Nuramal, Agus; Mainil, Afdhal Kurniawan; Helmizar
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 2 (2025): Oktober 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i2.39688

Abstract

Preventive maintenance is a maintenance and care activity carried out to prevent unexpected damage and to find conditions or circumstances that can cause production facilities to experience damage during the production process. The purpose of the research conducted by the author is to determine the implementation of preventive maintenance on the closed cooling water pump turbine at the Priamanaya Energi Keban Agung Lahat 2 x 135 MW PLTU, this research was conducted using the observation method or going directly to the field. This research resulted in that by carrying out preventive maintenance regularly and effectively on the closed cooling water pump at this PLTU, the company can ensure that they not only maintain smooth and efficient operations, but also reduce the risk of damage that can disrupt production.
EFEK MAGNUS PADA PERMAINAN TENIS MEJA Nuramal, Agus; Deviya, Aprilman; Vatresia, Arie
Dharmakayana Vol 1 No 1 (2024): Mei : Dharmakayana: Journal of scientists, engineers, educators and scientific ac
Publisher : Program Studi Teknik Mesin, Fakultas Teknik Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/dk.v1i1.36248

Abstract

The Magnus effect is about the formation of pressure difference around a cylindrical or spherical projectile rotating in the flow of fluid. This difference causes forces acting on the projectile changing the direction of the projectile movement. Little understanding to Magnus effect concept is necessary for every activist in the sport area playing with ball. Discussing about the Magnus effect for the direction case of the ball in table tennis made them interested, e.g. the cases of empty shots, top spin, back spin, and side spin each produces different ball direction characteristics.
Pemberdayaan Masyarakat Melalui Pelatihan Pembuatan Kompos dengan Memanfaatkan Limbah Pelepah Sawit di Pematang Gubernur Nuramal, Agus; Eka Putra, Rama Dani; zuliantoni, Zulian; Supardi, Nurul Iman
Dharmakayana Vol 2 No 2 (2025): November : Dharmakayana: Journal of scientists, engineers, educators and scientif
Publisher : Program Studi Teknik Mesin, Fakultas Teknik Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/dk.v2i2.45790

Abstract

Palm oil frond waste is a type of agricultural waste that is quite abundant in Pematang Gubernur Village, Muara Bangkahulu District, Bengkulu City. To date, this waste has not been optimally utilized and tends to be discarded, thus potentially polluting the environment. This community service activity aims to improve community knowledge and skills in processing palm oil frond waste into compost through hands-on training (learning by doing). The implementation method includes identifying partner needs, counseling, technical training in composting, practical assistance, as well as evaluation and follow-up. The results of the activity show an increase in community knowledge and skills in composting, the formation of compost products resulting from the training, the development of training modules, and the formation of community-based compost processing groups. This activity proves that utilizing palm oil frond waste can be an environmentally friendly solution while supporting community food security.
Design, simulation, and experimental validation of a 50 kg biomass-fired coffee drying oven Nuramal, Agus; Jaya, Efran Riansyah Rahmat; Suryadi, Dedi; Zuliantoni1, Zuliantoni; Hardiansyah, Hardiansyah; Putra, Rama Dani Eka
Jurnal Polimesin Vol 24, No 1 (2026): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i1.8603

Abstract

Despite coffee is one of the leading commodities in Bengkulu Province, the traditional drying process of coffee beans for 10-14 days are still a common practice. This research aims to design, fabricate, and evaluate the thermal performance of a 50 kg capacity wood-fueled coffee drying oven. A three-dimensional CFD model was developed using ANSYS Fluent to analyze temperature distribution within the drying chamber and optimize thermal performance prior to fabrication. Experimental testing was conducted to validate the numerical predictions under controlled operating conditions. The proposed technology is distinguished by its use of locally available biomass fuel. The results of the coffee drying oven simulation, under empty conditions, achieved the desired temperature based. The drying time for coffee beans in this research was 9 hours, achieving a moisture content of 10% to 13% (a moisture content of 12.5% is the Indonesian National Standard. Simulation results predicted chamber temperatures ranging from 67°C to 87°C with an inlet temperature of approximately 100°C, indicating adequate thermal conditions for drying. Experimental measurements showed good agreement with the CFD model, reaching near-steady thermal conditions within 25 minutes.
Design and thermo-mechanical analysis of a food packaging machine using ansys simulation Putra, Rama Dani Eka; Nuramal, Agus
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/3qk4x982

Abstract

Perancangan mesin pengemasan pangan membutuhkan analisis yang cermat terhadap pengaruh beban termal dan mekanik, mengingat kondisi operasi dapat menimbulkan konsentrasi panas serta tegangan yang berpotensi mempercepat kegagalan struktur. Penelitian ini bertujuan untuk menganalisis perilaku termo-mekanik mesin press pengemasan makanan menggunakan perangkat lunak ANSYS dengan pendekatan Finite Element Analysis (FEA). Simulasi dilakukan untuk mengevaluasi distribusi temperatur, deformasi akibat beban puntir, serta tegangan ekivalen Von-Mises pada rangka mesin. Hasil simulasi perpindahan panas menunjukkan bahwa suhu maksimum mencapai 85,34 °C setelah 120 detik, dengan distribusi panas yang terlokalisasi pada area sekitar poros tengah, sedangkan bagian rangka utama relatif stabil pada suhu 28 °C. Analisis deformasi memperlihatkan adanya perubahan dimensi lokal di sekitar pusat pemanasan, namun tidak menyebar secara signifikan ke seluruh struktur. Sementara itu, simulasi tegangan Von-Mises mengindikasikan tegangan maksimum sebesar 182,45 MPa pada bagian atas rangka, sedangkan bagian bawah hampir tidak menerima tegangan berarti. Temuan ini menunjukkan bahwa mesin memiliki titik kritis pada area tertentu yang rentan terhadap beban kombinasi termal dan mekanik. Penelitian ini memberikan kontribusi dalam pengembangan desain mesin pengemasan pangan yang lebih andal melalui identifikasi area rawan serta rekomendasi perbaikan struktur.
Co-Authors Afdhal Kurniawan Mainil Alqap, A. Sofwan F Angky Puspawan Anugrah, Dwi Permana Arie Vatresia Dedi Suryadi Dedi Wahyudi Deviya, Aprilman Eka Putra, Rama Dani Falah, Sabilul Hadi Susanto, Tri Nugroho Hardiansyah Hardiansyah Hasibuan, Zulfahmi Matumona Helmizar Hendri Hestiawan Hidayatullah, Nasrul Ikhwanusshofa, Muhammad Izza, Rohul Jaya, Efran Riansyah Rahmat Lesmana, Pandu Nopita, Dian Nur ‘Azah Nurul Iman Supardi Pratama, Gilang Giyas Pratama, Samuel Yoga Putra, Rama Dani Eka Rosa, Khairul Amri Rosa, M. Khairul Amri Satria, Miko Yovan Witanto Yueprayuga, Abie zuliantoni, Zulian Zuliantoni1, Zuliantoni