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Universitas PGRI Semarang
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Pemodelan dan Simulasi Perambatan Panas dan Laju Aliran Udara Pada Mesin Penetas Telur Statis Menggunakan Computational Fluid Dynamics Software Agus Mukhtar; Rifki Hermana; Oki Prio; Hisyam Ma’mun; Aan Burhanudin
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 2 (2023): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i2.55

Abstract

Egg incubators are devices designed to create optimal conditions for eggs to hatch into chicks. Several important factors that must be considered in the egg incubator include temperature, humidity and air flow rate in the egg incubator chamber. Simulation of heat propagation and airflow rate in the hatchery was carried out using CFD software. The simulation results of heat propagation with a heating source above the egg rack obtained a maximum temperature of 312oK or the equivalent of 38.85o C which is right below the heater while the lowest temperature is 311°K or the equivalent of 37.85°C which is in the corner of the hatchery. The simulation results of the air flow rate with an air flow velocity of 1m/s obtained that the egg incubator with a heating source above the egg rack has an air flow rate in the hatchery space that is evenly distributed throughout the room so that the air can reach all the eggs in the hatchery room with a level hatching success of 80.5%.
Pementasan Busana Tradisional dan Tari Denok Sebagai Strategi Diplomasi Budaya Indonesia di Cabanatuan, Filipina Muhammad Budi Haryono; Bambang Hadi Kurnayo; Lintang Enggartiasto; Anita Viana; Danu Setiyawan; Ghazy Tara Tsaqif; Anas Asih Werdiyarti; Jason Edmond Wijayanto; Aan Burhanudin; Muchammad Malik; Rifki Hermana; Agus Mukhtar; Rizky Muliani Dwi Ujianti
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 4 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v4i1.379

Abstract

Culture is the primary identity of a nation, to be preserved and passed down through generations. Cultural preservation of local Indonesian heritage, such as traditional costumes and dances, faces significant challenges in the era of globalization. With its cultural richness, Indonesia utilizes cultural diplomacy as a form of soft power to introduce and preserve its cultural heritage on the international stage, including in Cabanatuan City, Philippines. This community service activity aims to socialize various traditional Indonesian costumes and the Tari Denok dance to the residents of Cabanatuan City. The event was held at Nueva Ecija University of Science and Technology in the Philippines. The method used was socialization through performances of traditional attire and Tari Denok, attended by more than 500 participants. The performances of traditional costumes and Tari Denok were divided into two days: August 22, 2025, and September 11, 2025. The results of this activity demonstrate strong enthusiasm among residents of Cabanatuan City for Indonesian culture. The results of this activity increased participants' knowledge and understanding of various traditional Indonesian clothing and Tari Denok.
Rancang Bangun Laser Grafir Portabel Berdaya Rendah Pada Media Kayu Hisyam Ma’mun; Gostsa Khusnun Naufal; Agus Mukhtar
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.v3i2.122

Abstract

Wood can be increased in value by adding patterns using light from a laser. The types of laser sources which are currently divided into 4 types include: Semiconductor lasers, Solid-state lasers, Fiber lasers, Gas lasers. Each laser generation source has differences in the way the laser light is generated, the laser wavelength produced and the supporting components needed to operate the laser system. In this research, the type of laser source will be selected according to the criteria determined by the researcher. The selection was carried out using the decision matrix method, with the highest number of values obtained from the Semiconductor lasers type laser source. Followed by testing the laser components into the available wood media. The results obtained by the laser system are in accordance with the criteria set by the researchers
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 Getaran Pada Bus Trans Jateng Koridor 4 Menggunakan Sensor Akselerometer MPU6050 Dan Metode RULA Muhammad Hanafi Wisnumurti; Agus Mukhtar; Aan Burhanuddin
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.v4i2.255

Abstract

Public bus drivers are at risk of health issues due to mechanical vibrations and non-ergonomic working postures during long working hours. This study analyzed vibration levels and ergonomic risks of Trans Jateng Corridor 4 bus drivers using an experimental method with an MPU6050 accelerometer sensor at three points: brake/clutch pedal, steering wheel, and driver’s seat at various operational speeds. Ergonomic assessment was conducted using the Rapid Upper Limb Assessment (RULA) method with CATIA V5R20 software during two main work phases. Results showed the highest vibration level on the brake/clutch pedal (3.23 m/s²), still below the threshold limit of 5 m/s² for 6–8 hours of work as regulated by the Ministry of Manpower Decree No. 5/2018. The lowest vibrations were recorded on the steering wheel (0.79 m/s²) and driver’s seat (0.93 m/s²). A RULA score of 3 in both phases indicated a “low risk” category but required long-term preventive measures. Recommendations include the use of anti-vibration footwear, structured breaks every 90 minutes, and driver rotation with a maximum of 6 hours per shift to maintain optimal working conditions and prevent occupational health disorders.
Evaluasi Efektivitas ARTG sebagai Alternatif Operasi RTG Manual di Terminal Petikemas Semarang Faizal Ridho Alfianto; Agus Mukhtar; Aan Burhanuddin
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.v4i2.259

Abstract

This study evaluates the effectiveness of Automated Rubber Tyred Gantry (ARTG) as an alternative to manual RTG operations at the Semarang Container Terminal. The research focuses on productivity (boxes/hour), maintenance cost efficiency (IDR/month), and workplace safety (number of incidents). A descriptive quantitative case study was conducted from March to May 2025. Results show that ARTG improved productivity by 11.25%, reduced maintenance costs by 46.5%, and recorded zero incidents compared to four incidents with manual RTG. All differences were statistically significant (p < 0.05). These findings indicate that ARTG enhances operational efficiency and safety in port operations. Gradual implementation of ARTG is recommended, considering digital infrastructure readiness, human resource training, and policy support.
Prototipe Sistem Peringatan Dini Kualitas Minyak Rem Pada Angkutan Barang Berbasis Arduino Uno Jalu Lutfi Wijatolah; Agus Mukhtar; Aan Burhanuddin
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.v4i2.273

Abstract

This research focuses on the development of an Arduino Uno-based early warning system to monitor brake fluid quality in freight vehicles. This system uses a TDS sensor to detect water content in brake fluid in real-time, displays the results on a 2004 IIC LCD screen, and provides visual and audio warnings if the brake fluid quality is below the safe threshold. This research employs the Research and Development method, utilizing a Planning, Production, and Evaluation model, and is validated by experts in the fields of information technology, electronics, and vehicle testing. System performance is evaluated through calibration against the Habotest Brake Fluid Liquid Tester and achieves 100% accuracy on various test samples. This prototype is proven to be easy to operate, provides accurate warnings, and has high feasibility for integration into existing vehicle fleets without requiring significant modifications. This innovation is expected to encourage a culture of preventive maintenance and improve public transportation safety.
Prototipe Alat Pemantau Kualitas Udara Pada Unit Pengujian Kendaraan Bermotor Ririswari Widya Wardani; Agus Mukhtar; Aan Burhanuddin
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.v4i2.274

Abstract

This study aims to design and evaluate the performance of a prototype air quality monitoring device integrated with an exhaust fan in a vehicle testing room. The experimental method was employed to examine the relationship between variables. The increasing number of motor vehicles has an impact on air quality, particularly in emission testing areas. The device utilizes an MQ-7 sensor for gas detection and a DHT22 sensor for temperature and humidity, with data displayed in real time on an LCD screen. When the gas concentration exceeds nine ppm, the system activates an audible alarm and automatically turns on the exhaust fan to maintain air circulation. The exhaust fan expels hot air from the room while bringing in cooler outside air. Test results indicate that the device operates stably and provides accurate data, making it suitable as an air quality monitoring system in motor vehicle testing facilities.
Pemberdayaan Masyarakat Desa Mororejo, Kecamatan Kaliwungu, Kabupaten Kendal Melalui Teknologi Pengolahan Rumput Laut Agus Mukhtar; Hisyam Ma'mun; Ibnu Toto Husodo; Muhammad Faesal Febriandyono; Muhamad Safi'i
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.v4i2.501

Abstract

Mororejo Village, Kendal Regency, has abundant seaweed potential, but it yields low economic value (IDR 3,000/kg) as it is sold raw. The partner, BUMDes "Moro Berkah", also faces challenges with manual bookkeeping and limited local marketing. This Community Service (PkM) program aims to increase the economic value of seaweed, digitalise financial records, and expand the market through appropriate technology transfer. Methods included providing a seaweed milling machine (disk mill), drafting hygienic production SOPs, training in Microsoft Excel-based bookkeeping, and implementing digital marketing strategies. The results show a significant increase in the partner's capacity. The team successfully transformed raw dried seaweed into high-quality powder, boosting the selling price from IDR 3,000/kg to IDR 85,000/kg. Financial digitalisation helps BUMDes managers handle cash flow transparently and accurately. Furthermore, digital marketing training strengthens product branding and reduces dependence on middlemen by expanding online market access.
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.
Co-Authors Aan Burhanuddin Aan Burhanudin Anas Asih Werdiyarti Androva, Althesa Anita Viana Bambang Hadi Kurnayo Danu Setiyawan Faizal Ridho Alfianto Febby Fauziah Ghazy Tara Tsaqif Gostsa Khusnun Naufal Hisyam Ma’mun Ibnu Toto Husodo, Ibnu Toto Jalu Lutfi Wijatolah Jason Edmond Wijayanto Lintang Enggartiasto Muchamad Malik Muchammad Malik Muhamad Safi'i Muhammad Budi Haryono Muhammad Faesal Febriandyono Muhammad Hanafi Wisnumurti Oki Prio Rifki Hermana Ririswari Widya Wardani Rizky Muliani Dwi Ujianti Syahrul Mahfudli Rohman Wardatul Jannah