The effect of hydrogen addition on silica growth in burner-stabilized methane/air flames with trace amounts of hexamethyldisiloxane are reported. Profiles of the aggregates' radius of gyration $R_g$ and monomer radius $a$ versus residence time were measured by laser light scattering. Experiments were performed at equivalence ratios of 0.8, 1.0 and 1.3, with mole fractions of 0–0.4 of hydrogen in the fuel. At equal mass flux, the addition of hydrogen was found to result in decreasing $R_g$ and $a$. However, keeping the flame temperature rather than the mass flux constant upon hydrogen addition resulted in the same measured profiles.

中文翻译：

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加氢对六甲基二硅氧烷混合物在大气压，1-D甲烷/空气火焰中二氧化硅聚集体生长的影响

据报道，在添加痕量六甲基二硅氧烷的燃烧器稳定的甲烷/空气火焰中，加氢对二氧化硅生长的影响。骨料回转半径的轮廓${\mathrm{[R}}_G$ 和单体半径 $\mathrm{一个}$相对于停留时间的变化通过激光散射来测量。实验以当量比为0.8、1.0和1.3进行，燃料中氢的摩尔分数为0-0.4。在等质量通量下，发现氢的添加导致了氢的减少${\mathrm{[R}}_G$ 和 $\mathrm{一个}$。但是，在添加氢气时保持火焰温度而不是质量通量恒定会导致相同的测量曲线。