Further analysis of chemical kinetic structure of a standoff microjet methane diffusion flame near extinction

T. S. Cheng, Y. C. Chao, C. P. Chen, C. Y. Wu

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Numerical results of a standoff microjet methane diffusion flame are further analyzed to elucidate the characteristic chemical structure of the flame near the extinction limit. Computed results indicate that the standoff behavior of the microjet diffusion flame is a consequence of flame quenching on the tube wall, followed by the sequence of accelerating fuel pyrolysis by heat conduction through the tube wall, producing intermediate radicals, initiating further reaction on the HO2 path near the tube wall, creating a hot zone in the quenching gap region, and finally forming a reaction kernel to hold the flame.

Original languageEnglish
Pages (from-to)461-467
Number of pages7
JournalCombustion and Flame
Volume152
Issue number3
DOIs
Publication statusPublished - 2008 Feb

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

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