TY - JOUR
T1 - Combustion characteristics of a compression ignition engine fuelled with diesel-ethanol blends
AU - Li, W.
AU - Ren, Y.
AU - Wang, X. B.
AU - Miao, H.
AU - Jiang, D. M.
AU - Huang, Z. H.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/2/1
Y1 - 2008/2/1
N2 - Combustion characteristics were analysed in a compression ignition engine fuelled with diesel-ethanol blends with and without a cetane number improver. The results show that, for the same brake mean effective pressure and engine speed, the maximum cylinder pressure Pmax, the ignition delay, the premixed combustion duration, and the fraction of heat release in premixed combustion phase will increase, while the diffusive combustion duration, the fraction of diffusive combustion phase, and the total combustion duration decrease with increase in the ethanol fraction in the blends. Meanwhile, the centre of the heat release curve moves close to the top dead centre, and the maximum rate (dQb/dφ)max of heat release and the maximum rate (dp/dφ)max of pressure rise increase with increase in the ethanol fraction in the blends. The addition of a cetane number improver is beneficial to the decrease in the ignition delay, the cylinder peak pressure, the maximum rate of pressure rise, and the combustion noise when operating on diesel-ethanol blends.
AB - Combustion characteristics were analysed in a compression ignition engine fuelled with diesel-ethanol blends with and without a cetane number improver. The results show that, for the same brake mean effective pressure and engine speed, the maximum cylinder pressure Pmax, the ignition delay, the premixed combustion duration, and the fraction of heat release in premixed combustion phase will increase, while the diffusive combustion duration, the fraction of diffusive combustion phase, and the total combustion duration decrease with increase in the ethanol fraction in the blends. Meanwhile, the centre of the heat release curve moves close to the top dead centre, and the maximum rate (dQb/dφ)max of heat release and the maximum rate (dp/dφ)max of pressure rise increase with increase in the ethanol fraction in the blends. The addition of a cetane number improver is beneficial to the decrease in the ignition delay, the cylinder peak pressure, the maximum rate of pressure rise, and the combustion noise when operating on diesel-ethanol blends.
KW - Blends
KW - Combustion
KW - Diesel
KW - Diesel engine
KW - Ethanol
UR - http://www.scopus.com/inward/record.url?scp=41849086690&partnerID=8YFLogxK
U2 - 10.1243/09544070JAUTO496
DO - 10.1243/09544070JAUTO496
M3 - Article
AN - SCOPUS:41849086690
VL - 222
SP - 265
EP - 274
JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
SN - 0954-4070
IS - 2
ER -