This work analyses the potential air quality improvements resulting from three fleet electrification scenarios (similar to 13, 26 and 40%) by replacing conventional vehicles with Electric Battery Vehicles (EBVs), Plug-in Hybrid Electric Vehicles (PHEVs) and Hybrid Electric Vehicles (HEVs). This study has been performed for the cities of Barcelona and Madrid (Spain), where road transport is the primary emission source. In these urban areas, several air quality problems are present, mainly related to NO2 and particulate matter. The WRF-ARW/HERMESv2/CMAQ model system has been applied at high spatial (1 x 1 km(2)) and temporal (1 h) resolution. The results show that fleet electrification offers a potential for emission abatement, especially related to NO and CO. Regarding the more ambitious scenario (similar to 40% fleet electrification), reductions of 11% and 17% of the total NOx emissions are observed in Barcelona and Madrid respectively. These emissions reductions involve air quality improvements in NO2 maximum hourly values up to 16%: reductions up to 30 and 35 mu g m(-3) in Barcelona and Madrid, respectively. Furthermore, an additional scenario has been defined considering electric generation emissions associated with EBVs and PHEVs charging from a combined-cycle power plant. These charging emissions would produce slight NO2 increases in the downwind areas of <3 mu g m(-3). Thus, fleet electrification would improve urban air quality even when considering emissions associated with charging electric vehicles. However, two further points should be considered. First, fleet electrification cannot be considered a unique solution, and other management strategies may be defined. This is especially important with respect to particulate matter emissions, which are not significantly reduced by fleet electrification (<5%) due to the high weight of non-exhaust emissions. Second, a significant introduction of electric vehicles (26-40%) involving all vehicle categories is required to improve urban air quality. (C) 2014 Elsevier Ltd. All rights reserved. ; Postprint (published version)
The Potential impacts of electric vehicles on air quality in the urban areas of Barcelona and Madrid (Spain)
01.12.2014
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Air quality management , MODEL , EUROPE , TRANSPORT SECTOR , Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica , Air quality modelling , Aire -- Qualitat -- Gestió , Vehicles elèctrics híbrids -- Aspectes ambientals , Electric vehicles , Plug-in hybrid electric vehicle , SYSTEM , Hybrid electric vehicles -- Environmental aspects , Àrees temàtiques de la UPC::Enginyeria mecànica::Disseny i construcció de vehicles::Automòbils , Air quality -- Measurement -- Mathematical models , Emission inventory , Automobiles -- Motors -- Exhaust gas , CHEMISTRY , Automòbils -- Motors -- Gas d'escapament , Aire -- Qualitat -- Mesurament -- Models matemàtics , Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental , EMISSIONS
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