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Journal Mechanical Engineering
Published by Politeknik Negeri Ambon
ISSN : -     EISSN : 29884977     DOI : https://doi.org/10.31959
Core Subject : Engineering,
Industrial & Manufacturing Engineering Mechanical Engineering
Manufaktur, Perawatan, Otomotif, Teknik Produksi Migas dan Teknologi Rekayasa Sistem Mekanikal Migas
Arjuna Subject : Teknik (semua kategori) - Mekanik Material
Articles 3 Documents
 1 
Search results for , issue "Vol. 3 No. 3 (2025): DESEMBER" : 3 Documents clear
ANALISIS PERBANDINGAN PENGGUNAAN BIODIESEL B35 DAN B40 TERHADAP KINERJA MOTOR DIESEL DI PLTMG SERAM PEAKER La Idi, Adi Septi; Waas, Kristofol; Talakua, Clay
Journal Mechanical Engineering Vol. 3 No. 3 (2025): DESEMBER
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v3i3.3643

Abstract

This study analyzes the effect of using B35 and B40 blended biodiesel fuels on the performance of a MAN 12V 51/60 DF diesel engine at the Seram Peaker Gas Engine Power Plant (PLTMG). The background for this research is the national mandatory biodiesel policy, which continues to increase its blend ratio. The results show that by using 1 kg of fuel, the B35 blend can produce 12.486 MW of power with a fuel consumption of 0.2100 kg/kWh, an effective thermal efficiency of 20.31%, and a mechanical efficiency of 0.91092. Meanwhile, the B40 blend produces 12.367 MW with a higher fuel consumption of 0.21884 kg/kWh, an effective thermal efficiency of 18.92%, and a mechanical efficiency of 0.887581. These data indicate that increasing the biodiesel content from B35 to B40 tends to decrease the power output and engine efficiency, while fuel consumption increase.  Keywords: Biodiesel, B35, B40, Diesel Engine Performance.
Rancang Bangun Prototipe Heat Exchanger Type Shell and Tube Arah Aliran Searah Hatuwe, Azmain N; Hayoto, Anisa Muhammad; Waas, Kristofol
Journal Mechanical Engineering Vol. 3 No. 3 (2025): DESEMBER
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v3i3.3694

Abstract

This research aims to analyze the design and fabrication of a parallel-flow shell-and-tube heat exchanger prototype. The research was motivated by the need for concrete and effective practical learning media in the Mechanical Engineering Department of Ambon State Polytechnic, which is currently limited to theoretical material. The design method for this device uses a "build and build" approach. This design combines a 6 mm diameter aluminum pipe for the hot fluid tube and a 4 inch diameter galvanized iron pipe as the shell for the cold fluid. The fluid used for the hot and cold sides is water. The mass flow rates applied to the hot and cold fluids are 0.089 kg/s and 0.12572989 kg/s, respectively. The design calculations resulted in the creation of a prototype exchanger with a shell length of 0.5 m, an outer tube diameter of 0.006 m, and 74 aluminum tubes. Leakage testing was conducted using compressed air at 16 psi for 5 minutes. No leaks were found during the test. Keywords : heat exchanger,, shell and tube, parallel flow
ANALISA KINERJA ELECTRICAL SUBMERSIBLE PUMP (ESP) UNTUK OPTIMASI PRODUKSI SUMUR RPD PADA LAPANGAN RPT ZONA 11 JAWA TIMUR Tuasamu, Raypaldri; Subekti, Henk; Azmain Noor Hatuwe
Journal Mechanical Engineering Vol. 3 No. 3 (2025): DESEMBER
Publisher : Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v3i3.3776

Abstract

In the oil industry, Indonesian oil wells that initially could flow fluids naturally (natural flow) experience declining reservoir pressure over time, necessitating artificial lift methods. The RPD well in the RPT Field Zone 11 East Java uses an Electrical Submersible Pump (ESP) as an artificial lift method. This research aims to analyze ESP performance, optimize production, and assess the economic feasibility of its use. Analysis was conducted using the Inflow Performance Relationship (IPR) method with Vogel's equation to understand well production capability. The analysis results show that the maximum production rate (Qmax) of the RPD well is 1108 bpd, with a pump volumetric efficiency of 63%. Field testing produced 698 bpd at 94% water cut. For optimization, a comparison was made between ESP pump type DN1300 with 165 stages and ESP pump type TA1500 with 175 stages, resulting in an increase in volumetric efficiency from 63% to 68% and production increase from 698 bpd to 785 bpd. Economic analysis indicates that the reactivation of the RPD well using ESP is financially viable, with a Net Present Value (NPV) of $771,744, Internal Rate of Return (IRR) of 78.98%, and Benefit-Cost (B/C) ratio of 26.64 before optimization. After optimization with the TA1500 pump type, there was an economic improvement with NPV $812,450, IRR 84.15%, B/C ratio 30.21, and Pay Out Time (POT) reduced from 1.24 years to 1.08 years. Sensitivity analysis proves that this project remains economically viable under various scenarios of oil price changes, operational costs, and discount rates Keywords: Natural flow, Artificial lift, Electricial Submersible pump, Efficiency, Production optimization, Economic analysis.

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