THERMAL SCIENCE

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Breda Kegl

,

Stanislav Pehan

INFLUENCE OF BIODIESEL ON INJECTION, FUEL SPRAY, AND ENGINE CHARACTERISTICS

ABSTRACT
This paper discusses the influence of biodiesel on the injection, spray, and engine characteristics with the aim to reduce harmful emissions. The considered engine is a bus diesel engine with injection M system. The injection, fuel spray, and engine characteristics, obtained with biodiesel, are compared to those obtained with mineral diesel under peak torque and rated conditions. The considered fuel is neat biodiesel from rapeseed oil. Its density, viscosity, surface tension, and sound velocity are determined experimentally and compared to those of mineral diesel. The experimentally obtained results are used to analyze the most important injection, fuel spray, and engine characteristics. Furthermore, the influence of biodiesel usage on lubrication is presented briefly. The results indicate that, by using biodiesel, harmful emissions (NOx, CO, HC, smoke, and PM) can be reduced to some extent by adjusting the injection pump timing properly while keeping other engine characteristics within acceptable limits. Furthermore, the results indicate better lubrication conditions when biodiesel is used.
KEYWORDS
biodiesel, diesel engine, injection characteristics, fuel spray, emission, lubrication
PAPER SUBMITTED: 2007-08-15
PAPER REVISED: 2008-03-25
PAPER ACCEPTED: 2008-04-15
DOI REFERENCE: https://doi.org/10.2298/TSCI0802171K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2008, VOLUME 12, ISSUE Issue 2, PAGES [171 - 182]
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Influence of biodiesel on injection, fuel spray, and engine characteristics

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence