Title: Catalytic Combustion of Hydrogen/Air Mixture Inside Micro-Tube
Abstract:Catalytic combustion of hydrogen/air mixture inside a micro-tube was numerically investigated by using the FLUENT coupled with the CHEMKIN and detailed chemical reaction mechanisms. The combustion cha...Catalytic combustion of hydrogen/air mixture inside a micro-tube was numerically investigated by using the FLUENT coupled with the CHEMKIN and detailed chemical reaction mechanisms. The combustion characteristics of different reaction models and the influence of inlet velocity and tube diameters on surface catalytic combustion reaction were discussed. The computational results indicate that surface catalytic combustion restrains gas phase combustion. Inlet velocity and tube diameters have important influence on catalytic combustion of hydrogen. For smaller inlet velocities,reaction is dominated by gas phase combustion. As the inlet velocity increases,there exist both surface catalytic combustion and gas phase combustion. For bigger inlet velocities,reaction is dominated by surface catalytic combustion. The temperature of flame core decreases with the decrease of tube diameter. Some theoretical evidence is provided for the application of catalytic combustion to micro-electromechanical system(MEMS)and extension of combustion limits.Read More
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 2
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