Calculating method of heavy diesel engines emissions toxicity

The method to calculate harmful compounds of exhausts gases from Diesel engines is presented in this topic. It is believed that vehicles with internal combustion engines in European countries release about 89% of CO, 52% of NOx and 44% of volatile organic compounds of the total amount of pollutants. Therefore, the main Diesel engines pollutants are products of incomplete combustion of fuel and other fuels, i.e. particulates, carbon monoxide CO and hydrocarbons CmHn. There are also large quantities of sulphur oxide SOx compounds, i.e. combustion products of sulphur admixtures. Nitrogen oxides NOx make the main part of poisonous substances released by Diesel engines (about 60%). They are formed during the combustion of the nitrogen contained in the air. The poisonous gases amount dependences on engines regimes are presented. Finally, basic conclusions are given.