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首页> 外文会议>AIAA Aerospace Sciences Meeting;AIAA SciTech Forum >Investigation of Combustion Emissions from Conventional and Alternative Aviation Fuels in a Well-Stirred Reactor
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Investigation of Combustion Emissions from Conventional and Alternative Aviation Fuels in a Well-Stirred Reactor

机译：搅拌良好的反应堆中常规和替代航空燃料的燃烧排放调查

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Emissions, lean blow off (LBO) and combustion efficiency are investigated in a well stirred reactor (WSR) burning conventional, alternative, and surrogate aviation fuels. Four fuels from the National Jet Fuel Combustion Program (A-2, A-3, C-1, and C-5) along with five surrogate mixtures are investigated while approaching LBO for the use of assessing chemical kinetics mechanisms, quantifying combustion stability, and studying hazardous air pollutants (HAPs). Combustion emissions and LBO are measured at pressures of 1 atm and reactor temepratures of 1350-1550 K. An online high speed 5-Hz Fourier-Transform Infrared (FTIR) gas analyzer paired with an offline gas chromatography with flame ionization detection (GC-FID) (via gas bag samples and charcoal tube samples) are used to quantify combustion emissions and C1 to C12 hydrocarbon species at fuel/air equivalence ratios from 0.48 to LBO. The surrogate mixtures were formulated to gain insight into the effects of chemical structure of the fuel on emissions and LBO. The conventional and alternative fuels were selected because they have a wide range of physical and chemical properties that might be expected in future aviation fuels. A strong correlation is obtained between derived cetane number and LBO for all fuels and, to a lesser extent, between radical index and LBO.
机译：在燃烧常规，替代和替代航空燃料的搅拌良好的反应堆（WSR）中研究了排放，稀薄排放（LBO）和燃烧效率。在接近LBO时，对来自国家喷气燃料燃烧计划的四种燃料（A-2，A-3，C-1和C-5）以及五种替代混合物进行了研究，以用于评估化学动力学机制，量化燃烧稳定性，并研究有害空气污染物（HAP）。在1 atm的压力和1350-1550 K的反应堆温度下测量燃烧排放和LBO。在线高速5 Hz傅里叶变换红外（FTIR）气体分析仪与离线式气相色谱仪结合使用，具有火焰离子化检测功能（GC-FID） ）（通过气袋样品和木炭管样品）用于量化燃烧排放量以及在0.48到LBO的燃料/空气当量比下的C1到C12碳氢化合物。配制替代混合物是为了深入了解燃料的化学结构对排放和LBO的影响。选择常规燃料和替代燃料是因为它们具有广泛的物理和化学特性，这在未来的航空燃料中是可以预期的。在所有燃料的十六烷值与LBO之间，以及在较小程度上，在自由基指数与LBO之间，都获得了很强的相关性。

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