燃料ガス噴流の着火に関する研究 : 第2報, 諸因子の影響

概要

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The spontaneous ignition of gaseous fuel injected perpendicular to a steady hot air stream was studied at atmospheric pressure. Ethylene and hydrogen were used as fuel. Ignition delay was measured by detecting ultraviolet radiation of OH radicals. Ignition delay curves in the Arrhenius coordinate indicated straight lines of large gradient in the low-temperature region, but their gradient became gradually smaller with the increase of the temperature. In order to examine the cause of this bending of the ignition delay line, changes were made in the physical processes of ignition phenomena such as mixing or diffusion, so that the effect on ignition delay could be experimentally investigated. As a result, it was revealed that the ignition delay behavior indicated by a straight line in the low-temperature region is controlled by chemical processes, and the behavior indicated by a small-gradient line in the high-temperature region is controlled by physical processes.
一般社団法人日本機械学会の論文
1992-12-25