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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimir: 2150-766X
ISSN En Línea: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.80
pages 58-69

Gas-Phase Reaction Mechanisms for Nitramine Combustion: On the Development of a Comprehensive Reaction Mechanism for Hydrogen/Nitrous Oxide Kinetics

Richard A. Yetter
The Pennsylvania State University, University Park, Pennsylvania 16802, USA
Mark T. Allen
SciTec, Inc., Princeton, NJ, USA
Frederick L. Dryer
Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544

SINOPSIS

As part of a research effort to develop comprehensive gas-phase reaction mechanisms for nitramine combustion, the present paper reports on recent sub-model development of H2/N2O kinetics. A single reaction mechanism, based on literature thermochemical and kinetic data and developed from intermediate temperature flow reactor studies, is tested against previous high temperature shock tube data, low temperature static bulb reactor data, and laminar premixed flame speed data. Model predictions are found to be in good agreement with the shock tube and flow reactor data, but too fast when compared against the bulb data. In addition, predicted flame speeds are found to be ∼ 15% lower than those measured experimentally. The present results further indicate the importance of the branching channels of the H + N2O reaction over the entire temperature range as well as secondary reactions involving NH, and suggest that, at high temperatures, the rate constant for the direct reaction of CO + N2O is lower than predicted from extrapolation of previous evaluations.