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Redaksi Jurnal Rekayasa Mesin Jurusan Teknik Mesin Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang, Jawa Timur Indonesia 65145
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Rekayasa Mesin
Published by Universitas Brawijaya
ISSN : 23381663     EISSN : 24776041     DOI : 10.21776/ub.jrm
Core Subject : Engineering,
Mechanical Engineering
Rekayasa Mesin is published by Mechanical Engineering Department, Faculty of Engineering, Brawijaya, Malang-East Java-Indonesia. Rekayasa Mesin is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in mechanical engineering. Rekayasa Mesin accepts submission from all over the world, especially from Indonesia. Rekayasa Mesin aims to provide a forum for national and international academicians, researchers and practitioners on mechanical engineering to publish the original articles. All accepted articles will be published and will be freely available to all readers with worldwide visibility and coverage. The scope of Rekayasa Mesin are the specific topics issues in mechanical engineering such as design, energy conversion, manufacture, and metallurgy. All articles submitted to this journal can be written in Bahasa and English Language.
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Articles 43 Documents
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Search results for , issue "Vol. 16 No. 1 (2025)" : 43 Documents clear
STUDI COMPUTATIONAL FLUID DYNAMICS (CFD) UNTUK MENDIAGNOSA KEGAGALAN POMPA INJEKSI AIR Machfud, Adam Aliyya; Cahyapala, Reka Adiyasa; Nurrahman, Ardhi Febrian
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.2131

Abstract

Multistage centrifugal pumps are the critical equipment in the water injection system in oil and gas processing facilities but often fail due to abrasive and corrosive fluids. This research utilized the Computational Fluid Dynamics (CFD) approach to analyze the effect of sand particle size, produced water characteristics, and cavitation on the performance of three-stages API 610 BB3 water injection pumps. CFD simulations were performed by varying the sand particle size (10 μm, 100 μm, 100 μm) and produced water characteristics from three locations. The standard k-ε turbulence model and the Eulerian granular flow approach were utilized to model the multiphase flow. The results showed a decrease in pump efficiency of up to 10.39% dan head of up to 19.08% in 1000 μm particles. Analysis of the corrosion rate based on water characteristics showed the highest value of 0.198 mm/year at the location with the highest chloride content and conductivity. Cavitation zones were identified around the leading edge of the impeller at each stage. This study provides an in-depth understanding of the failure mechanisms of the water injection pumps. It can form the basis for developing effective mitigation strategies, such as design improvement, material selection and overhaul program.
ANALISIS VARIASI INFILL PATTERN TERHADAP KEKUATAN TARIK MATERIAL KOMPOSIT SANDWICH BERLAPIS SERAT KARBON Pramudia, Mirza; Mubarok, Khamdi; Murodah, Nailatul
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.2134

Abstract

Fused Deposition Modeling (FDM) technology plays a significant role in fabricating the core of sandwich composite structures due to its capability to manufacture complex geometries with various infill patterns, enabling the optimization of lightweight and high-strength structures. This study aims to investigate the influence of infill pattern variations on the tensile properties of sandwich composites composed of a PLA core and carbon fiber skins using the hand lay-up method. The infill patterns employed include cubic, gyroid, grid, and honeycomb, each with an infill density of 20%. Specimens were fabricated and assembled according to ASTM D3039 standards, followed by tensile testing to evaluate ultimate tensile strength, elastic modulus, and fracture behavior. The results indicate that the honeycomb pattern achieved the highest tensile strength of 49.85 MPa and stiffness of 1045 MPa, followed by grid (47.44 MPa; 1033 MPa), gyroid (44.75 MPa; 946 MPa), and cubic (43.46 MPa; 945 MPa), establishing honeycomb as the most optimal infill pattern for enhancing mechanical performance.
PERANCANGAN SISTEM MONITORING EVACUATED TUBE SOLAR DRYER STUDI KASUS PROSES PENGERINGAN RUMPUT LAUT Prasetyo, Teguh; Irawan, Ibnu
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.2142

Abstract

This research applies the simples moving average (SMA) method with period of 5 and 10 to filter monitoring data from solar drying system using an evacuated tube collector. Data filtering was used to eliminate measurement noise. Data was collected at five-minutes intervals. These SMA periods were also suitable for measuring humidity both in the environment and inside the drying cabinet. However, for temperature measurements inside the drying cabinet, only the 5-period SMA method could be used, as applying a 10-period SMA resulted in deviations exceeding the specified accuracy limits. In contrast, the monitoring of seaweed mass data did not required the use of SMA method, since its application led to significant measurement deviation from the actual values.

Page 5 of 5 | Total Record : 43

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