Combustion using silicon carbide coated, carbon–carbon composite porous inert media (PIM) was investigated. Two combustion modes, surface and interior, depending upon the location of flame stabilization, were considered. Combustion performance was evaluated by measurements of pressure drop across the PIM, emissions of NOx and CO, and the lean blow-off limit. Data were obtained for the two combustion modes at identical conditions for a range of reactant flowrates, equivalence ratios, and pore sizes of the PIM. Results affirm PIM combustion as an effective method to extend the blow-off limit in lean premixed combustion.

Issue Section:
Gas Turbines: Combustion and Fuel
Keywords:
gas turbines, combustion, silicon compounds, porous materials, composite materials, air pollution control, pressure measurement
Topics:
Combustion, Emissions, Nitrogen oxides, Flames
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