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Simulasi Laju Aliran Udara pada Mesin Oven Pengering Kerupuk dengan Burner Sederhana Berbasis Computational Fluid Dynamics Syahrul Mahfudli Rohman; Agus Mukhtar; Aan Burhanudin
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 2 (2024): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i2.134

Abstract

Drying is the process of removing water or separating a relatively small amount of water from a material using heat energy. One method of drying is through oven processing, which aims to reduce the moisture content in materials using an oven. This study aims to analyze the airflow rate in an oven using Computational Fluid Dynamics (CFD) simulation and to examine the effect of temperature variations on airflow rate using CFD simulation. The research method employed is experimental, with data collection techniques including descriptive analysis, involving experiments, simulation results, and documentation. The study found that the simulated airflow rate using Ansys R2 2020 varied with different temperatures. At 70℃, the air velocity ranged from 1.108 m/s to 4.432 m/s, while at 75℃, it ranged from 1.882 m/s to 11.29 m/s. Turbulence occurred at both temperatures, and higher temperatures resulted in faster airflow rates due to reduced air resistance. At 75℃, the crackers achieved optimal dryness, with a weight reduction of 95%. High temperatures can reduce air density which can increase air flow speed due to a decrease in resistance experienced by the air.
Analisis Kekuatan Hasil Printer 3D Dengan Filamen Acrylonitrile Butadiene Styrene (ABS) Berdasarkan Variasi Suhu Nosel dan Jenis Isian Hisyam Ma'mun; Joko Supriyanto; Gostsa Khusnun Naufal; Aan Burhanudin; Rifki Hermana
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.247

Abstract

Technological advancements, including 3D printing, enable the creation of prototypes from digital designs using 3D printers. A popular method is Fused Deposition Modeling (FDM) with thermoplastic materials such as Acrylonitrile Butadiene Styrene (ABS), valued for its quality and affordability. In 3D printing, nozzle temperature and infill type influence the mechanical properties of printed objects. This study aims to determine the tensile strength of ABS with variations in nozzle temperature and infill type. Tensile test results show that a 230°C nozzle temperature produces higher yield strength for most infill types compared to 240°C. The 240°C setting tends to increase maximum tensile strength for grid and concentric infills, but not for gyroid and lines. The concentric infill type exhibited the highest elongation at both temperatures, indicating greater ductility compared to other infill types. These findings are expected to serve as a reference for optimizing printing parameters.
Pengaruh Kedalaman Alur Ban dan Tekanan Ban Terhadap Gaya Pengereman Tegar Kurniawan; Agus Muchtar; Aan Burhanudin
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.254

Abstract

This study analyzes the effect of tire tread depth and tire pressure on braking force in a Mitsubishi L300 vehicle. An experimental method was applied with variations in tread depth (>1 mm and <1 mm) and tire pressure (30 psi, 50 psi, and 60 psi). Results indicate that both variables significantly affect braking efficiency. The 50 psi–50 psi combination at >1 mm tread depth yielded the highest efficiency (86%), whereas the 30 psi–30 psi combination at <1 mm tread depth recorded the lowest (48%). A tread depth of <1 mm reduced braking efficiency by 15–20% on average. Tire pressures below or above the standard decreased braking performance by 10–15%. Maintaining balanced tire pressure at 50 psi and a minimum tread depth of 1 mm is recommended for driving safety.
Pengembangan dan Optimalisasi Mesin Incinerator untuk Meningkatkan Efektivitas Pengolahan Sampah di BUMDes Moroberkah Desa Mororejo Althesa Androva; Aan Burhanudin; Wardatul Jannah; Muchamad Malik; Agus Mukhtar; Muhammad Faesal Febriandyono; Muhamad Safi'i; Febby Fauziah; Rizky Muliani Dwi Ujianti
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 4 No 2 (2026): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v4i2.521

Abstract

The temporary closure of the final disposal site (landfill) for 1–2 days during holidays causes waste accumulation, which has become a concern among residents. BUMDes Moroberkah's waste management still relies on manual open burning, resulting in air pollution and scattered combustion residues. This community service program aimed to provide a solution by implementing appropriate technology in the form of an incinerator machine. The program was conducted in two stages: on-site machine testing, followed by unit handover and training for BUMDes management. Test results showed that the incinerator operated optimally, with a waste-reduction capacity of about 25 kg/hour. The internal air circulation system and chimney design effectively reduced exhaust emissions, while the machine contained combustion residues, helping maintain environmental cleanliness. The program also improved the BUMDes management’s understanding of standard operating procedures (SOPs) for machine operation and maintenance. This program provides an independent, comprehensive, and environmentally friendly waste management solution.