混合円筒のある二次元拡散炎バーナ

概要

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The burner with a mixing roll at an end of partition wall between fuel gas and air supplying ports was used. The fuel gas was flowing along the side wall of the burner, and air was supplying parallel to the fuel gas. The fuel gas was diffused to the air quickly by the existence of the mixing-roll. A diffusion flame in this burner was stabilized on a wake of the roll. The burning mechanism in this burner was determined. The flames have different shapes which were stabilized at each fixed flow situations. The fuel gases were sucked into the air flow as soon as flowed out the fuel port, and reacted soon, in case of the turbulent flame. A turbulence intensity of the flow was increased by the existence of flame, so that eddy diffusions acted much more rapidly than the flow that is under the same conditions without flame. The diffusion velocity could be so high by the mixing roll that the burning rate of this burner were determined by burning velocity of fuel-air mixture only under a certain conditions.
一般社団法人日本機械学会の論文
1963-11-25