メタン・アンモニア混合燃料を用いた微小拡散火炎の火炎構造に関する検討

抄録

A deeper understanding of the combustion characteristics of ammonia, a carbon-free fuel of which use is expected to increase, is needed from the viewpoint of fire prevention. In the present research, as fundamental research on diffusion flame of methane-ammonia blended fuel, the flame structure was investigated from the luminance distribution of chemiluminescence from methane and ammonia in a diffusion microflame of methane-ammonia blended fuel. As a result, it was observed that the luminescence peak from ammonia was closer to the fuel side than that from methane and that both methane and ammonia peaks moved to the air side as the flow rate of ammonia addition increased. The flames with ammonia addition tended to be lifted and blow off at a lower flow rate than those with nitrogen addition.