Compression ignition engine - sources of pollution

Abstract

The high reliability and efficiency of the compression ignition engine as well as its low operating costs turned this engine into the preferred propulsion system for both cars and heavy vehicles. At the same time, the harmfulness of his pollutant emissions gave him the unpleasing status of First Culprit for the many health problems of the population in the metropolis. Currently, the compression ignition engine is mainly responsible for the release of five types of pollutant emissions into the atmosphere: carbon monoxide-CO, hydrocarbons-HC, mechanical particles-PM, sulphur dioxide-SO2 and nitrogen oxides-NOx. Thus, while emissions of carbon monoxide-CO and hydrocarbon-HC are low, due to the fact that this engine usually works with lean mixtures, high emissions of nitrogen oxides-NOx and mechanical particles-PM raise serious pollution problems worldwide.