Smoke, odor, and other emissions of concern in environmental pollution from four diesel engines were studied experimentally; engine design, operational mode, and fuel characteristics were considered as variable factors influencing the emissions. The engine included a turbocharged 4-cycle unit, normally aspirated 4-cycle units, and an air-scavenged 2-cycle engine. All were direct injection, truck-type power units. Fuel characteristics differed widely among eight fuels used in the study, with principal differences occurring in sulfur and aromatic content.Results of the experimental study showed that emissions levels in all categories are markedly influenced by engine operation. Within the group of engines tested, generally high emissions of unburned hydrocarbon are associated with the 2-cycle design, high smoke levels with the 4-cycle normally aspirated engines, and high emissions of NOX and oxygenates with the turbocharged 4-cycle engine. Exhaust odor intensity levels were roughly equivalent for all engine types. Emissions in all categories were surprisingly insensitive to variation in fuel characteristics, with the exception that smoke levels were significantly reduced with addition of a smoke suppressant additive to the fuel. Neither of two odor inhibitors was found effective.Smoke, odor, and other emissions of concern in environmental pollution from four diesel engines were studied experimentally; engine design, operational mode, and fuel characteristics were considered as variable factors influencing the emissions. The engine included a turbocharged 4-cycle unit, normally aspirated 4-cycle units, and an air-scavenged 2-cycle engine. All were direct injection, truck-type power units. Fuel characteristics differed widely among eight fuels used in the study, with principal differences occurring in sulfur and aromatic content.Results of the experimental study showed that emissions levels in all categories are markedly influenced by engine operation. Within the group of engines tested, generally high emissions of unburned hydrocarbon are associated with the 2-cycle design, high smoke levels with the 4-cycle normally aspirated engines, and high emissions of NOX and oxygenates with the turbocharged 4-cycle engine. Exhaust odor intensity levels were roughly equivalent for all engine types. Emissions in all categories were surprisingly insensitive to variation in fuel characteristics, with the exception that smoke levels were significantly reduced with addition of a smoke suppressant additive to the fuel. Neither of two odor inhibitors was found effective.Smoke, odor, and other emissions of concern in environmental pollution from four diesel engines were studied experimentally; engine design, operational mode, and fuel characteristics were considered as variable factors influencing the emissions. The engine included a turbocharged 4-cycle unit, normally aspirated 4-cycle units, and an air-scavenged 2-cycle engine. All were direct injection, truck-type power units. Fuel characteristics differed widely among eight fuels used in the study, with principal differences occurring in sulfur and aromatic content.Results of the experimental study showed that emissions levels in all categories are markedly influenced by engine operation. Within the group of engines tested, generally high emissions of unburned hydrocarbon are associated with the 2-cycle design, high smoke levels with the 4-cycle normally aspirated engines, and high emissions of NOX and oxygenates with the turbocharged 4-cycle engine. Exhaust odor intensity levels were roughly equivalent for all engine types. Emissions in all categories were surprisingly insensitive to variation in fuel characteristics, with the exception that smoke levels were significantly reduced with addition of a smoke suppressant additive to the fuel. Neither of two odor inhibitors was found effective.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Factors Influencing Diesel Emissions


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hum, R. W. (Autor:in) / Marshall, W. F. (Autor:in)

    Kongress:

    National West Coast Meeting ; 1968



    Erscheinungsdatum :

    01.02.1968




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Factors Influencing Vehicle Evaporative Emissions

    Wade, D. T. | SAE Technical Papers | 1967


    Factors influencing vehicle evaporative emissions

    Wade, D.T. | Engineering Index Backfile | 1967


    Design Factors That Affect Diesel Emissions

    Wulfhorst, David E. / Broering, Louis C. / Bascom, Roger C. | SAE Technical Papers | 1971


    Factors influencing performance of diesel-electric traction equipment

    Bowler, J.E. | Engineering Index Backfile | 1949


    Aspects of influencing oil consumption in diesel engines for low emissions

    Jakobs,R.J. / Westbrooke,K. / Goetze,DE et al. | Kraftfahrwesen | 1990