Rico Aditia Prahmana, Prihadi Setyo Darmanto, Firman Bagja Juangsa, Iman Kartolaksono Reksowardojo, Tirto Prakoso, Jooned Hendarsakti, Muhamad Allan Serunting, Zido Yuwazama, Azaria Haykal Ahmad
Fuel additives are recognized for their potential to make diesel engines cleaner and more efficient. However, the use of Pure Palm Oil (PPaO) as a fuel faces challenges due to its inherent combustion inefficiencies. This study explores how Acetylene Black (AB), as an additive, affects the combustion performance and spray characteristics of a diesel engine. Observations of spray phenomena were conducted using a High-Speed Camera Phantom C110. The addition of AB to PPaO resulted in an increase in engine power and torque by 11.43 % at a 60 % load, averaging a 2.97 % improvement over diesel fuel (DF). PPaO demonstrated the most significant improvement in Specific Fuel Consumption (SFC) by 17.2 % at a 40 % load, averaging an 8.2 % increase. For PPaO with AB (PPaOAB), the greatest enhancement in SFC occurred at a 10 % load, showing a 9.2 % improvement over DF, with an average increase of 2.1 %. The study also found that thermal efficiency was optimally enhanced with PPaOAB at a 20 % load, achieving a remarkable 17.7 % improvement compared to DF. Notably, the inclusion of PPaOAB significantly reduced the thickness of carbon deposits on the pistons and cylinder head by 51.8 % and 3.9 %, respectively, and improved spray angle and penetration compared to PPaO. These findings suggest that AB could be a promising additive for PPaO, sparking further research interest in the application of AB in other fuels. © 2024
Doctoral Program of Mechanical Engineering, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia; Thermal Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia; Study Program of Mechanical Engineering, Department of Production and Industrial Technology, Institut Teknologi Sumatera, South Lampung, 3536, Indonesia; Departement of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, Bandung, 40132, Indonesia; Study Program of Mechanical Engineering, Faculty of Industrial Technology, Universitas Pertamina, Jakarta, 12220, Indonesia; Study Program of Chemistry, Faculty of Science, Institut Teknologi Sumatera, Lampung Selatan, Indonesia; Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan; Research Center for New and Renewable Energy, Institut Teknologi Bandung, Bandung, 40132, Indonesia