B214 水素-炭化水素-空気混合気の乱流燃焼速度整理式に関する実験的研究(OS9 熱・流動)

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  • B214 An Experimental Study of Modeling Turbulent Burning Velocity for Hydrogen-Hydrocarbon-Air Mixtures

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In order to establish a model of the turbulent burning velocity of multi-component fuel mixtures, the turbulent burning velocity S_T of hydrogen added hydrocarbon-air mixtures with a wide range of equivalence ratio and hydrogen additional rate was examined, where methane and propane are adopted as hydrocarbon. S_T normalized by the laminar burning velocity S_<L0> at the same turbulent intensity u' normalized by S_<L0> was found to tend to increase with adding hydrogen to methane-air mixtures, however S_T for richer propane mixtures deceases with adding hydrogen. The increase of S_T/S_<L0> with hydrogen additions for lean methane mixtures was larger than that for rich mixtures. Additionally, a model of turbulent burning velocity proposed for single-component fuel mixtures in our previous study may be applied to two-component fuel-air mixtures by considering the estimated mean local burning velocities.

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