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Communication Dans Un Congrès Année : 2019

Uncertainty in measuring laminar burning velocity from expanding methane-air flames at low pressures

Résumé

The experimental determination of laminar burning velocity remains essential to evaluate the combustion potential of any fuels but also to validate kinetic mechanisms. Recently, researchers are making great efforts to improve the accuracy of the different setups and techniques to determine this parameter. This work proposes an attempt to summarize the different factors contributing to the uncertainty of the expanding spherical flame method. In particular, the validity of two hypothesis (adiabatic flame propagation and thin flame front) is discussed in the case of stoichiometric methane-air flames in low-pressure environment (from 0.2 to 2 bar). Last, the effect of spark electrode diameters was also considered (0.2, 0.5 and 1 mm).
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Dates et versions

hal-02163518 , version 1 (24-06-2019)

Identifiants

  • HAL Id : hal-02163518 , version 1

Citer

Pierre Brequigny, H Uesaka, Z Sliti, D Segawa, Fabrice Foucher, et al.. Uncertainty in measuring laminar burning velocity from expanding methane-air flames at low pressures. 11th Mediterranean Combustion Symposium, Jun 2019, Tenerife, Spain. ⟨hal-02163518⟩
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