Mechanism Reduction and Bunsen Burner Flame Verification of Methane

Haitao Lu, Fuqiang Liu, Yulan Wang, Xiongjie Fan, Jinhu Yang, Cunxi Liu and Gang Xu
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Haitao Lu: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Fuqiang Liu: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Yulan Wang: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Xiongjie Fan: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Jinhu Yang: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Cunxi Liu: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Gang Xu: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

Energies, 2018, vol. 12, issue 1, 1-20

Abstract: Based on directed relation graph with error propagation methods, 39 species and 231 reactions skeletal mechanism were obtained from Mech_56.54 (113 species and 710 reactions) mechanism of methane. The ignition delay times, laminar flame propagation speed, and important species were calculated using the simplified mechanism at different pressures and equivalence ratios. The simulation results were in good agreement with that of detailed mechanisms and experimental data. The numerical simulation of the Bunsen burner jet flame was carried out using the simplified methane mechanism, and the simulation results well reproduced the temperature, flow fields and distribution of important species at flame zone. The compact methane reduced mechanism can not only correctly respond to its dynamic characteristics, but also can be well used for numerical simulation, which is of great significance in engineering applications.

Keywords: methane; combustion mechanism; mechanism reduction; skeletal mechanism; Bunsen burner (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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