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Comparative analysis of passenger car and non-road machinery specific emission in real operating conditions

The article presents a comparative analysis of harmful compounds: carbon dioxide (CO2), carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx) and particulate matter (PM) emitted from vehicles of the passenger car and non-road categories. The research object representing the first category was a vehicle equipped with a Euro 5 compliant compression ignition engine with a common rail fuel injection system. The second one was represented by an agricultural tractor with a compression ignition engine. The tests were carried out in real operating conditions in the Poznan agglomeration. In the case of the passenger car, a real drive was carried out, including passengers, on roads with different speed limits in accordance with the RDE procedure, as adopted in 2017. However, the farm tractor was tested while conducting field work. The tests were carried out using analyzers from the PEMS (Portable Emission Measurement System) group. In order to perform a comparative analysis of vehicles from two separate categories, the results obtained were presented in the form of unit emissions (g/kWh). This paper was aimed at assessing the emissivity of a non-road vehicles and relate them to results obtained from passenger cars. Moreover, the current legislation, tightening the provisions of the increasingly numerous non-road vehicles group has also been assessed.