Catalytic Ignition and Extinction of Hydrogen-Air Mixtures on Platinum Surfaces with Detailed Kinetics and Transport
Abstract:Surface ignition and extinction of very fuel-lean hydrogen-air mixtures on platinum surfaces were modeled using a detailed surface kinetic mechanism and transport phenomena. A stagnationpoint flow geometry was employed to study the effect of heat flux, flow velocity, and composition on the surface ignition and extinction. The temperature and concentration on platinum surfaces as well as the coverage of surface species were also explored to evaluate the role of gas-phase chemistry. It was shown that the platinu… Show more
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