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NOx Measurement Errors in Ammonia-Containing Exhaust
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2007 by SAE International in United States
Annotation ability available
Modern diesel aftertreatment systems may produce ammonia (NH3), especially in gas samples from midbed locations. NH3 causes significant measurement errors in NO, NO2, and NOx measurements for several NOx measurement technologies.
A standard addition test was run adding NO, NO2, and/or NH3 to a diesel engine exhaust. Chemiluminescent (CLD), FTIR, and chemical ionization mass spectrometer (CIMS) instruments were used in a designed experiment.
None of the instruments gave accurate, robust NOx measurement in the presence of high levels of NH3.
|Technical Paper||Measuring NOx in the Presence of Ammonia|
|Technical Paper||Wall-scale Reaction Models in Diesel Particulate Filters|
|Technical Paper||Ceria Doped Ba-Alumina Oxides for Durable NOx-Storage Catalysts Efficient at Low Temperature|
- John Hoard - Ford Motor Company Research and Advanced Engineering
- Rachel Snow - Ford Motor Company Research and Advanced Engineering
- Lifeng Xu - Ford Motor Company Research and Advanced Engineering
- Christine Gierczak - Ford Motor Company Research and Advanced Engineering
- Robert Hammerle - Ford Motor Company Research and Advanced Engineering
- Cliff Montreuil - Ford Motor Company Research and Advanced Engineering
- S. Iskander Farooq - Ford Motor Company Research and Advanced Engineering
CitationHoard, J., Snow, R., Xu, L., Gierczak, C. et al., "NOx Measurement Errors in Ammonia-Containing Exhaust," SAE Technical Paper 2007-01-0330, 2007, https://doi.org/10.4271/2007-01-0330.
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