On-road exhaust emission testing

Merkisz, Jerzy

doi:10.19206/ce-117086

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…The exhaust gases are directed to the device via dilution system and temperature maintenance system. The pre-filter collects particles larger than 1 µm in diameter that are outside the measuring range devices [37,38].…”

Section: Pm Emissionsmentioning

confidence: 99%

Physicochemical Analysis of the Particulate Matter Emitted from Road Vehicle Engines

et al. 2021

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Air pollution with particulate matter from transport sources is a serious problem in terms of air quality and its impact on human health. The article attempts to test the emitted particles from piston engines in terms of their physical properties and chemical composition. The research test objects were a diesel engine with Euro 5 emission class and a petrol engine, which was a part of the scooter drive system. The conducted research consisted in the analysis of the number, mass, and volume of particles, as well as chemical analysis, using the methods: Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscope with Energy Dispersive Spectroscopy (SEM-EDS), and Evolved gas analysis (EGA). The diesel engine emitted particles in the range of 50–120 nm. With the increase in the engine load, the specific emission of particulate matter increased. In the case of a gasoline engine running without load, the emission of particles smaller than 30 nm was mainly observed. Increasing load of the gasoline engine resulted in an increase in both the concentration of particles and their diameter (average diameter to 90 nm). FTIR analysis showed higher black carbon content in the case of the sample taken from the diesel engine. In order to carry out a more detailed chemical analysis, the EGA and SEM methods were used. On their basis, the chemical composition of particles was presented, and a greater ability to agglomerate of a gasoline engine particles was found.

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Section: Pm Emissionsmentioning

confidence: 99%

Physicochemical Analysis of the Particulate Matter Emitted from Road Vehicle Engines

et al. 2021

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Evaluating the environmental costs in Poland of city buses meeting the Euro VI norm based on tests in real operating conditions

Rymaniak

Fuć

Lijewski

et al. 2019

AoT

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The article analyzes the environmental costs which consisted of determining the annual cost for gases and particles released into the atmosphere by city buses meeting the Euro VI norm. To this end, exhaust emissions of a city bus equipped with a conventional drive system were performed. The vehicle had a length of 18m and was powered by a CI engine with a swept volume of 10,5 dm3, with a maximum power of 240 kW. In order to measure the ecological indicators, tests were performed in real driving conditions using the PEMS system. The apparatus made it possible to measure the concentration of gaseous compounds and particulate matter in the exhaust, which made it possible to determine the road exhaust emissions of the tested vehicle. The research was carried out on a test route including urban and suburban roads in accordance with legislative guidelines. The measurements showed that the bus met the exhaust emission limits determined on the basis of measuring windows defined in relation to the work generated by the drive system. In addition to information on the emissivity of the vehicle, the annual emissions from city buses meeting the Euro VI standard in Poland were also estimated. The information contained in the central vehicle register for the number of vehicles registered in Poland that meet the latest emission standards has been used for this purpose.

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On-road exhaust emission testing

Cited by 2 publications

References 7 publications

Physicochemical Analysis of the Particulate Matter Emitted from Road Vehicle Engines

Physicochemical Analysis of the Particulate Matter Emitted from Road Vehicle Engines

Evaluating the environmental costs in Poland of city buses meeting the Euro VI norm based on tests in real operating conditions

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