IGTC-49 Counter Rotating Double Axial Swirlers with Fuel Injection in the Counter Swirl Shear Layer(Session C-2 COMBUSTORS II)

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概要

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• Counter rotating swirlers were investigated with fuel injection into the annular shear layer separating the two swirling flows. The influence on NO_x emissions of the dump expansion ratio, D/d, from the swirler outer diameter, d, to the combustor diameter D was studied. Two methods of varying this were studied, increasing the combustor diameter, D, and inserting a shroud downstream of the swirler so as to reduce d at constant D. This shrouded swirler produced a marked reduction in the NO_x emissions, which was shown using internal gas composition measurements to be due to improved fuel and air mixing. Large reductions in NO_x emissions were also found for the larger expansion ratio of 1.8 with the larger combustor. The reduced flame stability showed that this NO_x reduction was also due to the improved fuel and air mixing.

• 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

• Amin E.

  Department of Fuel and Energy The University of Leeds

• Ahmad N.

  Department of Mechanical Engineering The University of Science and Technology Irbid

• Kowkabi M.

  Ruston Gas Turbines

• Ahmad N.

  Department Of Crop Physiology University Of Agriculture

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)
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