274 バイオガス対応マイクロガスタービン用燃焼器における燃焼振動の特性(圧力脈動・燃焼振動のメカニズム,OS-22 流体関連振動・音響メカニズムと計測制御,総合テーマ「伝統を,未来へ!」)

概要

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In this study, the combustion oscillation model which includes effects of various fuel components is presented. The model is based on ignition-delay model, which is proposed by Z. M. Ibrahim, but didn't consider the effect of fuel components to ignition-delay time. So, we evaluated the ignition-delay time by using CHEMKIN and considered the effects of various fuel components. As a result, H_2 tends to cause unstable thermo acoustic oscillations. And incombustible components, such as CO_2 and N_2 tend to suppress the combustion oscillation. In addition, we investigated the effect of 2-staged combustion and swirl number in MGT combustor.
2010-09-14