Ignition enhancement and NO formation of NH3/air mixtures by non-equilibrium plasma discharge

Unraveling Nonequilibrium Generation of Atomic Nitrogen and Hydrogen in Plasma-Aided Ammonia Synthesis

“…Plasma kinetic modeling was performed by a zero-dimensional (0D) hybrid ZDPlasKin-CHEMKIN model , using a time-splitting scheme to obtain insights into the reaction pathways of N and H. This model used a validated N 2 /H 2 plasma chemistry ,− to calculate the time evolutions of temperature and various species densities, i.e., vibrationally and electronically excited species, radicals, molecules, ions, and electrons, in a plasma discharge. Especially, this N 2 /H 2 plasma kinetic model incorporates a comprehensive reaction kinetics of vibrationally excited species involving impact vibrational excitation, vibrational–translational (V–T) relaxation and V–V/V–V′ exchange based on Schwartz, Slawsky, and Herzfeld (SSH) theory, as well as chemical abstraction reactions based on Fridman–Macheret α-model .…”