A-14 超小型希薄予混合プロパン燃焼器の排気特性(燃焼・燃焼器IV,一般講演)

概要

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For the purpose to develop a propane-fueled micro combustor for an 180W output micro gas turbine with high combustion efficiency and low NOx emission, a lean premixed swirl combustor of 20mm diameter was build. A partially premixed pilot flame was set up on the center axis to stabilize a lean premixed flame. Flame stability limits, temperature distributions and exhaust emissions were measured by varying the following parameters; overall equivalence ratio and mean injection velocity of pilot premixture. The flame stability in the combustor was enough wide to satisfy the design operative region of the equivalence ratio at the air flow rate. Although a large recirculation zone was formed in the combustor, the unreacted premixture passed through outside of the zone. Combustion efficiency achieved up to 95% at the equivalence rations of 0.3〜0.5.
社団法人日本ガスタービン学会の論文
2004-10-01