METHOD FOR FOSSIL FUEL COMBUSTION IN COMBUSTION CHAMBER OF GAS-TURBINE PLANT OR IN OTHER FUEL- COMBUSTION FACILITY Russian patent published in 1998 - IPC

FIELD: gas turbine and steam generator manufacture. SUBSTANCE: fuel is pre-mixed with primary air to obtain fuel-air mixture having excess air ratio of 0.75-0.85 at point of efflux to combustion zone in annular mixing chamber accommodating vane swirler. Secondary air is passed to combustion zone in at least one set of jets over periphery of combustion zone; some portion of fuel in the amount of maximum 30% enters combustion zone together with secondary air whose jets are inclined through maximum 60 deg. to combustion zone axis and can be swirled unidirectionally to or opposing angle of swirling relative to both primary and secondary air; in addition, water (steam) is fed to combustion zone together with primary air. EFFECT: reduced pressure drop across burner assembly. 7 cl, 2 dwg