The work presents an experimental and kinetic modeling study of laminar premixed formic acid [HC(O)OH]/H₂/O₂/Ar flames at different equivalence ratios (φ=0.85, 1.1 and 1.3) stabilized on a flat burner at atmospheric pressure, as well as laminar flame speed of HC(O)OH/O₂/Ar flames (φ=0.5–1.5) at 1 atm. Flame structure as well as laminar flame speed were simulated using three different detailed chemical kinetic mechanisms proposed for formic acid oxidation. The components in the fuel blends show different consumption profiles, namely, hydrogen is consumed slower than formic acid. According to kinetic analysis, the reason of the observed phenomenon is that the studied flames have hydrogen as a fuel but also as an intermediate product formed from HC(O)OH decomposition. Comparison of the measured and simulated flame structure shows that all the mechanisms satisfactorily predict the mole fraction profiles of the reactants, main products, and intermediates. It is noteworthy that the mechanisms proposed by Glarborg et al., Konnov et al. and the updated AramcoMech2.0 adequately predict the spatial variations in the mole fractions of free radicals, such as H, OH O and HO₂. However, some drawbacks of the mechanisms used were identified; in particular, they predict different concentrations of CH₂O. As for laminar flame speed simulations, the Konnov et al. mechanism predicts around two times higher values than in experiment, while the Glarborg et al. and updated AramcoMech2.0 show good agreement with the experimental data.

这项工作提出了层状预混甲酸[HC（O）OH] / H ₂ / O ₂ / Ar火焰在不同当量比（φ= 0.85、1.1和1.3）下稳定在大气中的平板燃烧器上的实验和动力学模型研究压以及HC（O）OH / O _2的层流火焰速度在1个大气压下/ Ar火焰（φ= 0.5–1.5）。使用建议用于甲酸氧化的三种不同的详细化学动力学机理模拟了火焰结构以及层流火焰速度。燃料混合物中的组分显示出不同的消耗曲线，即氢的消耗速度比甲酸要慢。根据动力学分析，观察到的现象的原因是所研究的火焰以氢为燃料，但氢也是由HC（O）OH分解形成的中间产物。对测量和模拟火焰结构的比较表明，所有机理都能令人满意地预测反应物，主要产物和中间体的摩尔分数分布。值得注意的是，Glarborg等人，Konnov等人提出的机制。和更新的AramcoMech2。₂。但是，发现了使用的机制的一些缺点；特别是，他们预测了CH ₂ O的不同浓度。至于层流火焰速度模拟，Konnov等人。机理预测的值大约是实验值的两倍，而Glarborg等人。并且更新的AramcoMech2.0与实验数据显示出良好的一致性。