Emission standards development for an inspection/maintenance program
Emission standards development for an inspection/maintenance program
This paper presents the results of vehicle exhaust measurements that were used to establish emission standards for an inspection/maintenance (I/M) program. For this purpose, a total number of 100 private autos distributed across model years ranging between 1972 and 2002 were tested under idling conditions. The monitored indicators included air to fuel ratio (%), CO (%), CO2 (%), HC (parts per million, ppm), NOx (ppm), and O2 (%). Private autos with model years greater than 1994 were found to be compliant with international standards and are relatively well maintained. Emissions from older models increased significantly with a lack of engine maintenance. The paper concludes with criteria for proposing I/M emission standards based on exhaust measurements taking country-specific socioeconomic characteristics into consideration.
1330-1339
Kazopoulo, M.
2424a063-bc44-4fda-9870-6da6809fdb5d
El Fadel, M.
e4238001-2af0-4f3a-b8a4-8b6ed3e1285f
Kaysi, I.
a313f75f-ed01-4f4a-9435-a08f8960f33e
September 2005
Kazopoulo, M.
2424a063-bc44-4fda-9870-6da6809fdb5d
El Fadel, M.
e4238001-2af0-4f3a-b8a4-8b6ed3e1285f
Kaysi, I.
a313f75f-ed01-4f4a-9435-a08f8960f33e
Abstract
This paper presents the results of vehicle exhaust measurements that were used to establish emission standards for an inspection/maintenance (I/M) program. For this purpose, a total number of 100 private autos distributed across model years ranging between 1972 and 2002 were tested under idling conditions. The monitored indicators included air to fuel ratio (%), CO (%), CO2 (%), HC (parts per million, ppm), NOx (ppm), and O2 (%). Private autos with model years greater than 1994 were found to be compliant with international standards and are relatively well maintained. Emissions from older models increased significantly with a lack of engine maintenance. The paper concludes with criteria for proposing I/M emission standards based on exhaust measurements taking country-specific socioeconomic characteristics into consideration.
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Published date: September 2005
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Local EPrints ID: 53012
URI: http://eprints.soton.ac.uk/id/eprint/53012
ISSN: 0733-9372
PURE UUID: 4f19ec46-5946-4528-a5d0-808030fe3e0f
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Date deposited: 14 Jul 2008
Last modified: 15 Mar 2024 10:39
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Author:
M. Kazopoulo
Author:
M. El Fadel
Author:
I. Kaysi
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