Abstract Laminar flame speeds of formic acid were measured at equivalence ratios of 0.4–1.6, initial temperature of 423–453 K and atmospheric pressure. Chemical kinetic models (Glarborg model and AramcoMech 3.0) were validated against the present experimental data. Deep kinetic insight was investigated using the present models. In addition, detailed analysis was carried out according to transport, thermal and kinetic effect to find out the totally different performance of these two models. The results show that the simulated laminar flame speeds using Glarborg model match well with experimental data while AramcoMech 3.0 apparently over predicts the laminar flame speeds. HOCO and OCHO are driving species for the laminar flame speed of formic acid. Furthermore, the pathway analysis indicates formic acid is consumed mainly by abstraction reaction with OH, forming OCHO radical, which quickly dissociates to H+CO2.

中文翻译：

---

甲酸层流火焰速度的实验和动力学研究

摘要 在 0.4-1.6 的当量比、423-453 K 的初始温度和大气压下测量甲酸的层流火焰速度。化学动力学模型（Glarborg 模型和 AramcoMech 3.0）根据目前的实验数据进行了验证。使用本模型研究了深入的动力学洞察力。此外，还根据输运、热效应和动力学效应进行了详细分析，找出了这两种模型完全不同的性能。结果表明，使用 Glarborg 模型模拟的层流火焰速度与实验数据匹配良好，而 AramcoMech 3.0 显然过度预测了层流火焰速度。HOCO 和 OCHO 是甲酸层流火焰速度的驱动物质。此外，