Experimental, Kinetic Modeling and Morphologic Study of the Premixed Combustion of Hydrogen/Methane Mixtures

In this work, an experimental study and kinetic characterization of the combustion process a morphologic hydrogen/methane–air mixtures are presented. The was performed in optical access cylindrical constant-volume bomb. This bomb is equipped to register instantaneous pressure during records images using high-speed Schlieren technique. provides straightforward information compute flame propagation speed direct evidence apparition cellularity on front. Through process, it possible conduct morphological monitoring model. Simultaneously, by means two-zone thermodynamical model, with temporal evolution as main intake, significant parameters determined different fuels under premixed conditions: burning velocity, rate combustion, burned unburned temperature, mass fraction, heat release, among others. Experimental results compared modeling obtained Cantera package Gri-Mech 3.0 mechanism. Results show that greater percentage hydrogen fuel mixture increases velocity front surface. At same time, leaner higher equivalence ratios enhance onset flames. Burning increase initial temperature fuel/air ratio. All were validated other data from literature.