The laminar flame speeds of premixed CO/H2/O2/H2O were measured at various equivalence ratio and CO/H2 ratio.
A modified CO/H2 combustion reaction mechanism in O2/H2O atmosphere was proposed.
The chemical effects of H2O on CO/H2 combustion reactions were analyzed at different H2 content.
H2O significantly facilitates the CO/H2 combustion reaction for low H2 content.