The emission of BTEX compounds during movement of passenger car in accordance with the NEDC

• Published in: The Science of the total environment 2018-10, Vol.639, p.339-349
• Main Authors: Adamović, Dragan, Dorić, Jovan, Vojinović Miloradov, Mirjana, Adamović, Savka, Pap, Sabolč, Radonić, Jelena, Turk Sekulić, Maja
• Format: Article
• Language: English
• Subjects: Air Pollutants - analysis; Air Pollution, Indoor - analysis; Air Pollution, Indoor - legislation & jurisprudence; Aromatic compounds; Benzene - analysis; Benzene Derivatives - analysis; Driving cycle; Emission model; Engine testing; Environmental Monitoring; Exhaust gases; Serbia; Toluene - analysis; Vehicle Emissions; Xylenes - analysis
• ISSN: 0048-9697; 1879-1026
• DOI: 10.1016/j.scitotenv.2018.05.142

The results of the research in the field of benzene, toluene, ethylbenzene and xylene isomers (BTEX) concentrations in exhaust gases of spark ignition engines under different operating conditions are presented in this paper. The aim of this paper is to gain a clearer insight into the impact of different engine working parameters on the concentrations of BTEX. The experimental investigation has been performed on the SCHENCK 230 W test stand with the controlled IC engine. The engine operating points have been chosen based on the results of a simulation and they are considered as the typical driving conditions according to the New European Driving Cycle. Concentration levels of BTEX compounds in exhaust gas mixtures have been determined by gas chromatography technique by using the combination of Supelcowax 10-Polyethylene glycol column and the PID detector. Based on the experimental research results, the emission model of BTEX compounds has been defined by the simulation of movement of a Fiat Punto Classic passenger car in accordance with the NEDC cycle. Using the results obtained within the simulation, the official statistics on the number of gasoline-powered cars on the territory of the Republic of Serbia and the European Commission data on the annual distance traveled by car, the amounts of BTEX compounds emitted annually per car have been estimated, as well as the emissions of the entire Serbian car fleet. [Display omitted] •BTEX emission at characteristic operating points of the driving cycle.•GC analysis of exhaust gases in different operating modes.•The prediction of total emissions based on a limited number of measurements.•Benzene emission of 0.04 g km−1.•The possibility of using the emission model in different driving patterns.