Modeling the Performances of a Vehicle Provided with a Spark Ignition Engine Using a Double Energy Source, Gasoline and Liquefied Petroleum Gas

Abstract

The paper contains in the first part a comparative study of the consequences involved by the use of two power sources for the spark ignition engine respectively the gasoline and liquefied petroleum gas, highlighting the criteria of dynamicity, economy and pollution. In the second part, the paper presents the results of the modeling of the fuel consumption, respectively the criteria for economy, results reported and conducted using the European running cycle NMVEG for both power sources, gasoline and liquefied petroleum gas. In the third part is presented the practical case, based on a project study which involved the identification of all operating points of the engine after the European running cycle NMVEG and respectively the estimation of the polluting emissions resulted from the combustion process taking place both with gasoline and with liquefied petroleum gas for a vehicle provided with a spark ignition engine, using as the processing and simulation software AMESim “Advanced Modeling Environment for Simulation of engineering Systems”.