cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Eswanto
Contact Email
irajtma@irapublishing.com
Phone
+62895321333935
Journal Mail Official
irajtma@irapublishing.com
Editorial Address
Perum Graha Garuda Mas Blok II No. 39 Dusun V Desa Sigara-Gara Kecamatan Patumbak Kabupaten Deli Serdang Provinsi Sumatera Utara, Indonesia, Kode Pos: 20361.
Location
Kab. deli serdang,
Sumatera utara
INDONESIA
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Published by CV. IRA PUBLISHING
ISSN : -     EISSN : 29624290     DOI : https://doi.org/10.56862/irajtma
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) fokus pada artikel ilmiah hasil penelitian dan review dalam bidang teknik mesin dan aplikasinya yang antara lain meliputi: 1. Konversi energi 2. Mekanika 3. Material 4. Manufaktur 5. Lain-lain yang relevan
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 221 Documents
 19   20   21   22   23 
Dampak Rasio Pencampuran Bahan Bakar Diesel Terhadap Opasitas Asap Knalpot Mitsubishi L300 Tahun 2013 Wandani, Markus; Suprapto, Suprapto; Iskandar, Henry; Basuki, Nur; Jubaidah, Jubaidah
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.393

Abstract

High exhaust gas opacity in conventional Diesel vehicles, such as the 2013 Mitsubishi L300 with its conventional injection system, remains a significant environmental challenge. This study aims to analyze the impact of blending three Diesel fuel types—Biosolar, Dexlite, and Pertamina Dex—on exhaust opacity levels. Conducted at the Motor Vehicle Testing Unit in Medan, the research employed an experimental method using a Smoke Opacity Meter to measure smoke opacity at various fuel mixture ratios. Data were subsequently analyzed using ANOVA to identify significant differences between treatments. The results demonstrate that fuel blending significantly influences opacity values. Notably, the combination of Pertamina Dex and Dexlite yielded the lowest opacity levels, achieving an average reduction of over 30% compared to pure Biosolar. This improvement is attributed to higher cetane numbers and lower sulfur content, which facilitate more complete combustion. The study concludes that fuel blending is a practical strategy for mitigating emissions in conventional Diesel engines, supporting the development of eco-friendly fuels and sustainable transportation policies in Indonesia.
Analisis Kinerja Kincir Air Overshot dengan Penambahan Lubang pada Sudu Susanto, Adam; Buku, Atus; Siahaya, Yusuf
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.396

Abstract

This study aims to analyze the performance of an overshot water wheel with holes added to the blades, focusing on mechanical power, torque, and efficiency. The experiment was conducted using a laboratory-scale water wheel prototype with a fixed number of eight blades. The experimental variations included the number of holes in each blade (12, 16, and 20) and hole diameters (0.07 m, 0.09 m, and 0.11m), with a blade without holes used as a reference condition. The tests were carried out under relatively constant water flow conditions, with shaft rotational speed measured using a tachometer and torque obtained via a braking method. The results indicate that adding holes to the blades significantly improves the performance of the overshot water wheel. The optimal configuration was achieved with 20 holes and a hole diameter of 0.11 m, producing a maximum power of approximately 21 W, the highest torque, and a maximum efficiency of 7.9%. This study demonstrates that optimizing blade design by adding holes is an effective approach to enhancing the performance of overshot water wheels in small-scale microhydropower applications.  
Mekanisme Kendali Hibrida Berbasis Internet of Things untuk Mitigasi Kekeruhan pada Kolam Lele (Clarias gariepinus) secara Intensif Eka Permana, Aldyan; Malik, Muchamad; Jannah, Wardatul
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.397

Abstract

Intensification of catfish farming at high stocking density is often constrained by drastic water-quality degradation, including increased turbidity, which can trigger stress and mass mortality in commodities. This study aims to design and build an Internet of Things-based automatic catfish pond water turbidity control system to maintain water parameter stability according to quality standards in real-time. The research method applied is Research and Development, which includes microcontroller-based hardware design, optical turbidity sensor integration, and web-based monitoring interface development. The system uses an on-off control algorithm with a hysteresis technique to intelligently regulate the circulation pump's activation at a danger threshold of 50 Nephelometric Turbidity Units and a safe limit of 25 Nephelometric Turbidity Units. The main findings indicate that the system has a very fast dynamic response, with a sensor delay of less than 2 seconds. In maximum disturbance load testing, the device successfully restored water clarity in an average time of 165 seconds without actuator oscillation. This study concludes that integrating automatic control technology and remote monitoring effectively improves water quality management efficiency and mitigates the risk of harvest failure for farmers.
Investigasi Experimental Jumlah Sudu Dan Kecepatan Angin Terhadap Performa Turbin Savonius Tipe S Sugiono, Didik; Mahardika, Shultoni; Lostari, Aini; Riani, Novi Indah; Kulsum, Umi; Pamungkas, Baharuddin Putra
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.399

Abstract

Wind energy is a potential renewable energy source in Indonesia, but the relatively low wind speed requires efficient turbine technology. The Savonius turbine has become an alternative choice for generating electrical energy. This research aims to determine the performance of the Savonius type-S turbine with blade numbers of 3, 5, and 7 at different wind speeds. The method used was an experiment conducted in a laboratory-scale wind tunnel simulator, with testing conducted across three blade configurations at wind speeds of 6, 7, and 8 m/s. The research results show that the 3-blade turbine achieves optimal torque at all wind speeds, with a maximum of 0.24 Nm at 8 m/s. The maximum wind power is obtained with the 7-blade turbine, reaching 167 watts at 8 m/s. The optimal turbine power also occurs with the 3-blade configuration, with the highest value being 10.30 watts at 8 m/s. The highest turbine efficiency is achieved by the 7-blade turbine, which is 31.85% at 8 m/s. Based on these results, it is concluded that the number of blades affects the performance characteristics of the Savonius type-S turbine. The 3-blade configuration produces the best torque and turbine power, while the 7-blade configuration excels in wind power and efficiency.
Analisis Pengaruh Parameter Welding SMAW Penggabungan Perbedaan Material SA-36 dan SA-240 Gr. 304 pada Pengelasan Fillet Abdillah, Nonov; Aulia Nanda, Rizki; Amir, Amir; Khoirudin, Khoirudin
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.400

Abstract

In the manufacturing and construction industries, welding is the most common method of joining metals. This study aims to optimize SMAW parameters (welding current and travel speed) for joining dissimilar materials—SA-36 and SA-240 Gr.304—in fillet welds. Steel and stainless steel plates were welded using the SMAW process with DCEP polarity. The joints were made using a 90° fillet weld. Welding currents of 100 A and 110 A were used, with E-309 SFA-5.4 welding wire of 3.2 mm diameter. Macroscopic testing was performed on the cross-section of the specimens. Hardness testing was conducted using a Vickers hardness tester on the base metal, Heat Affected Zone (HAZ), and the weld zone. Specimen N4 exhibited the highest penetration at 110 A and a travel speed of 2 mm/s. Specimen N1 had the smallest HAZ width at 100 A and a travel speed of 2.4 mm/s. The visual parameters of specimen N2 were generally optimal as they minimized welding defects. It was concluded that specimen N2 was the most optimal for macro and hardness tests, with a 110 A setting and a high travel speed.
Analisis Unsur Abu Cangkang Kelapa Sawit Hasil Pirolisis Menggunakan X-Ray Fluorescence (XRF) Pangaribuan, Natalia; Mahyunis, Mahyunis
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.404

Abstract

The palm oil industry generates substantial amounts of solid waste in the form of palm kernel shells, which are not optimally utilized. This study aims to analyze the effects of pyrolysis temperature and time on the elemental composition of Tenera variety oil palm shell ash using X-ray fluorescence (XRF) analysis. The study used a two-factor randomized block design with temperature (400°C, 450°C, 500°C) and time (4, 5, 6 hours) as factors. The results showed that increasing temperature and time decreased the solids yield from 76% to 54% and increased the ash content. The highest silica content was obtained at 500°C, 43.35%. This study confirms the potential of oil palm shell ash as an alternative silica source for construction material applications.
Peningkatan Kinerja Panel Surya 10 Wp Menggunakan Solar Tracker Berbasis ESP32 Nugraha, Noviyanti; Hartawan, Liman; Marsono, Marsono; Mochamad Rachman, Randi; Adi, Seril
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.410

Abstract

Solar panels convert solar radiation into electrical energy. However, solar panels installed statically at a fixed angle have limitations in optimally capturing sunlight intensity due to the sun’s changing position throughout the day. The objective of this study is to develop a design and prototype for a solar power generation system. The PV modules used, both for solar tracking and non-tracking systems, each have a capacity of 10 Wp. The solar tracking system design is based on an ESP32 microcontroller, which uses a light-dependent resistor (LDR) sensor to detect sunlight intensity from different directions. Test data readings via IoT can be viewed on a smartphone or PC using the Blynk app. The solar power plant with a tracking system has been successfully designed, built, and tested to compare its power output with that of the non-tracking system. The average power generated by the tracking system was 6.1 watts, while the maximum power generated by the non-tracking system was 5.7 watts. The percentage difference in power between the tracking and non-tracking systems was approximately 5.7%.
Analisis Eksperimental dan Statistik Pengaruh Tekanan Udara dan Massa Benda Kerja terhadap Kecepatan Silinder Pneumatik pada Sistem Produksi Modular Tira, Hendry Sakke; Mulyadi, Mulyadi; Yudhyadi, I Gusti Ngurah Ketut
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.414

Abstract

Industrial automation systems widely employ pneumatic actuators; however, most existing studies focus on control strategies or isolated actuator components, with limited experimental validation in integrated automation platforms and insufficient evaluation of fundamental parameters such as supply pressure and load mass. This gap restricts a comprehensive understanding of actuator performance under realistic conditions. This study aims to experimentally and statistically evaluate the effects of air pressure and workpiece mass on pneumatic actuator performance in a Modular Production System (MPS) distributing station. A full factorial design (3 × 3) was used, with three levels of air pressure (3, 5, and 7 bar), three levels of workpiece mass (106, 112, and 118 g), and three repetitions per condition (27 runs). Cylinder speed was determined from the measured airflow rate, and statistical analysis was performed using one-way ANOVA. The results show that air pressure has a significant effect on cylinder speed (p < 0.05), with a 165% increase from 3 bar to 7 bar. In contrast, workpiece mass variation does not significantly affect cylinder speed (p > 0.05). These findings indicate that actuator performance in modular pneumatic systems is primarily governed by pressure-induced airflow. The study provides experimentally validated insights for improving system performance through effective pressure regulation.
Analisa Beban Pada Rangka dan Poros Penggerak Mesin Pencuci Sampah Plastik Bekas dengan Software Solidworks 2016 Hartono, Fuja Fuji; Suherman, Suherman
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.415

Abstract

The rising consumption of plastic poses significant environmental challenges due to its non-biodegradable nature. In the recycling process, the washing stage is critical for removing contaminants. This study aims to design and analyze a plastic waste-washing machine using SolidWorks 2016 Premium. The research methodology encompasses component design, mechanical parameter calculations, and static analysis simulations for the frame structure and stirrer shaft. The results indicate that the machine is powered by a 2 HP electric motor at 1400 rpm, with a pulley-and-V-belt transmission system. With dimensions of 1080 mm × 578 mm × 1000 mm, the machine achieves a washing capacity of 6 kg/hour. Simulation results demonstrate that the frame can withstand loads up to 3,810 N, which is significantly greater than the operational load of 560 N. Furthermore, the maximum stress on the stirrer shaft remains below the material's allowable limit, thereby satisfying structural safety criteria. These findings confirm that a simulation-based design approach can yield a structurally sound, operationally efficient washing machine, potentially enhancing the economic value of recycled plastics for small- to medium-scale recycling industries.
Karakteristik Pembakaran Briket yang Terbuat dari Limbah Sabut Kelapa dengan Perekat Limbah Nanas Pada Berbagai Tekanan Pemadatan Anggono, Willyanto; Hernando, Ivan Christian; Yuke, Stevanus
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.419

Abstract

The use of biomass waste as an alternative energy source is an effective way to reduce dependence on fossil fuels and address environmental issues. This study analyzes the combustion characteristics of briquettes made from coconut coir waste using pineapple waste as a binder. The research methodology includes raw material drying, mixing with a 5% binder concentration, and briquette molding under compaction pressures of 1 MPa and 2 MPa. The parameters tested include calorific value, burning rate, ignition time, and flame temperature. The results indicate that these briquettes achieved a peak calorific value of 4606 kcal/kg, surpassing that of bintaro leaf waste briquettes (4164 kcal/kg). The application of 2 MPa pressure yielded the best performance, characterized by a longer combustion duration (1295 seconds) and temperatures reaching 600°C, though it required a longer ignition time than the 1 MPa variant. The denser structure resulting from increased compaction pressure was proven to enhance combustion efficiency and stability. The primary contribution of this research lies in the use of pineapple waste as an innovative organic binder, which has been proven to significantly increase the calorific value and combustion duration of biomass briquettes compared to conventional binders.

Page 21 of 23 | Total Record : 221

 19   20   21   22   23 

Filter by Year

2022 2026


Reset
Filter By Issues
All Issue Vol 5 No 1 (2026): April Vol 4 No 3 (2025): Desember Vol 4 No 2 (2025): Agustus Vol 4 No 1 (2025): April Vol 3 No 3 (2024): Desember Vol 3 No 2 (2024): Agustus Vol 3 No 1 (2024): April Vol 2 No 3 (2023): Desember Vol 2 No 2 (2023): Agustus Vol 2 No 1 (2023): April Vol 1 No 3 (2022): Desember Vol 1 No 2 (2022): Agustus Vol 1 No 1 (2022): April More Issue