Analysis of Reaction Kinetic for Gas Explosion in Enclosed Space
LIANG Yun-tao
Abstract：The SENKIN code of the CHEMKIN Ⅲ chemical kinetics package was modified to include a computational gas-explosion model within a constant volume.The code was used to analyze reaction kinetics during a gas explosion.The detailed reaction mechanism included 16 reactive species and 41 reaction steps.The effect of temperature,pressure and mole-fraction was examined.Sensitivity analysis indicated the key steps that affect gas explosions and which gas mixtures were most prone to explosion.After explosion the predicted temperature and pressure were about 2 800 K and 0.24 MPa.The key steps at the beginning of the explosion are CH_3+O_2=CH_3O+O and CH4+HO2=CH_3+H_2O_2.The key steps that are involved in the formation CO and CO_2 are CH_3+O2=CH_3O+O,CH_4+O_2=CH_3+HO_2,CH_4+HO_2=CH3+H_2O_2,CH_3+HO_2=CH3O+OH,and H+O_2:OH+O.
Keywords：gas explosionchemical reaction kinetics modelnumerical simulationsensitivity analysiscatastrophic gases
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 196-200 )