Title
Emission testing of diesel multiple units complying with different emission standards during real operating conditions
Authors
[ 1 ] Instytut Napędów i Lotnictwa, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ 2 ] Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ P ] employee | [ S ] student | [ SzD ] doctoral school student
Scientific discipline (Law 2.0)
Year of publication
2024
Published in
Article type
scientific article
Publication language
english
Abstract
EN This article presents comparative studies on pollutant emissions from railbuses meeting different emission standards (Stage IIIA and Stage IIIB). Measurements were conducted under real-world operating conditions on routes regularly serviced by the tested vehicles during passenger operations. The obtained results enabled the evaluation of vehicle operating conditions and propulsion systems, the assessment of emission intensity as a function of driving parameters, the determination of road-specific and unit-specific emission factors, and comparisons with homologation limits. The vehicle compliant with the newer emission standard demonstrated a reduced environmental impact, particularly regarding particulate matter emissions. Object A achieved 0.03 g/km and 0.005 g/kWh in the test, while the second object achieved 0.14 g/km and 0.03 g/kWh. Significant differences were also recorded for CO. The object with the higher approval standard achieved a CO emission of 9 g/km and 1.36 g/kWh. For vehicle B, obtained 14.71 g/km and 3.22 g/kWh respectively. However, the analysis revealed that selected toxic compounds exceeded legislated limits during testing. The tested vehicles exceeded the permitted NOx and HC pollutant emission standards by between 5% and 50%.
Date of online publication
20.02.2025
Pages (from - to)
44 - 53
License type
CC BY (attribution alone)
Open Access Mode
open journal
Open Access Text Version
final published version
Date of Open Access to the publication
in press
Full text of article
Access level to full text
public
Ministry points / journal
20
System created by Poznań University of Technology
and Poznan Supercomputing and Networking Center
Log in through eKonto to add to SIS