Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

Alfredas Rimkus, Jonas Matijošius and Sai Manoj Rayapureddy
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Alfredas Rimkus: Department of Automobile Transport Engineering, Technical Faculty, Vilnius College of Technologies and Design, Olandų g. 16, LT-01100 Vilnius, Lithuania
Jonas Matijošius: Department of Automobile Engineering, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičiaus g. 28, LT-03224 Vilnius, Lithuania
Sai Manoj Rayapureddy: Department of Automobile Engineering, Faculty of Transport Engineering, Vilnius Gediminas Technical University, J. Basanavičiaus g. 28, LT-03224 Vilnius, Lithuania

Energies, 2020, vol. 13, issue 9, 1-17

Abstract: This article presents the results of a study of energy and ecological indicators at different engine loads ( BMEP ) adjusting the Start of Injection ( SOI ) of a Compression Ignition Engine fuelled with blends of diesel (D), rapeseed methyl ester (RME)-based biodiesel and isopropanol (P). Fuel blends mixed at D50RME45P5, D50RME40P10 and D50RME30P20 proportions were used. Alcohol-based fuels, such as isopropanol, were chosen because they can be made from different biomass-based feedstocks and used as additives with diesel fuel in diesel engines. Diesel fuel and its blend with 10% alcohol have almost the same thermal efficiency ( BTE ). In further examination of energy and ecological indicators, combustion parameters were analysed at SOI 6 CAD BTDC using AVL BOOST software ( BURN subprogram). Increasing alcohol content in fuel blends led to a reduced cetane number, which prolonged the ignition delay phase and intensified heat release in the premixed combustion phase. Higher combustion temperatures and oxygen content in the fuel blends increased NO x emissions. Lower C/H ratios and higher O 2 levels affected by RME and isopropanol reduced smoke emissions.

Keywords: compression ignition (CI) engine; biodiesel; isopropanol; combustion; energy indicators; ecological indicators (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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