NOx Measurement Errors in Ammonia-Containing Exhaust

2007-01-0330

04/16/2007

Event
SAE World Congress & Exhibition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2007-01-0330
Pages
14
Citation
Hoard, 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.
Additional Details
Publisher
Published
Apr 16, 2007
Product Code
2007-01-0330
Content Type
Technical Paper
Language
English