Fuel feed system for gas turbine, has control system controlling fuel supply, such that chambers attached to distributor are maintained with diffusion flame, and chambers attached to other distributor are maintained with premixed flame

摘要

The system has a set of fuel distributors attached with a set of combustion chambers. Each fuel distributor supplies fuel according to a predetermined fuel plan to the corresponding chamber. A control system (500) functionally coupled with the respective fuel distributor controls the supply of the fuel, such that the chambers attached to one of the fuel distributors are maintained with diffusion flame or premixed partial diffusion flame, and the chambers attached to the other fuel distributor are maintained with premixed flame during an operating mode.