Laminar Burning Velocity, Markstein Length and Cellular Instability of Spherically Propagating NH2/H2/Air Premixed Flames at Various Pressures

Blending hydrogen into ammonia can I mprove the burning intensity of ammonia and the safety of hydrogen, and it is important to understand the flames of NH3/H2/air mixtures. In this work, lamiar flame characteristics of 50-50 (vol%) ammonia-hydrogen mixtures in air were studied using the spherical flame propagation method in a constant-volume bom at initital temperature Tu = 298K and different pressures.