UMGT用実機型水素燃料極超小型燃焼器の燃焼特性

摘要

試作したflat-flame燃焼方式のUMGT用実機rn型極超小型水素燃料燃焼器（燃焼室：高さ1mm、rn容積69.4mm~3）は，スパークプラグで容易に着rn火可能であり，その着火および火炎安定範囲は設rn計点を満たし広範囲である．また，極めて高負荷rnな燃焼と，良好な燃焼効率を5％程度の圧力損失rn率で達成した．NOx濃度は3ppm以下と極めてrn微量であった．%An engineering-model of hydrogen-fueled flat-flame ultra-micro combustor with a combustion chamber volume of 69.4 mm3 was developed. The burning test of the combustor showed that it was easy to ignite and burn with a stable flame. Both the stable flame region and the ignition limit were enough wide to satisfy the design operation point of the combustor. The engineering-model combustor attained high combustion efficiency with a pressure loss around 5%. NO_x emissions were extremely low of less than 3 ppm.