Effects of CO 2 and N 2 Dilutions on Laminar and Turbulent Flame Propagation

Paper #:
  • 2011-01-1878

Published:
  • 2011-08-30
Citation:
Hayakawa, A., Miki, Y., Kobayashi, S., Nagano, Y. et al., "Effects of CO2 and N2 Dilutions on Laminar and Turbulent Flame Propagation," SAE Technical Paper 2011-01-1878, 2011, https://doi.org/10.4271/2011-01-1878.
Pages:
10
Abstract:
EGR (Exhaust Gas Recirculation) is adopted to reduce NOx emission in spark ignition engines. The effects of dilution with CO₂ and N₂, the main components of EGR, on laminar flame were investigated. It had been found that CO₂ and N₂ dilutions affected not only laminar burning velocity but also the response of flame to the flame stretch due to the change in the thermo-diffusive properties of the mixtures by the dilutions. Thus, turbulent flames were also investigated at fixed flame stretch factors to examine solely the thermo-diffusive effects on turbulent flame.
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