Reaction kinetics of hydrogen-enriched methaneair and propaneair flames

S. Refael, E. Sher

Research output: Contribution to journalArticlepeer-review

50 Scopus citations


A computer program has been developed to calculate the burning velocity and intricate paths of hydrogen-enriched propaneair and hydrogen-enriched methaneair flames. A comprehensive reaction scheme and a rigorous method for the estimation of the transport coefficients have been adopted. The model predictions were examined against experimental results of other investigators, and good agreement has been generally found for a wide range of initial conditions. These include 80 KPa < P < 2 MPa, 280 K < T < 650 K, 0.4 < Φ < 1.5 and hydrogen to fuel molar ratio between 0 and ∞. The major chemical reaction channels by which these mixtures are burned have been analyzed by using the time-dependent kinetic flow charts technique. A possible explanation, which is based on the shortage of H atoms approach, for the complex behavior of the burning velocity of H2-enriched CH4air and C3H8air flames along an unburned gas isentrope as observed by Milton and Keck, has been proposed.

Original languageEnglish
Pages (from-to)326-338
Number of pages13
JournalCombustion and Flame
Issue number3-4
StatePublished - 1 Jan 1989

ASJC Scopus subject areas

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


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