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Development of a Synthetic Diesel Exhaust

Journal Article
ISSN: 1946-3936, e-ISSN: 1946-3944
Published April 14, 2008 by SAE International in United States
Development of a Synthetic Diesel Exhaust
Citation: Fanick, E., Merritt, P., and Eng, K., "Development of a Synthetic Diesel Exhaust," SAE Int. J. Engines 1(1):65-70, 2009,
Language: English


A two-phase study was performed to establish a standard diesel exhaust composition which could be used in the future development of light-duty diesel exhaust aftertreatment. In the first phase, a literature review created a database of diesel engine-out emissions. The database consisted chiefly of data from heavy-duty diesel engines; therefore, the need for an emission testing program for light- and medium-duty engines was identified. A second phase was conducted to provide additional light-duty vehicle emissions data from current technology vehicles. Engine-out diesel exhaust from four 2004 model light-duty vehicles with a variety of engine displacements was collected and analyzed. Each vehicle was evaluated using five steady-state engine operating conditions and two transient test cycles (the Federal Test Procedure and the US06). Regulated emissions were measured along with speciation of both volatile and semi-volatile components of the hydrocarbons. The results from the literature search and the engine-out emissions data were used to suggest a possible synthetic diesel exhaust formulation.