Stable species concentration of a turbulent premixed methane-air flame

✍ Scribed by H.T. Sommer; W. Adams

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 644 KB
• Volume: 49
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(83)90146-3

✦ Synopsis

Experimental and predicted values of species concentration in a premixed tmbnient methane-air flame are reported. The flow-stabilized flame experiment e~plalned in [ 1,2] was investigated by means of gas samples taken by an isokinedc sampling probe. Five different gas analyzers were used to determine the gas composition at several locations within the flame. These measurements for oxygen, carbon dioxide, carbon monoxide, and nitric oxide ate compared with calculated results. In the numerical calculation the k-e model of [3] was used to describe the turbulent flow. A system of 33 reactions [4] was used to calculate the 16 species concentrations. Experimental results and numerical prediction are in good agreement and the shape of the reaction cone of the premixed flame was predicted almost perfectly. The results for the pollutants NO and CO allow a validation of the reaction kinetic processes of small-scale turbulence in combusting systems.