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Interpreting Remote Sensing NOx Measurements: at Low Load near Chicago 1997-1999, and at High and Low Load Sites on the Same Ramp in Phoenix, 1999
Technical Paper
2001-01-3640
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Spring Fuels & Lubricants Meeting & Exhibition
SAE International Fall Fuels & Lubricants Meeting & Exhibition
Language:
English
Abstract
Remote sensing nitric oxide (NO) measurements are difficult to analyze because load varies among on-road vehicles measured by remote sensing and NO emissions are dependent on load. Remote sensing NO measurements were made on passenger cars in 1997, 1998, and 1999 in Chicago, IL at a site where few vehicles had loads greater than those encountered in the FTP. Passenger car NO emissions could be modeled by an equation with an age term and a load term for measurements made under moderate load. Onset of decreasing NO emissions with increasing load was observed to occur at lower load for older technology vehicles. Light duty vehicles were measured by remote sensing at two sites on the same ramp in Phoenix, AZ. A large proportion of the vehicles at one of the sites was under loads far in excess of those experienced in the FTP. NO could not be characterized by a single valued function of age and load for both Phoenix sites even though the fleet at the two sites was very similar. Reasons for this are discussed.
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Authors
Citation
Slott, R., Pokharel, S., and Stedman, D., "Interpreting Remote Sensing NOx Measurements: at Low Load near Chicago 1997-1999, and at High and Low Load Sites on the Same Ramp in Phoenix, 1999," SAE Technical Paper 2001-01-3640, 2001, https://doi.org/10.4271/2001-01-3640.Also In
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