Emissions of Euro 3-5 Passenger Cars Measured Over Different Driving Cycles (original) (raw)
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2022
The study investigated the emission of Hydrocarbons (HC), Oxides of Nitrogen (NOx), Carbon monoxide (CO) and Carbon dioxide (CO 2) in vehicles. The study adopted a multiple research design approach to select five cities, garages and vehicles for the study. Whilst the cities were purposefully selected, the garages or fitting shops were selected by first identifying a garage owner who then introduces the researcher to another garage. This approach continued until the 200 targeted vehicles were reached. Two hundred vehicles used for the study were randomly selected as owners of vehicles visited the fitting shops for regular maintenance of their vehicles. The data was analyzed using analysis of variance (ANOVA) to compare the emission of various gasses. The study revealed that diesel vehicles emissions at 34.1 km/hr were considerably reduced when compared with EURO-6. At this speed CO emission was 0.01 g/km and lower than the standard level of 0.50 g/km. Oxides of Nitrogen (NOx) emissions of 2.3g/km was higher than the EURO-6 standard of 0.08g/km. Hydrogen Carbons (HC) emission of 0.65g/km was higher than EURO-6 standard of 0.17g/km. It is recommended that advanced technologies with no or little gaseous emissions must be adopted by vehicular manufacturing nations to curb or reduce the emission of harmful gases that leads to global warming.
Emissions of New Technology Euro 4 Vehicles
2009
Pollutants emissions by on-road transport is still responsible for air pollution in urban areas due to the growing number of circulating vehicle. Despite of technological improvements in terms of engine and after treatment devices performance, exhausts of vehicles decisively influence the urban air quality. In recent years particular concern is given to organic micropollutants and particulate emissions, for their dangerous effects on humans and environmental health.
Combustion Engines, 2019
Constantly increasing requirements regarding emission limits for harmful exhaust components force vehicle manufacturers to im-prove the construction of vehicle engines as well as exhaust gas cleaning systems. In addition to modifications in the field of technology of motor vehicles themselves, it is also important to study the impact of alternatives to petrol or diesel fuels. One of the most popular fossil fuel is liquid petroleum gas. In the paper, the results of comparative studies on the emission of harmful exhaust components of vehicles meeting the Euro 3 and Euro 6 standards in the field of petrol and LPG fuel use are presented. Emission measurement was performed using a portable emission measurement system from Horiba OBS-2200 under real traffic conditions. The presented results show the differences between the tested vehicles and the fuels used.
Exhaust emissions of regulated and unregulated pollutants of passenger cars
2004
Exhaust emissions of VOC speciation, aldehydes and other carbonyl compounds, polyaromatics and regulated pollutants are measured using a vehicle bench on a sample of passenger cars. 30 diesel and gasoline cars are tested, complying with ECE 1504 to Euro 3 emission standards, according to 10 real-world driving cycles based on European driving behaviour, with some of them adapted to vehicle size. The emission results of this large-scale measurement campaign show the influence of vehicle technology and driving behaviour on the emission of 100 individual pollutants. In addition, the results are discussed per VOC group and compared with other studies. The influence of the successive emission standards on the emission factors is very positive in most of cases. However, whereas hot CO2 is almost stable, diesel hot NOx, diesel hot and cold VOC, and the 6 most carcinogenic gasoline PAH have increased with standards. Diesel vehicles are less pollutant for CO, HC, CO2, VOC, but more pollutant ...