Surveillance study of smoke from heavy-duty diesel-powered vehicles: southwestern U. S. A. (final report)

Technical Report · Tue Jan 01 04:00:00 EST 1974

OSTI ID:7345808

Storment, J O; Springer, K J

The effectiveness of the federal diesel smoke regulations in controlling smoke emissions from 64 heavy duty diesel engines engaged in routine automotive service was determined. The rate of smoke increase or deterioration was more dependent on how the miles were accumulated than on total mileage. The a and b smoke factors from the acceleration and lugdown portions of the Federal test were consistently related to engine make and model. At the end of one year of testing, 13 engines, or 20 percent of the trucks, registered smoke opacity in excess of either the a or b smoke limits for 1970. Twelve of the 13 engines exceeded the Federal limit during the full power lugdown portion of the test. Fifty-nine vehicles were tested for gaseous emissions of unburned hydrocarbons, carbon monoxide, and nitrogen oxides, and 43 engines, or 73 percent, met the 1973 California standards for heavy duty diesel engines. None of these engines met the 1975 California emissions standards.

• Research Organization: Southwest Research Inst., San Antonio, Tex. (USA)
• OSTI ID: 7345808
• Report Number(s): PB-232682; EPA-460/3-74-003
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330701 -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
330704 -- Emission Control-- Hydrocarbons
330705* -- Emission Control-- Particulates
AEROSOLS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DIESEL ENGINES
DISPERSIONS
ENGINES
EXHAUST GASES
FEDERAL TEST PROCEDURE
GASEOUS WASTES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION REGULATIONS
REGULATIONS
RESIDUES
SMOKES
SOLS
TESTING
TRUCKS
VEHICLES
WASTES