THERMAL SCIENCE

International Scientific Journal

Zhi-qiang Zhang

,

Fu-quan Zhao

,

Jun Deng

,

Li-Guang Li

A SIMULATED STUDY ON THE PERFORMANCE OF DIESEL ENGINE WITH ETHANOL-DIESEL BLEND FUEL

ABSTRACT
This paper describes the simulated study on atomization, wall-film formation, combustion and emission forming process of ethanol-diesel blend fuels in a high speed light duty diesel engine. The result shows that increased ethanol volume percentage of the blend fuels could improve atomization and reduce wall-film formation. However, in the meanwhile, with the increased ethanol volume percentage, low heat values of blend fuels decrease, while both total heat releases and cylinder pressures drop. By adding codes into the FIRE software, the NOx and soot formation region mass fractions are outputted. The simulated results display a good correlation with the NOx and soot formation. Besides, the NOx, soot and CO emissions decrease with the increased ethanol volume percentage. The power output of engine penalize, while energy utilization of blend fuels improve and combustion noise reduce, owing to the increased ethanol volume percentage.
KEYWORDS
ethanol-diesel blend fuels, wall-film, NOx and soot formation region mass fraction, combustion, emissions
PAPER SUBMITTED: 2011-06-30
PAPER REVISED: 1970-01-01
PAPER ACCEPTED: 2012-05-29
DOI REFERENCE: https://doi.org/10.2298/TSCI110630105Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 1, PAGES [205 - 216]
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A simulated study on the performance of diesel engine with ethanol-diesel blend fuel

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