Abstract
The paper presents the analysis of the emission level from a heavy-duty truck of the GVW of 12 000 kg. The exhaust emission tests were performed under actual traffic conditions in the area of Poznań. For the tests a portable exhaust emission analyzers SEMTECH DS and AVL Micro Soot Sensor were used. Based on the obtained values of the emission of CO, NOx and PM the emission indexes were determined that provided information on the excess or non-excess of the unit values of the measured components specified in the EEV standard. The vehicle gas mileage was also determined through the carbon balance method.
Highlights
Vehicles playing a key role in the transportation of people and goods are utility vehicles
A great variety of such vehicles are used having different payload that is limited by their gross vehicle weight (GVW)
The above hints that the operation of utility vehicles generates high exhaust emissions and that particular attention should be paid to the reduction of their negative impact on the natural environment
Summary
Vehicles playing a key role in the transportation of people and goods are utility vehicles. These include light duty trucks, heavy-duty trucks, buses and coaches. As far as the vehicles for the heaviest tasks are concerned (‘heavy’ segment exceeding 16.000 GVW) their engines are characterized by high engine displacement. This results in a low gas mileage (determined in dm3/100 km) [1] and high exhaust volume. The most impactful, in terms of ecological consequences, is the operation of heavy-duty fleet in the centers of large, highly populated agglomerations (city buses, sanitation vehicles and delivery trucks). Despite the fact the newly registered vehicles are fitted with technologically and environmentally advanced powertrains (sophisticated aftertreatment systems with a provision for the newest Euro VI standard) it is still necessary to seek ways to reduce the
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