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本文基于热流量法搭建了层流火焰速度测量平台,通过测量甲烷的绝热层流火焰速度对平台的可靠性进行了验证。然后运用热流量法对15%H_2-15%CO-70%N_2和12%H_2-19%CO-13.2%CO_2-5.8%CH_4-50%N_2两种组分合成气的绝热层流火焰速度进行了精确测量,并通过Chemkin 4.1软件采用GRI-Mech 3.0,USC MechⅡ和Davis H_2/CO三种机理对试验工况进行了计算。实验数据与计算结果基本一致,尤其与GRI-Mech 3.0机理的计算结果较好地吻合。本文还对实验误差进行了误差分析,对两种合成气的平均测量误差分别达到1.107 cm/s和0.88 cm/s。
In this paper, a laminar flow flame velocity measurement platform was built based on the heat flux method. The reliability of the platform was verified by measuring the laminar flame velocity of the methane laminar flow. Then, the adiabatic laminar flow flame velocities of 15% H_2-15% CO-70% N_2 and 12% H_2-19% CO-13.2% CO_2-5.8% CH_4-50% N_2 The precise measurement was carried out and the experimental conditions were calculated by Chemkin 4.1 software using three mechanisms of GRI-Mech 3.0, USC MechⅡ and Davis H_2 / CO. The experimental data are basically consistent with the calculated results, especially with the calculated results of the GRI-Mech 3.0 mechanism. The error of experimental error is also analyzed in this paper. The average measured errors of the two syngas are 1.107 cm / s and 0.88 cm / s, respectively.