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Basic study of combustion characteristics of a dual fuel gas diesel engine by using a multi-dimensional model combined with detailed chemical kinetics
Technical Paper
2001-08-0380
Sector:
Event:
JSAE Autumn Conference
Language:
Japanese
Abstract
Numerical study was carried out to investigate combustion characteristics of a dual fuel gas diesel engine by using a multi-dimensional model combined with detailed chemical kinetics including 43 chemical species and 173 elementary reactions. In calculations, the effect of initial temperature, EGR ratios on ignition and combustion were examined. The results indicated EGR combined with intake preheating can favorably reduce NOx and THC emissions simultaneously. This can be explained by the fact that combustion mechanism is changed from flame propagation to HCCI like combustion.