Plasma-Assisted Ammonia Combustion—Part 3: Combustion of Ammonia in Air

The article considers the effect of low-temperature plasma on stability and completeness of ammonia combustion in air using 3-D modeling methods. The subject for modeling is a real 1-MW thermal power plasma chemical reactor, which uses industrial inductively coupled plasma torch, also named radio frequency (RF) torch, as a flame initiator and sustainer. The influence of the plasma-assisted combustion chamber parameters on the distribution of temperature and concentration of the chemically reactive components in the volume of a fuel-burning device is reported. Calculations of the working process in the combustion chamber were carried out within the range of the air excess coefficient from 1.41 to 2.03 at a pressure of 0.3 MPa. The results could be of interest to the researchers and engineers considering ammonia as a fuel in high power combustion and gasification devices.