超希薄混合ガスの熱循環法による燃焼に関する実験的研究

概要

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An experimental study was carried out on the combustion of ultralean-fuel/air mixture by preheating the mixture by means of a heat recirculating burner. The combustion chamber of the burner was made of transparent glass to allow the observation of flame appearences. A laminar, continuous flame was stabilized in the combustion chamber. The conclusions obtained are as follows : (1) Almost completely burned gas is produced with a negligibly small amount of nitrogen oxide. (2) If the combustion of the mixture is incomplete in the combustion chamber and the residual of the mixture burns secondarily in the inner cylinder, the temperatures of the preheated mixture and the flame drop leading to inferiority of the burner performance. (3) The flame blows off prior to the approach to the proper limit of flammability for the preheated mixture, so that the flame stabilization in the combustion chamber is important since the mixture at the blow-off limit is still flammable.
一般社団法人日本機械学会の論文
1988-09-25