عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Homogenous Charge Compression Ignition (HCCI) is a mode of combustion in IC engines in which
premixed fuel and air are ignited spontaneously. There is a belief that HCCI engines have a great potential
to improve fuel consumption and reduce NOx emissions.
In this study, a single zone, zero dimensional, thermo-kinetic model has been developed and a computer
program with MATLAB software is used to predict engine performance characteristics. This model has
been used to predict the principal parameters of controlling auto-ignition to acceptable level and this work
leads to achieving the working region with two limitations for knock and misfire. The cycle is simulated with
premixed blend of methane and DME with air. Also, NOx emissions are compared in a diesel engine working
as a conventional diesel and at HCCI mode.