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All Journal INVOTEK: Jurnal Inovasi Vokasional dan Teknologi AEEJ : Journal of Automotive Engineering and Vocational Education Al-Khidmah Jurnal Pengabdian Masyarakat
Aulina, Audha Fitrah
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Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Social Sciences Transportation

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Inovasi Pembelajaran Otomotif melalui Implementasi Sensor Cerdas di SMAN Ambulu Jember Mulyono, Novangga Adi; Aulina, Audha Fitrah; Dwianto, Sihmaulana; Ali, Reynaldi Akbar
Al-Khidmah Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): MEI-AGUSTUS
Publisher : Institute for Research and Community Service (LPPM) of the Islamic University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56013/jak.v5i2.4156

Abstract

The rapid development of Internet of Things (IoT) technology and smart sensors in the automotive industry opens up great opportunities in the world of education, especially at the high school level. This community service program aims to introduce Arduino-based sensor and microcontroller technology to students of SMAN Ambulu Jember through a workshop approach and project-based learning. The method used in this activity uses the PAR (participatory action research) method with an interactive workshop approach and project-based learning that includes an introduction to types of automotive sensors such as DHT11, HC-SR04, and LDR as well as sensor installation and programming practices. The evaluation results showed a significant increase in students' understanding of the concept of IoT and microcontrollers, as well as a high interest in studying the field. This workshop proves the effectiveness of the interactive learning model in improving students' technological literacy and readiness to face the challenges of industry 4.0.
Pengaruh Water Injection System pada Mesin 100cc Berbahan Bakar LPG Terhadap Konsumsi Bahan Bakar Spesifik dan Temperatur Mesin Ali, Reynaldi Akbar; Mulyono, Novangga Adi; Aulina, Audha Fitrah
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 5 No 2 (2024): Vol 5 No 2 (2024): AEEJ : Journal of Automotive Engineering and Vocational Educat
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v5i2.260

Abstract

The number of motorized vehicles in Indonesia is increasing. Therefore, alternative fuels are needed to meet the needs. One of them is LPG (liquified petroleum gas). However, in its application, the engine temperature becomes hotter, making it less efficient, and specific fuel consumption is not optimal. The Water Injection System is one of the additional technologies that can be used to reduce engine heat. This study will compare the results of specific fuel consumption and engine wall temperature with adding a water injection system on a 100cc engine. The data collection results on specific fuel consumption at 3000 RPM without water injection showed the highest figure at 0.0410 (kg/HP.hour), with the addition of a water injection system, it produced 0.0405 (kg/HP.hour). The average engine working temperature without a water injection system was 90.3 0C while adding a water injection system showed 87.8 0C. Jumlah kendaraan bermotor di Indonesia semakin meningkat. Untuk itu diperlukan bahan bakar alternatif untuk memenuhi kebutuhan. Salah satunya adalah LPG (liquified petroleum gas). Namun pada aplikasinya, temperatur mesin menjadi lebih panas, sehingga kurang efisien dan konsumsi bahan bakar spesifiknya tidak optimal. Water injection System adalah salah satu teknologi tambahan yang dapat digunakan untuk mengurangi panas mesin. Penelitian ini akan membandingkan hasil specific fuel consumption dan temperatur dinding mesin dengan penambahan water injectiontion system pada mesin 100cc. Hasil pengambilan data specific fuel consumption pada 3000 RPM tanpa water injection menunjukkan angka tertinggi di 0,0410 (kg/HP.jam) dan dengan penambahan water injection system menghasilkan 0,0405 (kg/HP.jam). Temperatur kerja mesin rata rata tanpa water injection system menunjukkan 90,3 0C sedangkan ketika menambahkan water injection system menunjukkan 87,8 0C.
CFD Simulation of Pipe Joints Using SimScale: Analysis of the Effect of Different Inlet Velocities on Water Fluid Flow Hasbiyati, Haning; Aulina, Audha Fitrah
invotek Vol 25 No 1 (2025): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v25i1.1263

Abstract

This study aims to analyze the effect of variations in inlet velocity on fluid flow patterns at tee-junction pipe connections using numerical simulations based on Computational Fluid Dynamics (CFD). The SimScale platform was used because it supports cloud-based processing and integration with OpenFOAM solvers. The tee connection model is designed in three dimensions, with the main and branch pipe dimensions each having a diameter of 100 mm. The merging process uses the parametric hexagonal method and local refinement in the joint area to accurately capture turbulent phenomena. Simulations were performed under incompressible and isothermal flow conditions with a standard k–ε turbulence model, using water fluid and the SIMPLE algorithm. The inlet velocity consists of 2 variations A (VI = 1 m/s, V2 = -1 m/s) and variation B (V1 = -1.5 m/s, V2 = -3 m/s). Simulation results show that increasing the inlet velocity results in a more turbulent flow, characterized by an increase in the turbulent kinematic viscosity, specific dissipation rate, and turbulent kinetic energy. Conversely, low velocities indicate higher pressure accumulation due to flow resistance. These findings indicate that inlet velocity variations significantly affect flow characteristics, requiring attention in system design to maintain long-term operational efficiency and reliability.
Co-Authors Ali, Reynaldi Akbar Dwianto, Sihmaulana Hasbiyati, Haning Mulyono, Novangga Adi