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Automotive Experiences
Published by Universitas Muhammadiyah Magelang
ISSN : 26156202     EISSN : 26156636     DOI : 10.31603/ae
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mechanical Engineering
Automotive experiences invite researchers to contribute ideas on the main scope of Emerging automotive technology and environmental issues; Efficiency (fuel, thermal and mechanical); Vehicle safety and driving comfort; Automotive industry and supporting materials; Vehicle maintenance and technical skills; and Transportation policies, systems, and road users behavior.
Arjuna Subject : Teknik (semua kategori) - Teknik Otomotif
Articles 233 Documents
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Malaysian Public’s Perception Toward Event Data Recorder (EDR) in Vehicles Kamaru Zaman, Fadhlan Hafizhelmi Kamaru; Rozaimi, Ismail Danish; Che Abdullah, Syahrul Afzal; Mazalan, Lucyantie; Abidin, Husna Zainol; Ab. Ghani, Amir Radzi; Ahmad, Yahaya
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.11706

Abstract

The Event Data Recorder (EDR) is an important device in a vehicle that can be used to analyze vehicle accidents. EDRs record and store crucial sensor data before, during, and after accidents, which can be used in reconstructing accident events. EDR has been regulated in the US and UK; however, its implementation in the ASEAN region, especially in Malaysia, is relatively new. In this study, a survey is conducted to investigate the perception of Malaysians toward EDR. There are three focuses of this survey: (1) the public's awareness of EDR's existence; (2) their perception of the benefits of EDR; and (3) their privacy concerns with the use of EDR in vehicles. The survey revealed that a majority (75.4%) of respondents were unaware of the existence of EDR, but 72.3% acknowledged that EDR could help identify accident causes, and 59.5% believed it could promote safer driving. Moreover, over 66% of respondents agreed that EDR could enhance vehicle and road safety. Besides, 40.3% expressed concern about potential privacy breaches and misuse of EDR data. Despite that, nearly 80% of respondents were in favor of installing EDR in their vehicles and allowing the data to be used in court. Additionally, 70% indicated that EDR would become a criterion for vehicle selection, and they would support mandatory EDR regulations.
Potential of Grocery Bags Plastic Waste as a Fuel Substitute for Fossil-Based Fuels: A Characterization Study on the Non-Catalytic Low-Temperature Pyrolysis Process Daryanto, Eka; Ampera, Dina; Matondang, Zulkifl; Simanjuntak, Janter Pangaduan; Tambunan, Bisrul Hapis; Idroas, Mohamad Yusof; Zulkifli, Nurin Wahidah Binti Mohd; Zainon, Mohamad Zamri; Riduwan, Riduwan
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12099

Abstract

Currently, pyrolysis is the primary choice for addressing the significant problems caused by plastic waste. Temperature and catalysts are the main parameters in pyrolysis. However, using catalysts can become a serious problem when scaling up production capacity, as the process can become more complex and expensive due to the high cost of catalysts. Without a catalyst, the required pyrolysis temperature must be sufficiently high to achieve high-quality pyrolytic fuel oil. In this work, plastic grocery bag is pyrolyzed followed by distillation to produce a liquid similar to conventional fuel, called distillate plastic fuel. Non-catalyst and low-temperature pyrolysis was performed at a single temperature of 350 °C, followed by distillation at temperatures of 250 °C and 350 °C to determine the effect of distillation temperature on the chemical properties of the obtained distilled fuel. Elemental and composition analyses were conducted using the GCMS method. Results indicated that the chemical properties and composition of distilled plastic fuel are similar to diesel fuel with a heating value of approximately 43.362 to 44.364 MJ/kg.
Prediction of Performance and Emission of Gasoline Engine Fueled with a Gasoline-Ethanol-Methanol Mixture Using One Dimensional Engine Modelling Based on Engine Test Results Nugroho, Rudi Cahyo; Teguh Soewono, Respatya; Kurniawan, Ade; Ma'ruf, Muhammad; Sakti, Mohammad Amanta Kumala; Mukti, Suherman; Fuadi, Abid Paripurna; Nugroho, Bagus Anang
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12141

Abstract

The depletion of petroleum reserves as the basic raw material for gasoline production has driven studies into alternative fuels. One of the alternative fuels is alcohol, both ethanol and methanol. Due to their liquid form and physical-chemical properties similar to gasoline, small modifications to the engine are required. This paper will explain the effect of using a mixture of gasoline (in this case, RON 98 gasoline with methanol or methanol on engine performance and emissions. The fuel mixtures are as follows: G100, E10, E20, E30, M10, M20, M30. AVL Boost simulation software was used as a tool for 1-dimensional engine modelling, where the modeling is based on engine testing with G100 fuel. The results show that with increasing ethanol-methanol composition, torque and power decrease, and SFC increases. On the emission side, CO, CO2, and HC were decreased and NOx increased.
Crashworthiness Performance Study of 3D-Printed Multi-Cell Tubes Hybridized with Aluminum Under Axial Quasi-Static Testing Ardiansyah, Riki; Indriani, Fitri Karina; Hidayat, Dony; Tjahjono, Arif; Nurrohmad, Abian; Marta, Aryandi
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12247

Abstract

This study investigates the crashworthiness performance of 3D-printed hybrid tubes, fabricated using PLA and PACF filaments with varying shell thicknesses (1, 1.5, and 2 mm). The hybrid tubes, composed of a shell, aluminum, and multi-cell structure, were subjected to axial quasi-static testing. Results indicate that both shell thickness and filament type significantly influence crashworthiness. PLA specimens with a shell thickness of 2 mm absorbed 504 J of energy, whereas PACF specimens with the same thickness absorbed only 342.9 J. The deformation mode analysis revealed mixed deformation patterns, including diamond, fracture, and fragmented modes. The study also evaluated specific energy absorption (SEA) and crushing force efficiency (CFE). The PLA specimen with a 2 mm shell thickness exhibited the highest SEA value of 18.61 J/g among all specimens. In contrast, the PACF specimen with the same shell thickness demonstrated the highest CFE value of 0.82 among the tested specimens. Overall, this research contributes insights into the design optimization of 3D-printed hybrid tubes for enhanced crashworthiness.
Reducing Exhaust Emissions from Palm Oil Biodiesel Diesel Engines by Adding Hydrogen Gas Winangun, Kuntang; Winardi, Yoyok; Puspitasari, Indah; Akhmad, Nanang Suffiadi; Ardika, Rizki Dwi; Ozer, Salih
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12404

Abstract

The application of hydrogen enrichment of palm oil-based biodiesel in a compression ignition engine was examined in this work. Synthesized from crude palm oil (CPO), biodiesel was first fed into a single-cylinder diesel engine. The intake manifold received hydrogen gas at flows of 2.5 L/min, 5 L/min, 7.5 L/min, and 10 L/min. Operating at a constant speed of 2,000 rpm, the single-cylinder, direct-injection diesel engine used The aim of this work is to assess the performance and emissions of a diesel engine utilizing hydrogen gas and CPO biodiesel fuels. This work examined engine performance and exhaust emissions using smoke emissions, exhaust temperature, power, thermal efficiency, and fuel economy. Addition of hydrogen improved emissions and performance. Optimal engine performance was achieved by adding 2.5 L/min of hydrogen, which resulted in a 20.12% increase in brake thermal efficiency (BTE) and a 27.57% reduction in fuel consumption compared to biodiesel. The addition of hydrogen gas has a positive impact on exhaust emissions (HC, CO2, and smoke opacity), but has a negative impact on NO emissions. At elevated loads of 2.5 lpm hydrogen flow, emissions measured were 40.00 ppm, 0.04%, 4.20%, and 44.20%, respectively, alongside a 45.72% increase in NO emissions. Including hydrogen gas improves the diesel engines running on biodiesel's performance and exhaust pollutants.
Exploration of Engine Parameters for Emission Reduction in Gasoline-Ethanol Fueled Engines Purwanto, Wawan; Maksum, Hasan; Arif, Ahmad; Rochman, Muhammad Latifur; Sujito, Sujito; Padrigalan, Kathleen Ebora
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12467

Abstract

The main objective of this study is to develop spark ignition engine parameters that allow complete combustion while reducing dependence on fossil fuels. To achieve this goal, optimization of compression ratio, gasoline-ethanol mixture, ignition timing, and spark plug type was used. In addition, this study used water injection that continuously injects water before the intake manifold. In this study, the Taguchi method with the L9 orthogonal array was applied. According to the experimental verification results, the best combination to reduce exhaust emission levels is to utilize gasoline-ethanol (E70), a compression ratio (CR) of 15.6:1, an ignition degree of +4°, and a platinum spark plug. Meanwhile, the presence of water injection at 1.45 ml/s helps reduce vehicle exhaust pollutants.
Addressing Fire Safety, Ground Impact Resistance, and Thermal Management in Composite EV Battery Enclosures: A Review Kaleg, Sunarto; Sumarsono, Danardono Agus; Whulanza, Yudan; Budiman, Alexander Christantho
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12540

Abstract

Lithium-ion batteries are fundamental to modern electric vehicles, offering high energy density, long cycle life, and low self-discharge rates. However, thermal runaway—a critical safety issue involving uncontrolled temperature increases—can lead to fire or explosion. Ensuring flame retardancy is crucial in accidents where battery packs are exposed to external fires. Additionally, battery packs are susceptible to mechanical stresses and potential damage from ground impacts like debris or uneven road surfaces. Effective thermal management significantly impacts capacity and longevity. This review emphasizes the importance of researching flame retardancy, ground impact resistance, and thermal management, especially in composite battery enclosures. Composites serve as a lightweight alternative to metals and help overcome one of the main constraints of EVs, which is weight. Ground impact refers to the physical force battery packs endure during collisions, hitting potholes, debris, or accidents. Therefore, understanding the effects of ground impact on battery enclosures is crucial for design considerations. Effective thermal management is also essential, as it directly affects the performance and safety of Lithium-ion battery packs in EVs.
Development of an Endurance Test Procedure for Vehicle Control Arm through Vehicle Dynamic Testing and Load Transfer Analysis Anuar, Nuurshafiqah; Sulaiman, Syabillah; Azizul, Muhamad Asri; Zainal Abidin, Shaiful Fadzil; Mohamed, Norirda; Mahmudin, Rahmah; Ismail, Norhasikin
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12561

Abstract

This research studies the forces applied to various vehicle control arms through different static and dynamic conditions during acceleration and braking condition. This study is targeting the important role that control arms play in ensuring stability and dynamics of vehicles, particularly when electric powertrains are added to chassis platforms created for conventional internal combustion engine (ICE). The study was designed with three phases: Fundamental of control arm dynamics (Phase 1), math formulations into theoretical models (Phase 2) and then experimental validation using the real rail component measurements (Phase 3). Tests were carried out on a straight track at a speed of 15 km/h and 30 km/h targeting the rear axle in an accelerating and the front axle in a braking condition. Results indicated that at 15 km/h, the acceleration of the rear axle was between 0.63 g and 0.49 g whereas at 30 km/h it was between 0.68 g and 0.70 g. During braking at 15 km/h, the front axle's acceleration ranged from a minimum of 0.62 g to a maximum of 0.70 g. At 30 km/h, the acceleration ranged from a minimum of 0.73 g to a maximum of 0.81 g. This suggests that there is a marked disparity in the dynamic action or response of sprung mass and unsprung mass at the different loading conditions. It emphasizes the need for additional support in the control arms and better control over the forces when the electric powertrains will be introduced. All of these have laid a basis for further research aimed at improving the designs of the vehicle structures in advance for the emerging powertrain technologies.
Thermal Performance Enhancement of Serpentine Cooling Design Using Branch Modification for Lithium-Ion Batteries Abrari, Arya Rafi; Ariwibowo, Teguh Hady; Pramadihanto, Dadet; Arini, Nu Rhahida; Binugroho, Eko Henfri; Miyara, Akio
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12709

Abstract

Lithium iron phosphate (LiFePO4) batteries offer advantages such as low cost, safety, environmental compatibility, and stability over repeated cycles. However, when subjected to high currents, this battery generates thermal issues, particularly when arranged in packs. This study aims to maintain the LiFePO4 80Ah battery within an optimal temperature range (20 °C – 40 °C) while minimizing pumping power. The proposed research introduces a serpentine channel with additional branches. The design variations include a gradient in branch spacing and changes in channel width. Each design is evaluated using dimensionless parameters representing maximum temperature, temperature uniformity, pumping power, and cooling efficiency coefficient. The best design from each variation is then compared with the conventional serpentine (CS) channel design, which is well-known for its superior thermal performance. The gradient variation reduces ????????????????∗ and ???????? by 0.07 and by 0.42, respectively, compared to the non-gradient channel design, at a Re 400 and a C-rate 3 C. The design with the largest channel width reduces ????????????????∗ by 0.57 or 11.32 °C compared to the design with the smallest channel width. At a Re 1000 and C-rate 3 C, the reduction in ????????????????∗ for the proposed channel design compared to the CS design is 0.017. In terms of the friction factor (????), the proposed design is 0.0149 lower than the CS design. The results indicate that the thermal performance of the proposed channel design is better than that of the CS design, with reduced pumping power.
Catalytic Pyrolysis of Plastic Waste using Red Mud and Limestone: Pyrolytic Oil Production and Ignition characteristics Marlina, Ena; Alhikami, Akhmad Faruq; Mardiyani, Siti Asmaniyah; Trismawati, Trismawati; Yazirin, Cepi
Automotive Experiences Vol 7 No 3 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.12830

Abstract

This study investigated the catalytic pyrolysis of polypropylene (PP) and low-density polyethylene (LDPE) using 10 wt.% red mud and 10 wt.% limestone catalysts in a batch reactor. The process was conducted at an operating temperature of 350°C with retention times of 30, 60, and 90 minutes. The effects of adding red mud and limestone catalysts on the yields of liquid, solid, and gas pyrolysis products were analyzed. The pyrolytic oil was further evaluated using droplet evaporation measurements, equipped with a K-type thermocouple and a CCD camera to monitor droplet evolution within an atmospheric chamber. The addition of catalysts enhanced the liquid product yield while reducing the solid yield. The catalytic pyrolysis successfully facilitated the isomerization of plastic polymers, breaking the carbon chains of PP with 10 wt.% red mud. Olefin content increased by up to 7.3% for both 10 wt.% red mud and 10 wt.% limestone. Furthermore, the evaporation rate constant of the catalytic pyrolysis oils improved by up to 8.3%. This study aims to provide new insights into utilizing local waste materials to enhance the quality of pyrolytic plastic products.

Page 19 of 24 | Total Record : 233

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