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All Journal Otopro MASALIQ: Jurnal Pendidikan dan Sains
Zainuri, Ach Muhib
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Religion Automotive Engineering Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Pengaruh Penambahan Aditif 2-EHN dan Asam Oleat pada Biosolar terhadap Konsumsi Bahan Bakar Muhadi, Imam; Zainuri, Ach Muhib
MASALIQ Vol 4 No 5 (2024): SEPTEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i5.3539

Abstract

Biodiesel B30 is a blend of 70% conventional diesel fuel and 30% biodiesel, increasingly used as an environmentally friendly alternative. However, to enhance fuel performance and efficiency, the addition of additives such as 2-EHN (2-Ethylhexyl Nitrate) and oleic acid needs further study. This research aims to eval_uate the impact of these additives on diesel engine fuel consumption. The study uses an experimental method to explore the cause-and-effect relationship between independent and dependent variables with a quantitative approach. Collected data is analyzed using statistical techniques to measure and eval_uate the significance and strength of relationships between variables. Through experimental methods and statistical analysis, this research aims to provide a deeper and more scientific understanding of the phenomena being studied. The graph shows that fuel consumption increases with RPM. Oleic acid increases fuel consumption at both low and high RPMs. In contrast, 2-EHN reduces fuel consumption, especially at high RPMs. Overall, 2-EHN is more efficient than oleic acid in improving the performance of B30 biodiesel. The addition of 2-EHN to biosolar fuel reduces fuel consumption, particularly at high RPMs. B30 blends with 0.5% and 1% 2-EHN show better efficiency compared to blends without additives or with oleic acid. Conversely, adding oleic acid increases fuel consumption, especially at high RPMs, indicating lower efficiency.
ANALYSIS AND MONITORING OF FILLING TOOLS AUTOMATIC TIRE AIR CONTROL THROUGH IOT Abimanyu Mahardika Putra Kalimantono; Hartono, Moh; Rohman, Fatkhur; Zainuri, Ach Muhib
Otopro Vol 21 No 2 May 2026
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v21n2.p43-48

Abstract

Maintaining proper tire pressure is essential for ensuring vehicle safety, fuel efficiency, and tire durability. However, manual tire inflation often results in inconsistent pressure and human error. This study aims to design and evaluate an IoT-based automatic tire inflation system. The system integrates a compressor, an MPX5700AP pressure sensor, a solenoid valve, a microcontroller, and a mobile application for real-time monitoring and control. Experimental results show a strong linear relationship between pressure and inflation time, with high consistency and minimal deviation. Although the automatic system requires slightly longer inflation time, it provides better accuracy and reliability. The proposed system offers a practical solution for small workshops and self-service applications
Co-Authors Abimanyu Mahardika Putra Kalimantono Fatkhur Rohman Hartono, Moh Muhadi, Imam