Thermal NOx (Zeldovich Order-of-Magnitude)
Rough thermal-NOx formation rate from the extended Zeldovich mechanism. Doubling every ~90 K above 1800 K.
Relative NOx rate (vs 2000 K)
23.11×
Formula, assumptions, and limits
Only the dominant temperature sensitivity term. The full Zeldovich mechanism also depends on [O] and [N₂] concentrations and residence time. Use this for 'how much does retarded injection reduce NOx' order-of-magnitude comparisons.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Flame temperature | K | cycle analysis | |
| Relative rate vs 2000 K reference | × | result |