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Analysis of the high instantaneous NOx emissions from Euro 6 diesel passenger cars under real driving conditions

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  • Mera, Zamir
  • Fonseca, Natalia
  • López, José-María
  • Casanova, Jesús

Abstract

In real-world driving, most Euro 5 and 6 diesel passenger cars exceed the nitrogen oxides (NOx) emission limits of type approval procedure. The emission factors of the fleet of Euro 6 vehicles show high variability, irrespective of the NOx control technology. This comprehensive study focused on the events of high instantaneous NOx emissions produced under real driving, to assess their impact on emission factors. Additionally, the relationships of these events with different parameters measured using portable emissions measurement system (PEMS) were determined. Three Euro 6b diesel passenger cars with exhaust gas recirculation (EGR), lean-burn NOx trap (LNT) and selective catalytic reduction (SCR) were tested based on the real driving emissions (RDE) regulation.

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  • Mera, Zamir & Fonseca, Natalia & López, José-María & Casanova, Jesús, 2019. "Analysis of the high instantaneous NOx emissions from Euro 6 diesel passenger cars under real driving conditions," Applied Energy, Elsevier, vol. 242(C), pages 1074-1089.
    • Handle: RePEc:eee:appene:v:242:y:2019:i:c:p:1074-1089
    DOI: 10.1016/j.apenergy.2019.03.120
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