Premixed carbon monoxide–nitrous oxide–hydrogen flames: measured and calculated burning velocities with and without Fe(CO)5

摘要: Abstract The burning velocity of premixed carbon monoxide–nitrous oxide flames (background water levels 5 to 15 ppm) has been determined experimentally for a range fuel–oxidizer equivalence ratio φ from 0.6 3.0, with added nitrogen up mole fraction X N 2 = 0.25, and hydrogen H 0.005. Numerical modeling the based on recently developed kinetic mechanism predicts reasonably well, indicates that direct reaction CO O is most important consumption values ≤ 0.0014. calculations show background level 10 ppm increases by only about 1% compared bone-dry case. Addition iron pentacarbonyl, Fe(CO) , powerful flame inhibitor in hydrocarbon–air flames, CO–N significantly. promotion believed be due iron-catalyzed gas-phase CO, via + M MO M, where Fe, FeO, or FeOH.