P32-04 UMGT 用極超小型燃焼器の試作

概要

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This paper considered combustion characteristics in a small volume and clarifies the problems which play remarkable roles on a small combustor at micro scale, such as the quenching distance, heat loss, the shortened diffusion characteristic time and flow laminarization. Based on this discussion that indicates that Flat-Flame combustion is the most feasible style for UMGT micro-combustors, a prototype of a Flat-Flame micro-combustor, fueled by hydrogen, was tested. The experiment to evaluate the characteristics of this prototype showed that adoption of Flat-Flame combustion style enabled stable flames in a micro-combustor on UMGT scale, the flame stability region was quite wide and satisfied optimum operation region in both terms of air and fuel mass flow rate, and flame stability limits were mostly governed by the heat losses to the porous plate and nozzle.
社団法人日本機械学会の論文
2002-06-14