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Modelling ignition characteristics of rich H2/O2 mixture in a monolithic catalytic reactor (1988)

T'Ien, James S. ; Tien, Ta-Ching

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Publication Date: 2019-06-28

Description: Ignition of rich hydrogen-oxygen mixture in a monolithic catalytic reactor is studied using a transient combustion model. The model assumes a quasi-steady gas phase and a thermally-thin substrate. The ignition time lag is due to the thermal inertia of the substrate. One-step global chemical reaction is assumed both on the surface and in the gas phase. An effectiveness factor is introduced to account for the transition from a kinetically-limited catalytic surface reaction to a diffusion-limit one during ignition. Results presented include a catalytic ignition boundary, ignition delay time and the transient response in the catalytic bed.

Keywords: INORGANIC AND PHYSICAL CHEMISTRY

Type: AIAA PAPER 88-3224

Format: text

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