Multi-zone thermodynamic modeling of combustion and emission formation in CNG engines using detailed chemical kinetics

摘要

This study proposes an efficient and accurate methodology that combines detailed chemical kinetics with a validated multi-zone thermodynamic model to calculate the emissions of a spark-ignition, natural gas fueled engine. The relative air-fuel ratio has been changed from 0.8 to 1.53, and the nominal brake mean effective pressure has been varied from 0.2 MPa to 1.29 MPa.