外周二次噴射ノズル群を用いた振動燃焼火炎の安定化(熱工学,内燃機関,動力など)

概要

論文の詳細を見る
Stabilization of oscillatory flames caused by strong pressure and best release fluctuations has been investigated for a methane/air mixture, and effects of secondary injection system on suppressing pressure and heat release fluctuations have been discussed. Furthermore, characteristics of the NO_x emissions have been also discussed. Especially, in this study, outer secondary injection nozzle array which is arranged around a swirl-type flame holder is provided to stabilize the oscillatory flame. Methane, hydrogen and air are used for a working mixture of the secondary, respectively. Results show that with appreciate flow rate condition of the secondary injection; (1) the oscillatory flame is stabilized with the outer secondary jets, where the configuration of secondary nozzle array is optimized, (2) the outer secondary injection has a performance to reduce the pressure fluctuation despite the kind of injected gas as the secondary, and (3) air injection as the secondary is more effective to suppress the pressure oscillation and NO_x emissions due to the momentum effect.
一般社団法人日本機械学会の論文
2006-12-25