IGTC-49 Counter-Rotating Radial Swirlers for Low NO_x Emissions with Air-Staging(Session B-7 COMBUSTION II)

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概要

• 論文の詳細を見る

• The use of a counter-swirl radial swirler has been investigated at simulated gas turbine combustor primary zone low and high powers. Different air flow restrictions were used that provided different levels of air flow to the upstream and downstream radial swirlers. For one configuration encorporating restrictions to the upstream and downstream swirler different fuel injection modes were also investigated ; radial vane passage and central. For the vane passage fuel injection mode the fuel was injected in either the upstream swirler passage only or both swirler passages. For the central fuel injection mode the fuel was injected either axially along the combustor centre-line or radially outwards to oppose the incoming swirling air jets. Low NO_x emissions at 1 bar of 2.4ppm, at 15% oxygen, coupled with a combustion efficiency of 99.98% were demonstrated for fuel injection into both passages. The general effect of the restrictions that transmitted differing amounts of air through the upstream and downstream swirlers was a satisfactory extension to the weak extinction limits, whilst keeping the combustion inefficiencies low. However fuel staging to the upstream radial swirler did not sufficiently extend the lean burn A/F to compensate for the increased NO_x.

• 公益社団法人日本ガスタービン学会の論文

著者

• Andrews G.e.

  Department Of Fuel And Energy Engineering University Of Leeds

• Escott N.H.

  Department of Fuel and Energy Engineering, University of Leeds

• Al-Shaikhly A.F.A.

  Department of Fuel and Energy Engineering, University of Leeds

• Al-Kabie H.S.

  Department of Fuel and Energy Engineering, University of Leeds

• Escott N.h.

  Department Of Fuel And Energy Engineering University Of Leeds

• Al-kabie H.s.

  Department Of Fuel And Energy Engineering University Of Leeds

• Al-shaikhly A.f.a.

  Department Of Fuel And Energy Engineering University Of Leeds

関連論文

• IGTC-56 Lean Primary Zones : Pressure Loss and Residence Time Influences on Combustion Performance and NO_x Emissions(Session B-4 EMISSION)
• IGTC-105 Jet Mixing Shear Layers for the Lean Combustion of Liquid Fuels with Low NO_x at Gas Turbine Primary Zone Conditions(Organized Session IV NO_x ABATEMENT COMBUSTORS)
• IGTC-9 IMPINGEMENT COOLING OF GAS TURBINE COMPONENTS(Session A-3 Heat Transfer III (Internal Surface))
• IGTC-49 Counter-Rotating Radial Swirlers for Low NO_x Emissions with Air-Staging(Session B-7 COMBUSTION II)
• IGTC-45 Counter Rotating Double Swirl Stabilised Flames(Session B-1 COMBUSTION I)

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