Gaseous and particulate emissions from gasoline- and diesel-powered heavy-duty trucks

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

OSTI ID:5569547

Braddock, J N; Perry, N

Gaseous and particulate emission rates from seven class 2B, one class 5 and six class 6 heavy-duty gasoline- and diesel-powered trucks were determined using transient chassis dynamometer test procedures. All vehicles were tested at approximately 70% of their rated gross vehicle weight over the Heavy-Duty Transient Cycle and the Durham Road Route driving-cycles. The sensitivity of emission rates to vehicle configuration, engine design, and driving cycle characteristics was examined. Emissions characterization included total hydrocarbons, carbon monoxide, oxides of nitrogen, fuel economy, total particulate matter, particulate organics, inert material, particle size less than 2 micrometers, and lead, bromine, and chlorine analyses. All class 2B truck emission rates were less than class 5 or 6 truck emission rates. Hydrocarbon and carbon monoxide emissions and fuel consumption were significantly higher with the gasoline trucks than with the diesel trucks. Total particulate, particulate organics, and inert material emissions were significantly greater with the diesel trucks. Hydrocarbons, carbon monoxide, total particulate emissions, and fuel consumption were sensitive to the characteristics of the transient driving cycles.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Atmospheric Sciences Research Lab.; Northrop Services, Inc., Research Triangle Park, NC (USA)
• OSTI ID: 5569547
• Report Number(s): PB-85-167948/XAB; EPA-600/D-85/037
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DIESEL ENGINES
DYNAMOMETERS
ENERGY CONSUMPTION
ENGINES
FUEL CONSUMPTION
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
MEASURING INSTRUMENTS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION
TRUCKS
VEHICLES