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|Title:||On-road measurement of NH3 and N2O emissions from a Euro V heavy-duty vehicle|
|Authors:||SUAREZ BERTOA RICARDO; MENDOZA VILLAFUERTE PABLO; BONNEL Pierre; LILOVA Velizara; HILL Leslie; PERUJO MATEOS DEL PARQUE Adolfo; ASTORGA-LLORENS Maria|
|Citation:||ATMOSPHERIC ENVIRONMENT vol. 139 p. 167-175|
|Publisher:||PERGAMON PRESS LTD.|
|Type:||Articles in periodicals and books|
|Abstract:||The use of selective catalytic reduction systems (SCR) to abate NOx vehicular emissions brings new concerns on the emissions of the byproducts NH3 and N2O. Therefore, NH3 and N2O on-road emissions from a Euro V truck equipped with a SCR were measured in real time using a QCL-IR. Results bring to light possibility to perform this kind of real time measurements for other pollutants besides, hydrocarbons, NOx, CO and CO2. The capability to measure NH3 and N2O in a second-by-second basis will allow applying the currently agreed regulatory emissions evaluation for gaseous compounds. Average N2O emission factors calculated applying the current PEMS-based data analysis to all available windows from the tests ranged from 0.063 g/kWh to 0.139 g/kWh. Average NH3 concentrations ranged from 0.9 ppm to 5.7 ppm. Although calculated average N2O and NH3 emissions were within current limits, NOx emissions were substantially higher than Euro V limits under the studied conditions.|
|JRC Directorate:||Energy, Transport and Climate|
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