H-TALIF measurement for wall radical quenching modelling in microscale combustion

Two-dimensional hydrogen atom (H) distribution in a CH4/air premixed flame in a narrow channel was measured using a newly-developed two-photon absorption LIF (TALIF) setup with high efficiency 205 nm laser. The wall chemical effect of SUS321 and quartz surfaces on the H distribution in a methane flame was examined. Based on the measured H atom concentration near the wall, a radical quenching model focused on the H adsorption is proposed and the...