Calculating the Thermodynamic Properties of Burnt Gas and Vapor Fuel for User-Defined Fuels

MTZ, 2007, Vol. 68, 6 p. For real working-process simulations it is essential to know the caloric properties of the working fluid, such as the specific enthalpy and the real gas constant. When using standard-fuels there are established models which describe the caloric variables as functions of temperature, air/fuel-ratio and pressure. In each case, these models were developed for a certain fuel composition and their application to alternative fuels is limited or not valid at all. Thus, an approach is discussed, which is valid for any user-defined fuel.