A-2 "LL2燃焼"による液体燃料焚き燃焼器の超低NOx作動範囲拡大の実現(燃焼・燃焼器I,一般講演)

概要

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The lean-lean two-stage (LL2) combustion concept using the reactions of lean to ultra-lean premixed mixtures injected into the hot burned gas produced in the lean-burn primary stage has the potential to extend the ultra-low NOx operating range of gas turbines. A tubular model combustor for a simple cycle 200 kW gas turbine was designed based on this concept. Two secondary mixture injection tubes with a flow deflector at the exit, extending into the primary combustion zone, were used to inject lean premixed prevaporized kerosene-air mixtures of various fuel concentrations into a mass of hot burned gas produced by the lean burn primary burners. The emissions and combustion characteristics were evaluated at the full power conditions of the gas turbine, at 600 K inlet air temperature and 0.8 MPa pressure, for two sizes of mixture injection tubes.
社団法人日本ガスタービン学会の論文
2004-10-01