B-15 超小型ガスタービン用アニュラー型燃焼器の基礎燃焼特性(燃焼・燃焼器II,一般講演)

概要

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Two burners with a simple structure that the primary air was tangentially supplied from the combustor liner were built for a propane-fueled annular-type combustor of a several hundreds W-class micro gas turbines. One type had an orifice in the combustion chamber and another had a step on the liner wall for flame holding. The flame stability limit, flame shape and combustion efficiency were measured at an inlet air temperature of 200[℃] and atmospheric pressure. A homogeneous premixed flame was formed in the burner with the orifice. The flame was stable in the range of the equivalence ratio from 0.6 to 0.8 and the length was sufficiently short at the air flow rate of the design point. The combustion efficiency was around 99.9[%] at the equivalence ratio of 0.7. However, the combustion characteristics of the burner with the step were insufficient.
2006-10-01