In this paper a single-zone zero-dimensional thermodynamic model, coupled with chemical kinetic equations, has been developed using Visual FORTRAN programming software to predict combustion and performance characteristics of HCCI engines using DME fuel. The model is used to investigate the effects of intake temperature, fuel loading, intake pressure, and exhaust gas recirculation (EGR) on auto-ignition characteristics, optimum combustion phasing, and performance of the HCCI engines. Simultaneous effects of these variables for finding the most appropriate regime of HCCI engine operation, considering knock and misfire boundaries, are also studied.

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