Laminar burning velocity of hydrogen-air premixed flames at elevated pressure

Xiao Qin, Hideaki Kobayashi, Takashi Niioka

Research output: Contribution to journalArticlepeer-review

89 Citations (Scopus)

Abstract

Experimental and numerical studies on the laminar burning velocity of hydrogen-air mixtures were performed. Measurements of laminar burning velocities were conducted using a new technique based on particle tracking velocimetry (PTV) and image processing for burner-stabilized flames in a high-pressure chamber. Equivalence ratio of the mixtures were varied from 0.6 to 3.0 for the pressure range from 0.1 to 0.5 MPa. A numerical simulation was conducted considering detailed reaction mechanisms and transport properties. At high pressures, the experimental and numerical results agreed reasonably well with each other for mixtures of equivalence ratios of 1.0 and 2.0, while discrepancies were seen for the equivalence ratio 3.0. These discrepancies can be diminished effectively by modifying the rate-coefficient expressions of recombination reactions.

Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalExperimental Thermal and Fluid Science
Volume21
Issue number1-3
DOIs
Publication statusPublished - 2000 Mar

Keywords

  • High-pressure combustion
  • Laminar burning velocity
  • PTV

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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