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

Goyal, G and Paul, PJ and Mukunda, HS (1992) Computational studies on one-dimensional laminar, premixed hydrogen-nitric oxide flames. In: Combustion and Flame, 88 (1). pp. 28-36.

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Abstract

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 $H_2-NO$ kinetics, the most sensitive reaction being the HNO decomposition reaction. Reactions involving N2O 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 ($O_2, O, H_2, H, OH, H_2O, N_2, N, NO, HNO)$ and ten reversible reactions established here predicts flame speeds of $H_2-NO$ 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.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science Inc.
Keywords: Computational studies;one-dimensional laminar;premixed hydrogen;nitric oxide flames
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 26 Mar 2008
Last Modified: 19 Sep 2010 04:43
URI: http://eprints.iisc.ernet.in/id/eprint/13489

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