Turbulent Consumption Speeds of High Hydrogen Content Fuels From 1–20 atm

Abstract

This work describes measurements and analysis of the turbulent consumption speeds, ST,GC, of H2/CO fuel blends. We report measurements of ST,GC at pressures and normalized turbulence intensities, urms'/SL,0, up to 20 atm and 1800, respectively, for a variety of H2/CO mixtures and equivalence ratios. In addition, we present correlations of these data using laminar burning velocities of highly stretched flames, SL,max, derived from quasisteady leading points models. These analyses show that SL,max can be used to correlate data over a broad range of fuel compositions but do not capture the pressure sensitivity of ST,GC. We suggest that these pressure effects are more fundamentally a manifestation of nonquasisteady behavior in the mass burning rate at the flame leading points.