Superposition characteristics of gas explosion opposed-flow flame based on chemical kinetics

作者：Zhu Chuan Jie^*; Lin Bai Quan

来源：Journal of China Coal Society, 2011, 36(SUPPL. 1): 114-118.

• Chemical reaction process
• Gas explosion
• Gas explosions
• Maximum temperature
• Opposed flow flames
• Reaction mechanism
• Reaction process
• Reaction steps
• Reaction zones
• Superposition
• Variation of Parameters

In order to investigate the chemical reaction process of explosion superposition flame, the chemical kinetics and 58-step reaction mechanism of CH4 were used to study the variation of parameters in chemical reactions. The obvious characteristic of opposed-flow flame is that the reaction process is symmetrical in both sides of reaction zone. The fraction of productions is highest at flame meeting point. The maximum fraction of H2O is 0.185382, CO2 for 0.0828964, the maximum temperature is 2246.43 K. The maximum fraction of CO, H2 ions in reaction zone is respectively 5.44228% and 2.43082%, which is much higher than other ions. This indicate that the two ions play a key role in promoting reactions. In addition, the reaction step of OH+H2H2O+H play a key role in the production of H2O and its rate is 0.0105937 mol/(cm3&middots), the reaction step of CO+OHCO2+H for CO2 and with a rate of 0.00376956 mol/(cm3&middots).

• 出版日期2011
• 单位中国矿业大学（北京）