Development of a NOx Chemistry Module for EDMS/AEDT to Predict NO2 Concentrations (2017) / Chapter Skim
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3 Focus on Short‐term NO2 Concentrations The focus of the ACRP 02‐43 Research is primarily on modeling short‐term (i.e., one hour) NO2 concentrations – commensurate with the promulgation of the new NAAQS for this pollutant. Reasonable Accuracy - The Preferred Method should be as accurate as possible and produce results that are comparable to other similar modeling applications.
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4 NO, NO2, and total NOx emissions testing reveals that these NOx emission rates for aircraft engines agree reasonably well with the ICAO values, although the actual thrust values used can greatly affect the NO2/NOx ratios. For example, seven percent thrust usually overestimates actual ground-idle thrust and 100 percent thrust usually overestimates actual takeoff thrust.
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5 2.3 Plume Chemistry In basic terms, NOx (i.e., NO and NO2) is formed during fuel combustion mainly as a result of the thermal oxidation of atmospheric nitrogen (N2)
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