A-6 ESPRプロジェクトにおける超低NOx燃焼器用プレミキサーの開発(燃焼・燃焼器II,一般講演)

概要

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This paper describes the development of LPP premixers for the main combustion zone of the ESPR stepped dome dual annular combustor. Single sector combustor tests showed that one of the premixers, which was provided with counter-rotational swirl vanes at the inlet, was capable of achieving the targeted NOx emissions less than 5 El at simulated cruise conditions of the target engine. It was confirmed that the premixer was free from flashback and auto-ignition at inlet air temperatures and pressures higher than those at simulated cruise conditions. PIV measurements of isothermal flow fields in the downstream of the premixer exit revealed that no recirculation zones were formed even in the region along the centerline of the premixer while maintaining swirl in the peripheral zone.
社団法人日本ガスタービン学会の論文
2004-10-01