A study on premixed turbulent combustion of hydrogen including hydrocarbon
A study on premixed turbulent combustion of hydrogen including hydrocarbon
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DOI：
10.2514/6.2003-4638
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发表时间：
2003-07
期刊：
影响因子：
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通讯作者：
H. Kido;M. Nakahara;K. Nakashima
中科院分区：
文献类型：
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作者：
H. Kido;M. Nakahara;K. Nakashima
为了明确含烃氢混合物作为多组分燃料混合物的湍流燃烧速度，在保持层流燃烧速度近似恒定的情况下，制备了贫烃和富烃（甲烷和丙烷）加氢混合物作为双组分燃料混合物。在相同的湍流强度下，不同的碳氢化合物附加速率、当量比和碳氢化合物种类，所测得的湍流燃烧速度有明显的差异，即使层流燃烧速度也大致相同。贫混合物的燃烧速度随添加速率的变化几乎单调变化，而富混合物的燃烧速度则没有这种趋势。这种趋势可以定性地解释基于平均局部燃烧速度，这是估计考虑到优先扩散效应的每种燃料成分。此外，通过考虑每种燃料的局部平均燃烧速度的估计，所提出的单组分燃料混合物湍流燃烧速度模型可以应用于添加烃的贫氢混合物。
In order to clarify the turbulent burning velocity of hydrogen mixtures including hydrocarbons as a multicomponent fuel mixture, both lean and rich hydrocarbon(methane and propane)-added hydrogen mixtures as two-component fuel mixtures were prepared while maintaining the laminar burning velocity approximately constant. A distinct difference in the measured turbulent burning velocity at the same turbulence intensity is observed depending on the additional rate of hydrocarbon, the equivalence ratio and the kind of hydrocarbon, even the laminar burning velocities are approximately the same. The burning velocities of lean mixtures change almost monotonously as the rate of addition changes, whereas the burning velocities of the rich mixtures show no such tendency. This trend can be explained qualitatively based on the mean local burning velocity, which is estimated by taking into account the preferential diffusion effect for each fuel component. In addition, a model of turbulent burning velocity proposed for single-component fuel mixtures can be applied to hydrocarbon-added lean hydrogen mixtures by considering the estimated mean local burning velocity of each fuel.