Experimental and numerical study of the effect of elevated pressure on laminar burning velocity of lean H2/CO/O2/diluents flames

Laminar burning velocities (SL) of H2/CO/O2/diluents (He or N2) were reported at lean conditions (ϕ = 0.5–1.0), elevated pressures (1–11 bar) and a wide range of H2-CO volumetric ratios. A new high-pressure rig based on specially designed heat flux burner was applied to obtain planar, adiabatic and stretch-less flames used for laminar burning velocity measurements. Five popular syngas oxidation mechanisms were tested against the obtained SL data...