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Haidar Hanief
Universitas Islam Malang, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mechanical Engineering

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The Role of Heterogeneous Catalyst Transesterification in Single Droplet Combustion of Soybean Oil Based Biodiesel Haidar Hanief; Arya Radya Guntur Pamungkas; Mitsuhisa Ichiyanagi; Willyanto Anggono; Cepi Yazirin; Muhammad Akhlis Rizza; Ena Marlina
Automotive Experiences Vol. 8 No. 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.15027

Abstract

The consumption of petroleum fuel in Indonesia is increasing, makes the globe climate change a lot. Thus, requiring a renewable energy alternative source such as biodiesel. This study analyzed the single droplet combustion characteristics of soybean oil-based biodiesel produced via transesterification using two heterogeneous catalysts: papaya leaf (PL) and papaya leaf combined with animal bone (PLAB). For comparison, petroleum diesel fuel also tested. Results show that catalyst origin significantly influences combustion behavior. PL exhibited the longest droplet lifetime 7,135 mm/s2 and the highest peak temperature (546 °C), while PLAB showed shorter droplet lifetime 5,001 s/mm2and a lower peak temperature (467 °C), closer to petroleum diesel (4,081 s/mm2 and 254 °C), respectively). In terms of ignition delay, petroleum diesel ignited fastest (3,528 s/mm2), followed by PLAB (4,837 s/mm2) and PL (0,612 s/mm2). The combustion behavior of PLAB is correlated with its higher FAME purity (98%) and methyl linoleate content (43.69%), as reflected by the reduced droplet lifetime. This suggests that the catalyst primarily improves biodiesel quality via enhanced transesterification efficiency, which in turn affects combustion characteristics.
Co-Authors Arya Radya Guntur Pamungkas Ena Marlina Mitsuhisa Ichiyanagi Muhammad Akhlis Rizza Willyanto Anggono Yazirin, Cepi