Experimental and numerical studies were performed to investigate the simultaneous reduction of NOx and CO for stoichiometric diesel combustion with a 3-way catalyst. A single-cylinder engine was used for the experiments and KIVA simulations were used in order to characterize the combustion efficiency and emissions of throttled stoichiometric diesel combustion at 0.7 bar boost pressure and 90MPa injection pressure. In addition, the efficiency of emission conversion with the 3-way catalysts in stoichiometric diesel combustion was investigated experimentally. The results showed CO and NOx emissions can be controlled with the 3-way catalyst in spite of the fact that CO increases more at high equivalence ratios compared to conventional diesel combustion (i.e., lean combustion). At stoichiometric operation, the 3-way catalyst reduced CO and NOx emissions by up to 95%, which achieves lower emissions compared to conventional diesel combustion or low temperature diesel combustion, while keeping better fuel consumption than a comparable gasoline engine.
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ASME 2009 Internal Combustion Engine Division Spring Technical Conference
May 3–6, 2009
Milwaukee, Wisconsin, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-4340-6
PROCEEDINGS PAPER
Reduction of NOx and CO Emissions in Stoichiometric Diesel Combustion Using a 3-Way Catalyst
Junghwan Kim,
Junghwan Kim
University of Wisconsin - Madison, Madison, WI
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Rolf D. Reitz,
Rolf D. Reitz
University of Wisconsin - Madison, Madison, WI
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Sung Wook Park,
Sung Wook Park
Hanyang University, Seoul, South Korea
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Kian Sung
Kian Sung
Gangwon Provincial College, Gangwon, South Korea
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Junghwan Kim
University of Wisconsin - Madison, Madison, WI
Rolf D. Reitz
University of Wisconsin - Madison, Madison, WI
Sung Wook Park
Hanyang University, Seoul, South Korea
Kian Sung
Gangwon Provincial College, Gangwon, South Korea
Paper No:
ICES2009-76043, pp. 389-397; 9 pages
Published Online:
August 20, 2009
Citation
Kim, J, Reitz, RD, Park, SW, & Sung, K. "Reduction of NOx and CO Emissions in Stoichiometric Diesel Combustion Using a 3-Way Catalyst." Proceedings of the ASME 2009 Internal Combustion Engine Division Spring Technical Conference. ASME 2009 Internal Combustion Engine Division Spring Technical Conference. Milwaukee, Wisconsin, USA. May 3–6, 2009. pp. 389-397. ASME. https://doi.org/10.1115/ICES2009-76043
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