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Speciation of Hydrocarbon Emissions from a Medium Duty Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1996 by SAE International in United States
Annotation ability available
Growing concern over ground-level ozone and its role in smog formation has resulted in extensive investigation into identifying ozone sources. Motor vehicle exhaust, specifically oxides of nitrogen and hydrocarbons, have been identified as major ozone precursors in urban areas. Past research has concentrated on assessing the impact of emissions from gasoline fueled light duty vehicles. However, little work has been done on identifying ozone precursors from medium and heavy duty diesel fueled vehicles. This paper presents the results of testing performed on a Navistar T 444E 190 horsepower diesel engine which is certified as a light/heavy-duty emissions classification and is used in medium duty trucks up to 11,800 kg (26,000 lb) GVW. Regulated emissions and speciated hydrocarbon emissions were collected using a filter, bag and Tenax adsorption cartridges for both steady state and transient engine operation. Gaseous and semi volatile emissions were analyzed using Varian 3600 gas chromatographs. Using existing ozone reactivity data, ozone formation potentials of non-methane organic gases for each mode of operation were obtained. It was found that low carbon number alkenes were the most significant ozone precursors.
|Technical Paper||Hot Start Transient Emissions from a Mercedes OM 366 LA and a Detroit Diesel Operated on Chilean, California, and US 2D Fuels|
|Technical Paper||EPA HDEWG Program - Test Fuel Development|
CitationClark, N., Atkinson, C., McKain, D., Nine, R. et al., "Speciation of Hydrocarbon Emissions from a Medium Duty Diesel Engine," SAE Technical Paper 960322, 1996, https://doi.org/10.4271/960322.
Investigations Into Diesel Engine Combustion Processes
Number: SP-1159; Published: 1996-02-01
Number: SP-1159; Published: 1996-02-01
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