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OLS Field Name OLS Field Data
Main Title Characterization of Heavy-Duty Motor Vehicle Emissions Under Transient Driving Conditions.
Author Warner-Selph, M. A. ; Dietzmann, H. E. ;
CORP Author Southwest Research Inst., San Antonio, TX.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1984
Report Number EPA-68-02-3722; EPA/600/3-84/104;
Stock Number PB85-124154
Additional Subjects Exhaust emissions ; Motor vehicles ; Trucks ; Buses(Vehicles) ; Diesel engines ; Chassis ; Dynamometers ; Simulation ; Tests ; Ketones ; Aldehydes ; Phenols ; Mutagens ; Heavy duty vehicles ; Driving conditions
Library Call Number Additional Info Location Last
NTIS  PB85-124154 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 166p
Abstract The objective of this program was to characterize heavy-duty diesel truck and bus emissions produced during transient driving cycles. In the initial phase of the program an improved road-load simulation method was developed for use in operating large trucks on a chassis dynamometer. This method was used in testing vehicles on the chassis dynamometer. The second phase of testing involved operation of six vehicles on the chassis dynamometer removal of the engine and testing of the engines. Chassis emissions were then compared to engine emissions. Additionally, chassis tests were conducted over a range of dynamometer inertia settings for two of the six vehicles for the purpose of comparison with engine emissions. Baseline emissions were also measured on six buses, five single-axle tractors, and 17 dual-axle tractors over the chassis version of the transient cycle. Regulated emissions and several unregulated emissions were measured on baseline tests. Unregulated emissions included particulate, aldehydes and ketones, phenols, DOAS odor, various elements, nitropyrenes, and Ames mutagenic response.
PUB Date Free Form Nov 84
Category Codes 21G; 81J
NTIS Prices PC A08/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 504625426
Origin NTIS
Type CAT