Record Display for the EPA National Library Catalog


Main Title Emission characterization of a 2-stroke heavy-duty diesel coach engine and vehicle with and without a particulate trap : final report /
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 GPO,
Year Published 1985
Report Number EPA 460/3-84-015; EPA-68-03-3073
Stock Number PB85-239770
OCLC Number 48635296
Subjects Diesel motor exhaust gas ; Motor vehicles--Pollution control devices ; Diesel motor--Alternate fuels
Additional Subjects Exhaust emissions ; Air pollution ; Buses ; Soot ; Smoke ; Particles ; Performance evaluation ; Dynamometers ; Heavy duty vehicles ; Diesel engine exhaust ; Particulate traps ; Baseline measurements
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA 460/3-84-015 NVFEL Library/Ann Arbor, MI 07/15/2014 DISPERSAL
NTIS  PB85-239770 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xii, 126 pages : illustrations
Diesel soot or smoke has been regarded as a nuisance pollutant and potential health hazard, especially in congested urban areas where diesel buses operate. Exhaust emissions from a DDAD 6V-71 coach engine and a similarly-powered 1980 GMC RTS-II coach, fitted with a non-catalyzed particulate trap, were characterized over various Federal Test Procedures for heavy-duty engines, including an experimental test cycle for buses. Regeneration was accomplished using an in-line burner in the exhaust to raise the engines' idle exhaust gas temperature from 120 to 700 C. Trap testing included approximately 15 hours of engine operation and 100 miles of bus operation. Particulate emissions were reduced by an average of 79 percent and smoke emissions were nil using the trap. The effect of the trap on regulated and other unregulated emissions was generally minimal.
"Final report period 4-20-82 to 5-28-83." "March 1985." Microfiche.