Flame stability and propagation characteristics for combustion in air for an equimolar mixture of hydrogen and carbon monoxide in turbulent conditions

Hong-Meng Li, Guo-Xiu Li, Yan-Huan Jiang, Lei Li and Fu-Sheng Li

Energy, 2018, vol. 157, issue C, 76-86

Abstract: In this study, the influence of turbulence intensity on flame local structural and local propagation characteristics was studied. In order to achieve this, 50% H2/50% CO with equivalence ratio of 0.8 were conducted under different turbulence intensities ranging from 0 to 1.31 m/s at atmospheric pressure and temperature. The distribution of the flame local radius and flame local propagation speed and the correlation between the two were investigated. The results show that the turbulence can increase the disturbance in the flame front, and enhance the fluctuation of the flame local radius, resulting in an increase in the fluctuation of the flame local propagation speed. With the development of flame, the distribution of the flame local propagation speed tended to become uniform, while the intersection zone of the flame local propagation speed and the flame local radius distribution gradually decreased. When the turbulence intensity ranged between 0.49 m/s to 0.74 m/s and between 1.08 m/s to 1.31 m/s, the sensitivity of the flame local propagation speed to its local characteristics reduced with the increase of the turbulence intensity.

Keywords: Syngas; Turbulence; Flame local radius; Flame local propagation speed; Probability (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:157:y:2018:i:c:p:76-86

DOI: 10.1016/j.energy.2018.05.101

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