Extremely weak hydrogen flames

  • V. R. Lecoustre
  • , P. B. Sunderland
  • , B. H. Chao
  • , R. L. Axelbaum

Research output: Contribution to journalArticlepeer-review

Abstract

Hydrogen jet diffusion flames were observed near their quenching limits. These involved downward laminar flow of hydrogen from a stainless steel hypodermic tube with an inside diameter of 0.15 mm. Near their quenching limits these flames had hydrogen flow rates of 3.9 and 2.1 μg/s in air and oxygen, respectively. Assuming complete combustion, the associated heat release rates are 0.46 and 0.25. W. To the authors' knowledge, these are the weakest self-sustaining steady flames ever observed.

Original languageEnglish
Pages (from-to)2209-2210
Number of pages2
JournalCombustion and Flame
Volume157
Issue number11
DOIs
StatePublished - Nov 2010

Keywords

  • Microcombustors
  • Microflames
  • Quenching limits

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