Open AccessKinetic model of methane explosion in a spheroidal explosion tank
Author(s) -
Xinhai Zhang,
Kai Dou,
Zhenmin Luo,
Fangqin Cheng,
Haitao Xue
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/647/1/012039
Subject(s) - methane , kinetic energy , thermodynamics , equation of state , mechanics , enthalpy , chemistry , materials science , physics , classical mechanics , organic chemistry
Methane explosion is studied with a 20-liter content, spheroidal explosion tank. Mixture of methane with oxygen at varied ratio is detonated in the enclosed tank while pressure inside the tank is real-time recorded during the experiments. Temperature and conversion rate of the methane inside the tank during the explosion is calculated according to actual gas equation of state and energy conservation equation. Kinetic equations of the explosion process are derived among conversion rate, species concentration and temperature. Kinetic parameters of the steadily accelerating phase of the explosion process, including the apparent equilibrium constant and enthalpy change, as well as activation energy and pre-exponential factor, are calculated based on kinetic equations and experimental data.