Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1280401 | International Journal of Hydrogen Energy | 2006 | 19 Pages |
The chemistry of nitrogen species and the formation of NOxNOx in hydrogen combustion are analyzed here on the basis of a large set of experimental measurements.The detailed kinetic scheme of H2/O2H2/O2 combustion was updated and upgraded using new kinetic and thermodynamic measurements, and was validated over a wide range of temperatures, pressures and equivalence ratios. The mechanism's performance at high pressures was greatly improved in particular by adopting higher rate parameters for the H+OH+M=H2OH+OH+M=H2O reaction.The NOxNOx sub-mechanism was further validated and updated. The kinetic parameters of the NO2+H2=HONO+HNO2+H2=HONO+H and N2H2+NO=N2O+NH2N2H2+NO=N2O+NH2 reactions were updated in order to improve model predictions in specific conditions.Sensitivity analyses were carried out to determine which reactions dominate the H2/O2H2/O2 and H2/NOxH2/NOx systems at particular operating conditions.Good overall agreement was observed between the model and the wide range of experiments simulated.