E212 旋回流希薄予混合火炎のレーリー散乱・LIF同時計測(OS9 熱・流動(計測・試験))

概要

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In heavy-duty gas-turbine engines, one of the most promising approaches for gaseous fuel to reduce NOx emissions is the adoption of lean premixed combustion. But, practically, it burned before the perfect mixing is achieved because fuel and air are separately supplied to prevent flashback. This might cause inhomogeneous burning velocity distributions and induce instability of the flame position. So, it is necessary to mix fuel and air sufficiently and homogeneously before it burns. In this study, we presented the simultaneous measurements of 2-D mixing behavior and temperature distributions by combining acetone LIF and Rayleigh scattering methods, and investigated the relationship between fuel concentration and temperature in the flames. We clarified the flame characteristics by simultaneous measurements of OH-LIF and Rayleigh scattering
一般社団法人日本機械学会の論文
2011-06-22