Characteristics of laminar inverse diffusion flame formed in two concentric tubes

Yuichi Ohteru, Akiko Matsuo, Masahiko Mizomoto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

CH4-O2-N2 laminar inverse diffusion flames are investigated experimentally on the flame shape, stability and thermal structure. Experimental parameters are the fuel velocity, the fuel mole concentration, the oxidizer velocity, and the oxidizer mole concentration. The results obtained are as follows. In laminar flow region, inverse diffusion flames are categorized into eight types by changing the four parameters. High temperature region moves from the flame tip to the flame base by increasing of the fuel flow rate in the case of inverse diffusion flames, therefore the flames formed in the high fuel concentration are more stable. The inverse diffusion flames have less stable feature compared with the normal diffusion flames formed on the same burner. This is because the flow rate at the flame base of inverse diffusion flames is faster than that of normal diffusion flames.

Original languageEnglish
Pages (from-to)263-270
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume66
Issue number641
DOIs
Publication statusPublished - 2000 Jan
Externally publishedYes

Keywords

  • Axisymmetric flow
  • Diffusion combustion
  • Flame mapping
  • Flame temperature
  • Inverse diffusion flame
  • Jet
  • Laminar flame
  • Soot

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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