Numerical analysis of the effect of thermal and fuel stratification on reducing pressure rise rate in HCCI engine by using multi-zone chemical kinetics

The purpose of this study is to evaluate the potential of thermal and fuel stratification for reducing pressure rise rate in HCCI engines. The computational modeling work is conducted using a multi-zone code with detailed chemical kinetics, including the effects of thermal and fuel stratification charge on the onset of ignition, pressure rise rate and combustion efficiency.