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The Effects of Engine and Fuel Parameters on Diesel Exhaust Emissions during Discrete Transients in Speed and Load
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Abstract
Diesel exhaust emission levels have been measured during discrete transients in speed and load, and with changes made to the engine and fuel. Particulate, oxides of nitrogen, unburned hydrocarbon, and carbon monoxide measurements were made for two fuels, DF2 and 5 percent water-in-fuel microemulsion, for both a standard Caterpillar 3304 and a modified 3304 engine. Engine modifications included increasing compression ratio and retarding injection timing. This paper examines the effects of the water addition and engine modification on the steady-state and transient emission levels. In general, the addition of water decreased the particulate and oxides of nitrogen emission levels for the standard engine, but increased the levels of hydrocarbons and carbon monoxide. For the modified engine, the water addition resulted in a slight decrease in oxides of nitrogen and particulate matter at high speed and load conditions. The engine modification had a favorable effect on the exhaust emissions at high load conditions.
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Callahan, T., Ryan, T., Dietzmann, H., and Waytulonis, R., "The Effects of Engine and Fuel Parameters on Diesel Exhaust Emissions during Discrete Transients in Speed and Load," SAE Technical Paper 850110, 1985, https://doi.org/10.4271/850110.Also In
References
- Ryan, T.W. III Storment J.O. Wright B.R. Waytulonis R.W. “The Effects of Fuel Properties and Composition on Diesel Engine Exhaust Emissions - A Review,” SAE Paper 810953 September 1981
- O'Neal G.B. Storment J.O. Waytulonis R.W. “Control of Diesel Exhaust Emissions in Underground Coal Mines - Single-Cylinder Engine Experiments With Modified and Non-Conventional Fuels,” SAE Paper 810954 September 1981
- Callahan T.J. Ryan, T.W. III O'Neal G.B. Waytulonis R.W. “Control of Diesel Exhaust Emissions in Underground Coal Mines - Single-Cylinder Engine Optimization for Water-in-Fuel Microemulsions,” SAE Paper 830553 February 1983
- O'Neal G.B. Dietzmann H.E. Ryan, T.W. III Waytulonis R.W. “Control of Diesel Exhaust Emissions in Underground Coal Mines - Steady-State and Transient Engine Test With a Five-Percent Water-in-Fuel Microemulsion,” SAE Paper 830555 February 1983
- Callahan T.J. Ryan, T.W. III Dietzmann H.E. Waytulonis R.W. “The Effects of Discrete Transients in Speed and Load on Diesel Exhaust Emissions,” 1985 SAE Congress and Exposition
- Federal Register “Gaseous Emission Regulations for 1984 and Later Model Year Heavy-Duty Engines,” 45 14 4136 4227 January 21 1980
- Federal Register “Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines; Particulate Regulation for Heavy-Duty Diesel Engines,” 46 4 1910 1967 January 7 1981