Real-world emission factors for SUVs using on-board emission testing and geo-computation

Smit, R; Awadallah, M; Bagheri, S; Surawski, NC

Real-world emission factors for SUVs using on-board emission testing and geo-computation

Smit, R Awadallah, M Bagheri, S Surawski, NC

Permalink

Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Transportation Research Part D: Transport and Environment, 2022, 107, pp. 103286
Issue Date:: 2022-06-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

The embargo period expires on 1 Jun 2024

Adobe PDF

Download Submitted versionAdobe PDF (2.9 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Smit, R
dc.contributor.author	Awadallah, M
dc.contributor.author	Bagheri, S
dc.contributor.author	Surawski, NC
dc.date.accessioned	2022-07-18T03:14:56Z
dc.date.available	2022-07-18T03:14:56Z
dc.date.issued	2022-06-01
dc.identifier.citation	Transportation Research Part D: Transport and Environment, 2022, 107, pp. 103286
dc.identifier.issn	1361-9209
dc.identifier.uri	http://hdl.handle.net/10453/158980
dc.description.abstract	A Portable Emissions Measurement System (PEMS) was used to measure emissions of five sports utility vehicles (SUVs) in a wide range of real-world driving conditions. The program included testing of fuel quality, coast-down and emissions in start, hot running and extended idling conditions. Geo-computation methods were used to add critical information (road gradient) to the PEMS data. Results from this study are generally in good agreement with international PEMS data. Hot running NOx emission factors are on average seven times higher than the type-approval limit for diesel SUVs, and they reach about 2100 and 400 mg/km in urban conditions for NOx and NO2, respectively. They are 7 (NOx) and 4 (NO2) times higher than current emission factors in COPERT Australia. COPERT Australia emission algorithms for CO2 are well behaved and the PEMS data suggest an update is not required. COPERT Australia emission algorithms should be revised for diesel SUVs (NOx, NO2) and petrol SUVs (CO, THC, NO2) to ensure accurate estimation of vehicle emissions at fleet level. Inclusion of logistic regression is proposed for future COPERT updates.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	QLD Department of Environment and Science
dc.relation.ispartof	Transportation Research Part D: Transport and Environment
dc.relation.isbasedon	10.1016/j.trd.2022.103286
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0502 Environmental Science and Management, 1205 Urban and Regional Planning, 1507 Transportation and Freight Services
dc.subject.classification	Logistics & Transportation
dc.title	Real-world emission factors for SUVs using on-board emission testing and geo-computation
dc.type	Journal Article
utslib.citation.volume	107
utslib.for	0502 Environmental Science and Management
utslib.for	1205 Urban and Regional Planning
utslib.for	1507 Transportation and Freight Services
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2024-06-01T00:00:00+1000Z
dc.date.updated	2022-07-18T03:14:54Z
pubs.publication-status	Published
pubs.volume	107

Abstract:

A Portable Emissions Measurement System (PEMS) was used to measure emissions of five sports utility vehicles (SUVs) in a wide range of real-world driving conditions. The program included testing of fuel quality, coast-down and emissions in start, hot running and extended idling conditions. Geo-computation methods were used to add critical information (road gradient) to the PEMS data. Results from this study are generally in good agreement with international PEMS data. Hot running NOx emission factors are on average seven times higher than the type-approval limit for diesel SUVs, and they reach about 2100 and 400 mg/km in urban conditions for NOx and NO2, respectively. They are 7 (NOx) and 4 (NO2) times higher than current emission factors in COPERT Australia. COPERT Australia emission algorithms for CO2 are well behaved and the PEMS data suggest an update is not required. COPERT Australia emission algorithms should be revised for diesel SUVs (NOx, NO2) and petrol SUVs (CO, THC, NO2) to ensure accurate estimation of vehicle emissions at fleet level. Inclusion of logistic regression is proposed for future COPERT updates.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/158980