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Contact Name
Muh Anhar
Contact Email
aan@politap.ac.id
Phone
+6282256817771
Journal Mail Official
aan@politap.ac.id
Editorial Address
Jl.Rangga Sentap,Dalong Sukaharja 78813 Ketapang ,Kalimantan Barat Jl.Rangga Sentap
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Kab. ketapang,
Kalimantan barat
INDONESIA
Jurnal Teknik Mesin
ISSN : -     EISSN : 31235425     DOI : https://doi.org/10.58466/
JTM : JURNAL TEKN IK MESIN di https://jurnal.politap.ac.id/index.php/jtm merupakan jurnal blind peer-review yang didedikasikan untuk publikasi hasil penelitian berkualitas di bidang Teknik Mesin dan Inovasi Teknologi . Artikel yang dimuat di Jurnal Jurnal Teknik Mesin meliputi hasil penelitian ilmiah asli (prioritas utama), sedangkan untuk artikel review ilmiah yang baru (bukan prioritas utama) dan juga komentar yang bersifat kritis terhadap hasil karya ilmiah yang diterbitkan jurnal Jurnal Teknik Mesin. Semua publikasi di jurnal Jurnal Teknik Mesin bersifat akses terbuka yang memungkinkan artikel tersedia secara online secara bebas tanpa berlangganan apa pun
Articles 33 Documents
Analisis Desain PLTB Horizontal 0,3 kW Berbasis QBlade di Tangerang Eri Prabowo; Trassanda Scudetto Widestomo Putra; Tom Rizkon Uzarni Paradongan
JTM : JURNAL TEKNIK MESIN Vol 2 No 2 (2026)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/rk1hyc07

Abstract

  The low utilization of small-scale wind energy in urban residential areas requires a technical design approach that considers local wind speed, blade geometry, rotor configuration, and generator suitability. This paper analyzes a 0.3 kW horizontal-axis wind power design for the Grand Duta residential area, Tangerang, using the QBlade simulation approach. The design uses a three-blade horizontal rotor with a 2 m rotor radius, NACA 4412 airfoil, and taperless blade concept. Wind data were obtained from BMKG and direct anemometer measurements, then simplified into design parameters. The local average wind speed used in the design was approximately 4 m/s, with cut-in, rated, and cut-out references of 2.8 m/s, 8.0 m/s, and 12.0 m/s, respectively. The selected blade design used NACA 4412 with an optimum angle of attack of 6 degrees, Cl/Cd of 133.5, and Cl of 1.12. The QBlade simulation at 0 degree pitch showed that the rotor produced 252.676 W at 4 m/s and 300 rpm, while the maximum simulated power reached 2324 W at 20 m/s. At 6 degree pitch, the maximum simulated power reached 2837 W. The results indicate that the design is technically feasible as a small horizontal-axis wind turbine concept, although further prototype testing is required to validate structural strength, generator matching, and field performance.
Evaluasi Efisiensi Boiler Pulverized Coal pada Co-Firing Sawdust PLTU Pacitan Eri Prabowo; Trassanda Scudetto Widestomo Putra; Muhammad Sayid Romdhoni
JTM : JURNAL TEKNIK MESIN Vol 2 No 2 (2026)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/njh5st52

Abstract

This study evaluates boiler efficiency in a pulverized-coal steam power plant during direct co-firing of sawdust biomass at PLTU Pacitan Unit 1. The analysis uses operational and performance-test data for coal firing and co-firing schemes with 1%, 2%, and 5% sawdust at approximately 295 MW load. Boiler efficiency was calculated using the indirect heat-loss method based on ASME PTC 4, supported by fuel ultimate and proximate analysis, heat-loss components, fuel rate, air-heater gas temperature, and emission measurements. The results show that increasing sawdust composition changes fuel characteristics, especially lower gross calorific value, lower sulfur and ash content, higher total moisture, and lower Hardgrove Grindability Index. Boiler efficiency on an LHV basis reached 91.96% for 100% coal, 92.61% for 1% sawdust, 92.30% for 2% sawdust, and 91.74% for 5% sawdust. At 5% co-firing, fuel consumption increased by about 1.19% compared with coal firing, while SO2, NOx, and particulate emissions decreased and remained below the regulatory limits. The study indicates that sawdust co-firing can support emission reduction, but boiler efficiency and fuel handling require continuous monitoring
Evaluasi Operasi PLTD Kamanggih Pasca-Interkoneksi pada Sistem Waingapu Eri Prabowo; Trassanda Scudetto Widestomo Putra; Abdal Ghofar
JTM : JURNAL TEKNIK MESIN Vol 2 No 2 (2026)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/21ca3t15

Abstract

This study evaluates the operational effect of connecting PLTD Kamanggih to the Waingapu system through a 20 kV interconnection network. The study used operational, production, fuel, lubricant, cost, and system-capacity data from January 2023 to June 2024. The main indicators were Specific Fuel Consumption (SFC), Specific Lubricant Consumption (SLC), and Cost of Electricity Production (BPP). Before interconnection, PLTD Kamanggih had higher SFC, SLC, and BPP than PLTD Waingapu, namely 0.41661 liter/kWh, 0.00401 liter/kWh, and 5,785.48 Rp/kWh, while PLTD Waingapu recorded 0.27945 liter/kWh, 0.00012 liter/kWh, and 3,160.71 Rp/kWh. After the interconnection, Kamanggih's 0.114 MW load was supplied by the Waingapu system, which still had sufficient available capacity. The best comparison occurred between the second quarter of 2023 and the second quarter of 2024, where SFC decreased by 0.00729 liter/kWh or 2.59%, SLC decreased by 0.00012 liter/kWh or 73.94%, and BPP decreased by 87.57 Rp/kWh or 2.63%. The result indicates that 20 kV interconnection is effective as a dedieselization strategy to improve operational efficiency, reduce isolated diesel operation, and lower electricity production cost.

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