分岐形燃焼器に関する研究 : 火炎形状と火炎安定性

概要

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An advanced diffusion combustor combinig branced air nozzles and branched fuel nozzles is proposed. This type of combustor is expected to be more effective for improvig fuel/air mixing in the combustion chamber than a single-hole air-nozzle diffusion combustor. In this study, nozzle diameter is kept constant, while the angles of fuel nozzles are varied. Three kinds of combustors having fuel nozzle angles of 30゜,45゜and 60゜are used. For each combustor, deviation angle between air and fuel nozzles is set to be 0゜,15゜and 45゜, respectively. The results show that the optimum flamestability is obtained for a fuel/air nozzle deviation angle of 45゜and it is unrelated to fuel nozzle angle. Furthermore, flame stability limits are much higher than those of coaxial burners.
社団法人日本機械学会の論文
1996-03-25