On the Formation of Nitrogen Oxides During the Combustion of ...

2 Combustion Theory
Temperature T
3000
K
Temperature
NO mass fraction
0.6 x 10 −6
NO 2 mass fraction
N 2 O mass fraction
2000
0.4 x 10 −6
1000
0.2 x 10 −6
0
0.000 0.004 0.008 0.012 0.016
0.0 x 10 −6
0.020 m
Spatial coordinate x
1
Mass fraction of NO YNO x 1000
Mass fraction of NO2 and N2O YNO2 , Y N2O
Figure 2.10: Temperature Profile and Mass Fractions of the Oxides of Nitrogen over a Laminar
Premixed Flame of Methane. Results are shown for the GRI 3.0 mechanism
and an equivalence ratio of φ= 0.8 (note the scaling factors for Y NO ).
Temperature T
3000
K
Temperature
NO mass fraction
NO 2 mass fraction
0.6 x 10 −6
N 2 O mass fraction
2000
0.4 x 10 −6
1000
0.2 x 10 −6
0
0.000 0.004 0.008 0.012 0.016
0.0 x 10 −6
0.020 m
Spatial coordinate x
1
Mass fraction of NO YNO x 1000
Mass fraction of NO2 and N2O YNO2 , Y N2O
Figure 2.11: Temperature Profile and Mass Fractions of the Oxides of Nitrogen over a Laminar
Premixed Flame of n-Decane. Here, results of the combination “n-Decane
(Princeton) + NO x (Li)” are shown for an equivalence ratio of φ= 0.8.
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