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M. A. Ade Saputra
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Jurnal Rekayasa Mesin
Published by Universitas Sriwijaya
ISSN : 14116553     EISSN : 23387009     DOI : https://doi.org/10.36706/jrm.v21i1
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Rekayasa Mesin (JRM) Jurusan Teknik Mesin Universitas Sriwijaya adalah sebuah jurnal blind peer-review yang didedikasikan untuk publikasi hasil penelitian yang berkualitas dalam bidang ilmu Teknik Mesin namun tak terbatas secara implisit. Semua publikasi di Jurnal Rekayasa Mesin ini bersifat akses terbuka yang memungkinkan artikel tersedia secara bebas online tanpa berlangganan apapun
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 63 Documents
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Pemanfaatan Panel Surya Fotovoltaik untuk Energi Berkelanjutan di Daerah Terpencil Sari, Dewi Puspita; Wadirin, Wadirin; Setiyo, Edi; Adanta, Dendy; Marwani, Marwani; Costa, Anthony
Jurnal Rekayasa Mesin Vol. 25 No. 1 (2025): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v25i1.1405

Abstract

This study explores the utilization of photovoltaic solar panels as a source of electrical energy to meet the needs in hard-to-reach areas. Using experimental methods, data were collected during observations from September 13 to September 18, 2024, encompassing measurements of voltage, current, and solar radiation intensity. The results indicate that the highest panel efficiency reached 25.12%, while the lowest was 19.25%, significantly influenced by sunlight intensity and panel temperature. Additionally, the highest convective heat transfer coefficient was recorded for Panel 1 at 96.64 W/m²K, showing a direct relationship with thermal conditions. This research emphasizes the importance of system design and the management of environmental factors to enhance panel efficiency. These findings open opportunities for the development of cooling technologies and more efficient energy conversion in the future.
PERTAMAX DAN PERTALITE PADA KINERJA MESIN GASOLINE ENGINE KAPASITAS 2800 WATT Setiyo, Edi; Sari, Dewi Puspita; Wadirin, Wadirin; Costa, Anthony; Adanta, Dendy; Marwani, Marwani; Hermawan, Rudi
Jurnal Rekayasa Mesin Vol. 25 No. 1 (2025): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v25i1.1408

Abstract

This study evaluates the impact of RON 90 and RON 92 fuels on the performance of a 4-stroke engine with a capacity of 2800 Watts. In the applied methodology, a 2800 Watt two-wheeler vehicle was used to test torque, power, and specific fuel consumption (SFC) at various engine speeds. The results show that RON 92 has better torque at 4000 RPM, while RON 90 exhibits higher torque at speeds approaching 7500 RPM. Power analysis indicates that both fuels produce the same maximum power of 8.7 HP, although it is achieved at different engine speeds. Meanwhile, in terms of SFC, RON 92 is more efficient at lower speeds, but the difference narrows at higher speeds. These findings provide insights into the performance of both types of fuel and their use in engine applications.
ANALISIS CACAT PENYUSUTAN DAN NILAI KEKERASAN PRODUK COR ALUMINIUM SKRAP DENGAN VARIASI UKURAN MILD STEEL CYLINDER MOLD Nurhabibah Paramitha Eka Utami; Pratiwi, Diah Kusuma; Chandra, Hendri; Ellyanie, Ellyanie; Gustini, Gustini; Astuti, Astuti
Jurnal Rekayasa Mesin Vol. 25 No. 1 (2025): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v25i1.1414

Abstract

The research was conducted to investigate the effect of mold diameter variation on the hardness and shrinkage of cast products made from aluminum scrap. Three mold diameter variations were used in the casting process: 50 mm, 70 mm, and 100 mm. The testing methods included shrinkage measurement, Brinell hardness testing, and dye penetrant inspection. The test results showed that the 50 mm sample had the highest hardness value of 52.09 BHN and the lowest shrinkage defect of 25.25%, while the 100 mm diameter sample exhibited the lowest hardness value of 48.72 BHN and the highest shrinkage defect of 28%. This phenomenon occurred due to differences in cooling rates during the solidification process, where larger mold diameters experienced slower cooling, resulting in coarser microstructure grains and a higher occurrence of shrinkage defects.

Page 7 of 7 | Total Record : 63

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