Prediction of Soot Emission from a Direct Injection Diesel Engine by Means of Three-dimensional Chemical Kinetics Calculation

Abstract

The elementary reaction scheme including a soot model for a diesel surrogate fuel by Golovitchev and the soot oxidation model for surface reaction by Nagle, et al. have been incorporated into the GTT-CHEM code constructed by the authors' group, in order to numerically predict soot emission from a direct injection diesel engine. The reaction rate constants have been optimized to reasonably reproduce the φ-T map for soot generation and the ignition delay data. As a result, the experimental results of soot and NO emissions as well as the rates of heat release under various injection conditions have been reproduced reasonably well by means of three-dimensional chemical kinetics calculation using the GTT-CHEM code.