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RECORD NUMBER: 8 OF 15

OLS Field Name OLS Field Data
Main Title Emissions characterization of heavy-duty diesel and gasoline engines and vehicles /
Author Ullman, Terry L. ; Hare, C. T.
Other Authors
Author Title of a Work
Hare, Charles T.
CORP Author Southwest Research Inst., San Antonio, TX.;Environmental Protection Agency, Ann Arbor, MI. Emission Control Technology Div.
Publisher U.S. Environmental Protection Agency, Office of Mobile Source Air Pollution Control, Emission Control Technology Division,
Year Published 1985
Report Number EPA/460/3-85/001; EPA-68-03-2706
Stock Number PB85-233658
Subjects Diesel motor--Alternative fuels. ; Diesel motor--Alternate fuels
Additional Subjects Exhaust emissions ; Air pollution control ; Particles ; Nitrogen oxides ; Hydrocarbons ; Aldehydes ; Buses ; Carbon monoxide ; Tables(Data) ; Carbon dioxide ; Concentration(Composition) ; Performance evaluation ; Heavy duty vehicles ; Diesel engine exhaust ; Air pollution detection ; Federal test procedure
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB85-233658 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 346 pages ; 28 cm
Abstract
Laboratory emissions evaluations were performed on heavy-duty diesel and gasoline engines and vehicles. Results from using water injection (unstabilized macro-emulsion formed in the injection pump) on a heavy-duty diesel engine showed major reductions in particulate and NOx emissions, except during idle and light load conditions. Test work carried out on the heavy-duty gasoline engine running at high load confirmed that BaP emissions did exist, but that the levels emitted were low, and that they decreased with leaner f/a ratio. Selected maladjustments (simulating wear of inadequate maintenance) of the Cummins VTB-903 substantially increased HC, smoke and particulate emission levels. Maladjustments of the Detroit Diesel 6V-71N coach engine resulted in lower HC and NOx emission levels, but higher CO emissions, smoke, and particulate. Emissions over various chassis test cycles from three in-service transit buses proved to be highly variable from one bus to another. In addition, emissions from each bus were very test cycle-sensitive.
Notes
Final report. "May 1985." Microfiche.