Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions
The transport sector is one of the main sources air pollutants. Different exhaust after-treatment systems have been implemented over the years to control the emissions of criteria pollutants. However, while reducing the emissions of the target compounds these systems can lead to the emissions of oth...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-02-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/11/2/204 |
| _version_ | 1818907769182355456 |
|---|---|
| author | Ricardo Suarez-Bertoa Martin Pechout Michal Vojtíšek Covadonga Astorga |
| author_facet | Ricardo Suarez-Bertoa Martin Pechout Michal Vojtíšek Covadonga Astorga |
| author_sort | Ricardo Suarez-Bertoa |
| collection | DOAJ |
| description | The transport sector is one of the main sources air pollutants. Different exhaust after-treatment systems have been implemented over the years to control the emissions of criteria pollutants. However, while reducing the emissions of the target compounds these systems can lead to the emissions of other pollutants and/or greenhouse gases such as NH<sub>3</sub> or N<sub>2</sub>O. Following the implementation of the Real Driving Emissions (RDE) test procedure in the EU, vehicles have been equipped with more complex after-treatment configurations. The impact that these technologies may have on the emissions of non-regulated pollutants during real-world driving have not been evaluated until now. In the current study we present the on-road emissions of a series of non-regulated pollutants, including NH<sub>3</sub>, N<sub>2</sub>O, CH<sub>4</sub> and HCHO, measured with a portable FTIR from a series of Euro 6d, Euro 6c and Euro 6d-TEMP, gasoline diesel and compressed natural gas (CNG) vehicles during real-world testing. The obtained results show that it is possible to measure N<sub>2</sub>O, NH<sub>3</sub>, CH<sub>4</sub> and HCHO during on-road operation. The results also highlight the importance of the measurement of the emissions of these pollutants during real-world driving, as the emissions of NH<sub>3</sub> (a particulate matter precursor) and those of N<sub>2</sub>O and CH<sub>4</sub> (green-house gases) can be high from some vehicle technologies. NH<sub>3</sub> emissions were up to 49 mg/km for gasoline passenger cars, up to 69 mg/km for the CNG light-commercial vehicle and up to 17 mg/km a diesel passenger car equipped with a selective catalytic reduction system (SCR). On the other hand, N<sub>2</sub>O and CH<sub>4</sub> emissions accounted for up to 9.8 g CO<sub>2</sub> eqv/km for a diesel passenger car equipped with a combination of diesel oxidation catalysts (DOC), lean NO<sub>x</sub> traps (LNT), SCR and possibly an ammonia slip catalyst ASC. |
| first_indexed | 2024-12-19T22:00:23Z |
| format | Article |
| id | doaj.art-3a991f48d8544ccd9e1ef34cfd33b8ed |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-12-19T22:00:23Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-3a991f48d8544ccd9e1ef34cfd33b8ed2022-12-21T20:04:10ZengMDPI AGAtmosphere2073-44332020-02-0111220410.3390/atmos11020204atmos11020204Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving ConditionsRicardo Suarez-Bertoa0Martin Pechout1Michal Vojtíšek2Covadonga Astorga3European Commission Joint Research Centre, 21027 Ispra, ItalyDepartment of Vehicles and Ground Transport, Faculty of Engineering, Czech University of Life Sciences, Kamycka 127, 16521 Praha, Czech RepublicDepartment of Vehicles and Engines, Technical University of Liberec, 46117 Liberec, Czech RepublicEuropean Commission Joint Research Centre, 21027 Ispra, ItalyThe transport sector is one of the main sources air pollutants. Different exhaust after-treatment systems have been implemented over the years to control the emissions of criteria pollutants. However, while reducing the emissions of the target compounds these systems can lead to the emissions of other pollutants and/or greenhouse gases such as NH<sub>3</sub> or N<sub>2</sub>O. Following the implementation of the Real Driving Emissions (RDE) test procedure in the EU, vehicles have been equipped with more complex after-treatment configurations. The impact that these technologies may have on the emissions of non-regulated pollutants during real-world driving have not been evaluated until now. In the current study we present the on-road emissions of a series of non-regulated pollutants, including NH<sub>3</sub>, N<sub>2</sub>O, CH<sub>4</sub> and HCHO, measured with a portable FTIR from a series of Euro 6d, Euro 6c and Euro 6d-TEMP, gasoline diesel and compressed natural gas (CNG) vehicles during real-world testing. The obtained results show that it is possible to measure N<sub>2</sub>O, NH<sub>3</sub>, CH<sub>4</sub> and HCHO during on-road operation. The results also highlight the importance of the measurement of the emissions of these pollutants during real-world driving, as the emissions of NH<sub>3</sub> (a particulate matter precursor) and those of N<sub>2</sub>O and CH<sub>4</sub> (green-house gases) can be high from some vehicle technologies. NH<sub>3</sub> emissions were up to 49 mg/km for gasoline passenger cars, up to 69 mg/km for the CNG light-commercial vehicle and up to 17 mg/km a diesel passenger car equipped with a selective catalytic reduction system (SCR). On the other hand, N<sub>2</sub>O and CH<sub>4</sub> emissions accounted for up to 9.8 g CO<sub>2</sub> eqv/km for a diesel passenger car equipped with a combination of diesel oxidation catalysts (DOC), lean NO<sub>x</sub> traps (LNT), SCR and possibly an ammonia slip catalyst ASC.https://www.mdpi.com/2073-4433/11/2/204euro 7vehicle emissionsrdeunregulated pollutantsammonian<sub>2</sub>ohcho |
| spellingShingle | Ricardo Suarez-Bertoa Martin Pechout Michal Vojtíšek Covadonga Astorga Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions Atmosphere euro 7 vehicle emissions rde unregulated pollutants ammonia n<sub>2</sub>o hcho |
| title | Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions |
| title_full | Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions |
| title_fullStr | Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions |
| title_full_unstemmed | Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions |
| title_short | Regulated and Non-Regulated Emissions from Euro 6 Diesel, Gasoline and CNG Vehicles under Real-World Driving Conditions |
| title_sort | regulated and non regulated emissions from euro 6 diesel gasoline and cng vehicles under real world driving conditions |
| topic | euro 7 vehicle emissions rde unregulated pollutants ammonia n<sub>2</sub>o hcho |
| url | https://www.mdpi.com/2073-4433/11/2/204 |
| work_keys_str_mv | AT ricardosuarezbertoa regulatedandnonregulatedemissionsfromeuro6dieselgasolineandcngvehiclesunderrealworlddrivingconditions AT martinpechout regulatedandnonregulatedemissionsfromeuro6dieselgasolineandcngvehiclesunderrealworlddrivingconditions AT michalvojtisek regulatedandnonregulatedemissionsfromeuro6dieselgasolineandcngvehiclesunderrealworlddrivingconditions AT covadongaastorga regulatedandnonregulatedemissionsfromeuro6dieselgasolineandcngvehiclesunderrealworlddrivingconditions |