Analysis of Non-Road Mobile Machinery Homologation Standards in Relation to Actual Exhaust Emissions

Natalia Szymlet; Michalina Kamińska; Andrzej Ziółkowski; Jakub Sobczak

doi:10.3390/en17153624

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Title

Analysis of Non-Road Mobile Machinery Homologation Standards in Relation to Actual Exhaust Emissions

Authors

Natalia Szymlet (WILiT) ^{[ 1 ][ 2.7 ][ P ]}
Michalina Kamińska (WILiT) ^{[ 1 ][ 2.7 ][ P ]}
Andrzej Ziółkowski (WILiT) ^{[ 1 ][ 2.7 ][ P ]}
Jakub Sobczak (WILiT) ^{[ 2 ][ S ]}

^{[ 1 ]} Instytut Silników Spalinowych i Napędów, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | ^{[ 2 ]} Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | ^{[ P ]} employee | ^{[ S ]} student

Scientific discipline (Law 2.0)

[2.7] Civil engineering, geodesy and transport

Year of publication

2024

Published in

Energies

Journal year: 2024 | Journal volume: vol. 17 | Journal number: iss. 15

Article type

scientific article

Publication language

english

Keywords

EN

non-road mobile machinery
rail bus
exhaust emission
NRTC cycle
real operating conditions

Abstract

EN This article presents issues related to the current approval procedures in the group of off-road vehicles. Our research aimed to demonstrate significant differences between actual railway vehicle operation and stationary homologation tests regarding exhaust emissions. The research cycle consisted of analyzing emissions of toxic compounds from exhaust systems under real operating conditions, supplemented by a temporal share analysis based on the denormalized NRTC test upon which the tested object was homologated. Based on the conducted analyses, a significant difference was found between the actual operation of the tested railway vehicle and the stationary homologation test. By interpreting emission intensities within the parameter ranges of the propulsion unit’s operation, key areas with a significant impact on the vehicle’s overall emissions were identified. Based on the obtained results, a critical opinion is expressed regarding current homologation standards for the off-road vehicle group and the necessity for further empirical research in the area of actual operation of the tested vehicle group.

Pages (from - to)

1 - 20

DOI

10.3390/en17153624

URL

https://www.mdpi.com/1996-1073/17/15/3624

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

original author's version