**3. Results and discussion**

To better predict the engine performance parameters of in-cylinder pressure and heat release rate (HRR), detailed chemistry is incorporated into the CFD model. To achieve this, KIVA-CHEMKIN interface is used to extract reaction rates and reaction constants for the reaction data and, heat of formation and molecular weights for the species data, that is used for input into KIVA simulations. The reduced reaction mechanism has 53 reactions and 44 species.
