Computational studies on one-dimensional laminar, premixed hydrogennitric oxide flames

✍ Scribed by G. Goyal; P.J. Paul; H.S. Mukunda

• Book ID: 103037636
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 630 KB
• Volume: 88
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(92)90004-9

✦ Synopsis

Results of computational studies of adiabatic flame propagation in the hyperogen-nitric oxide system are presented here. The sensitivity of flame speed to the rate constants of various reactions is examined. Reactions of the extended Zeldovich mechanism H + NO = N + OH and N + NO = O + N 2 are the major NO removal reactions at high temperatures. Studies show that the flame speed is extremely sensitive to the rate constant of the reaction H + NO = N + OH. The reactions involving HNO are found to be important in H2-NO kinetics, the most sensitive reaction being the HNO decomposition reaction. Reactions involving N20 make insignificant change in flame speed (less than 0.5%) at all conditions and can be deleted from the reaction set. A mechanism involving ten species (02, O, H 2 , H, OH, H20 , N2, N, NO, HNO) and ten reversible reactions established here predicts flame speeds of H2-NO system at various conditions of equivalence ratio, initial temperature, and pressure. Results are in good agreement with the experimental results of Magnus, Chintapalli, and Vanpee.