IGTC-56 The Influence of Fuel Placement on NO_x Emissions From Flames Stabilized by Radial Swirlers at Gas Turbine Primary Zone Conditions(Session C-5 EMISSION II)

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概要

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• A 140mm diameter atmospheric pressure low NO_x combustor primary zone was developed with a Mach number simulation of 43% of the combustor air flow into the primary zone through a curved blade radial swirler. Three modes of fuel injection were compared: central radial outward, radial swirler passage injection and peripheral radial inward injection at the swirler outlet plane. Most of the results were obtained for propane but the central injection results were repeated for natural gas. The central fuel injection produced low NO_x emissions, but with swirler vane passage injection the upstream mixing in the passages resulted in ultra low NO_x emissions, as did the peripheral fuel injection. Radial gas composition measurements showed that the flame stability and NO_x emissions were controlled by differences in local mixing at the base of the swirling shear layer downstream of the swirler outlet. For radial passage fuel injection and peripheral injection at the swirler outlet, the potential for a dry solution to the NO_x emissions problem of gas turbines was demonstrated, without incurring the flame stability problem of fully premixed systems.

• 公益社団法人日本ガスタービン学会の論文

著者

• Andrews G.

  Department Of Fuel And Energy The University Of Leeds

• Alkabie H.

  Department of Fuel and Energy The University of Leeds

関連論文

• IGTC-49 Counter Rotating Double Axial Swirlers with Fuel Injection in the Counter Swirl Shear Layer(Session C-2 COMBUSTORS II)
• IGTC-56 The Influence of Fuel Placement on NO_x Emissions From Flames Stabilized by Radial Swirlers at Gas Turbine Primary Zone Conditions(Session C-5 EMISSION II)

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