Study of Electro-Chemical Properties and Conditions of Flame Stabilization of Promising Fuel Mixtures CH4/H2 and NH3/H2

This paper investigates the combustion characteristics of promising decarbonized fuel mixtures—methane/hydrogen (CH4/H2) and ammonia/hydrogen (NH3/H2)—with a focus on how they interact with external electric fields. The key findings are that these flames possess significant electrochemical properties, allowing for non-intrusive control over their stabilization, shape, and structure using relatively weak electric fields. The research combines experimental techniques like volt-ampere characteristic (VAC) measurement and advanced Hilbert visualization to analyze flame deformation, temperature distribution, and species concentration. Two orientations of the electric field were considered: transverse and longitudinal. For the transverse field, an assessment of the degree of flame deformation was made, indicating the preservation of the laminar combustion regime. In the longitudinal electric field, a change in the combustion stabilization mode was observed, which was detected through visualization and current-voltage characteristics (CVC).