5. Engine emissions
5.1 Type of emissions
Perfect combustion of a hydrocarbon leads to the formation of carbon dioxide and water. This ideal pattern is rarely realized in an engine: exhaust gases are made up of a large number of molecules, some of which are identified pollutants, such as carbon monoxide (CO), nitrogen oxides (NO, NO 2 , N 2 O, represented as NO x ) and unburned hydrocarbons (HC). The determining parameter for the production of these pollutants is the richness of the carburetted mixture in which combustion has developed (figure 30...
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Engine emissions
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"Hydraulic, aerodynamic and thermal machines"
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