الگوسازي نحوه عملكرد موتور HCCI براي سوخت اتانول

Modeling of HCCI Engine Performance Using Ethanol Fuel

In the present research. a single -zone theoretical model based on the first law of thermodynamics has been employed to predict the performance of a HCCI engine using ethanol fuel. Combustion modeling is based on chemical kinetics of the fuel using CHEMKlN library. Equations related to fuel reaction rates. thermodynamic and transport properties as well as heat transfer from in-cylinder contents to surrounding surfaces are simultaneously solved. Effects of fuel air equivalence ratio on combustion has been evaluated and predictions for in-cylinder pressure and temperature as well as mole fractions of cylinder contents are compared with the corresponding theoretical and experimental values reported in the literature. to assess accuracy of the presented model. The results show reasonable compatibility.