Providing a thermodynamic model to simulate the spark ignition engine fueled with natural gas and ethanol mixture

The use of natural gas as an alternative fuel, in recent decades has been proposed. Good combustion properties and cats less than it could be the perfect choice for the next generation. Simulation models can be of great help engine designers. Simulation models to reduce the time and costs for the development of new engines as well as in identifying the technical value that need special attention in the design, are of great importance. In this study the thermodynamic model for the study of thermodynamic parameters of a spark ignition engine fuel mix methane (C2H6O) and ethanol (CH4) is provided. To simulate the engine, the governing equations for modeling the area of combustion engines can be used. This relationship has become in MATLAB code, and finally by drawing diagrams, are analyzed. The results showed that the addition of ethanol to fuel higher percentages of methane, increasing amounts of pressure inside the cylinder, work and heat output (power stage) as well. However, the energy lost through leakage and most pure methane lowest temperature of the burned area is capable.