A mixture fraction analysis is performed to investigate the characteristics of time-averaged gaseous species measurements made along the centerline of medium-scale pool fires steadily burning in a quiescent environment. A series of fire experiments are conducted using 30 cm diameter liquid and 37 cm diameter gas pool burners. All gaseous species measurements are extracted at various heights within the fire and analyzed using an Agilent 5977E Series Gas Chromatograph with mass selectivity and thermal conductivity detectors. Soot mass fractions are simultaneously measured during gas sampling. For all fuels, the results show that the local composition plotted as a function of mixture fraction collapses the experimental data into a few coherent lines that nearly match the idealized reactions. Differences between the theoretical and experimental data are attributed to the presence of carbon monoxide, soot, and other intermediate carbon-containing species. The ratio of carbon monoxide and soot is presented as a function of mixture fraction in which a trend is observed.

进行混合分数分析，以研究在静止环境中稳定燃烧的中等规模水池火灾中心线的时间平均气态物质测量的特征。使用直径30厘米的液体和直径37厘米的气池燃烧器进行了一系列燃烧实验。所有气体种类的测量值都在火中的不同高度处提取，并使用带有质量选择性和热导检测器的Agilent 5977E系列气相色谱仪进行分析。在气体采样期间同时测量烟尘质量分数。对于所有燃料，结果表明，作为混合物分数的函数绘制的局部组成将实验数据分解为几条连贯的线，几乎与理想化反应相匹配。理论和实验数据之间的差异归因于一氧化碳，烟灰和其他中间含碳物质的存在。一氧化碳和烟灰的比例是混合物中观察到趋势的比例。