TY - JOUR TI - Comparison of different chemical kinetic mechanisms of methane combustion in an internal combustion engine configuration AU - Ennetta Ridha AU - Hamdi Mohamed AU - Said Rachid JN - Thermal Science PY - 2008 VL - 12 IS - 1 SP - 43 EP - 51 PT - Article AB - Three chemical kinetic mechanisms of methane combustion were tested and compared using the internal combustion engine model of Chemkin 4.02 [1]: one-step global reaction mechanism, four-step mechanism, and the standard detailed scheme GRIMECH 3.0. This study shows good concordances, especially between the four-step and the detailed mechanisms in the prediction of temperature and main species profiles. But reduced schemes were incapables to predict pollutant emissions in an internal combustion engine. The four-step mechanism can only predict CO emissions but without good agreement.