TY - JOUR
T1 - Time-resolved measurements of emission transients by mass spectrometry
AU - Partridge, William P.
AU - Storey, John M.E.
AU - Lewis, Samuel A.
AU - Smithwick, Robert W.
AU - Devault, Gerald L.
AU - Cunningham, Michael J.
AU - Currier, Neal W.
AU - Yonushonis, Thomas M.
PY - 2000
Y1 - 2000
N2 - High-speed diagnostics capable of accurately resolving emission transients are required to provide the most detailed understanding and optimization of active exhaust-emissions-treatment processes, such as NOX adsorbers. A portable, mass-spectrometry-based instrument with high temporal resolution, linear response and broad dynamic range is described. This instrument provides transient-concentration measurement capability for many relevant exhaust species including total NOX. In applications for evaluation of NO X-adsorber systems using heavy-duty diesel engines, the instrument revealed relevant emission transients not previously resolved with conventional analyzers. Specifically, the instrument resolved transient emissions associated with the competition between desorption and reduction rates. The temporal resolution of the instruments is sufficient to resolve kinetic rates of the NOX-adsorber system.
AB - High-speed diagnostics capable of accurately resolving emission transients are required to provide the most detailed understanding and optimization of active exhaust-emissions-treatment processes, such as NOX adsorbers. A portable, mass-spectrometry-based instrument with high temporal resolution, linear response and broad dynamic range is described. This instrument provides transient-concentration measurement capability for many relevant exhaust species including total NOX. In applications for evaluation of NO X-adsorber systems using heavy-duty diesel engines, the instrument revealed relevant emission transients not previously resolved with conventional analyzers. Specifically, the instrument resolved transient emissions associated with the competition between desorption and reduction rates. The temporal resolution of the instruments is sufficient to resolve kinetic rates of the NOX-adsorber system.
UR - http://www.scopus.com/inward/record.url?scp=85072452263&partnerID=8YFLogxK
U2 - 10.4271/2000-01-2952
DO - 10.4271/2000-01-2952
M3 - Conference article
AN - SCOPUS:85072452263
SN - 0148-7191
JO - SAE Technical Papers
JF - SAE Technical Papers
T2 - International Fall Fuels and Lubricants Meeting and Exposition
Y2 - 16 October 2000 through 19 October 2000
ER -