Modelling ignition characteristics of rich H2/O2 mixture in a monolithic catalytic reactorIgnition 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.
Document ID
19880059272
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tien, Ta-Ching (Case Western Reserve Univ. Cleveland, OH, United States)
T'Ien, James S. (Case Western Reserve University Cleveland, OH, United States)