Emission characterization of a 2-stroke heavy-duty diesel coach engine and vehicle with and without a particulate trap. Final report, 20 April 1982-28 May 1983

Technical Report · Fri Mar 01 04:00:00 EST 1985

OSTI ID:6200714

Ullman, T L; Hare, C T

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.

• Research Organization: Southwest Research Inst., San Antonio, TX (USA)
• OSTI ID: 6200714
• Report Number(s): PB-85-239770/XAB
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330705 -- Emission Control-- Particulates
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
BUSES
DIESEL ENGINES
DYNAMOMETERS
ENGINES
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
PARTICLES
PARTICULATES
POLLUTION ABATEMENT
REMOVAL
SOOT
TRANSPORTATION SYSTEMS
VEHICLES
WASTES