An Experimental Combustion and Flame Stabilization Study of Dump Burners,

摘要

An experimental investigation of the mixing, flammability and combustion mechanisms of dump burners was conducted. Tests were carried out with a 9:1 expansion area coaxial configuration at atmospheric burner pressure, and over a wide spectrum of air velocity, air temperature and fuel/air ratio. Liquid JP-4 was injected normal to the airstream through eight orifices located in the inlet wall upstream of the burner. The effects of air flow conditions, fuel injection location, global equivalence ratio, and secondary hot and cold oxidizer injections on mixing, ignition, blow-out flameholder base region and combustor performances were studied.