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Dimensionally reduced modeling of nitric oxide formation for premixed methane-air flames with ammonia content

机译:含氨量预混合甲烷-空气火焰中一氧化氮形成的降维模型

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The paper presented an experimental and numerical study on a combustion process of ammonia doped methane flames with the NH3 content in the fuel from 1% up to 5%. Tests were performed with an atmospheric pressure axisymmetric burner for stoichiometric mixtures and fuel-lean conditions (phi = 0.63, 0.71, 0.83, 1.0) with the substrates preheating up to 573 K. Numerical modelling involved three reduced dimensionally combustion models (0D IdealGasReactor, 1D FreeFlame, 1D BurnerFlame) with four detailed reaction mechanisms for the hydrocarbons and nitrogen chemistry (GRI 3.0, SanDiego, Konnov 0.6 and Tian). Comparison of the 0D/1D calculations results with a complete burner geometry modelling (3D Ansys EDC) was performed for GRI 3.0.
机译:本文对掺氨甲烷火焰的燃烧过程进行了实验和数值研究,其中燃料中的NH3含量从1%到5%。使用大气压轴对称燃烧器对化学计量的混合物和稀燃条件(phi = 0.63,0.71,0.83,1.0)进行了测试,基材预热到573K。数值模型涉及三个缩小尺寸的燃烧模型(0D IdealGasReactor,1D FreeFlame,1D BurnerFlame),具有烃和氮化学的四种详细反应机理(GRI 3.0,SanDiego,Konnov 0.6和Tian)。使用GRI 3.0对完整的燃烧器几何模型(3D Ansys EDC)进行了0D / 1D计算结果的比较。

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