Control systems and methods for water injection in a turbine engine
AssigneeGeneral Electric Company
InventorsStephen R. Payling, Robert P. Coleman, Curtis L. Brown
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Abstract
Control systems and methods for controlling injection of water into a turbine engine are described. In an exemplary embodiment, the water injection system includes a plurality of nozzles for injecting water into a gas flow through the engine, a water source, a water manifold, a water supply line extending from the water source to the water manifold, a water metering valve for controlling flow through the water supply line, an air manifold, an air flow pipe coupled to the high pressure compressor and to the air manifold, a plurality of air feeder tubes extending from the air manifold to the nozzles, and a plurality of water feeder tubes extending from the water manifold to the nozzles.
Claims12
A turbine engine comprising:
- a low pressure compressor comprising an inlet and an outlet;
- a high pressure compressor comprising an inlet and an outlet, said high pressure compressor in axial flow relationship with, and downstream from, said low pressure compressor, said high pressure compressor is a multi-stage compressor;
- a combustor downstream from said high pressure compressor;
- a high pressure turbine downstream from said combustor;
- a low pressure turbine in axial flow relationship with, and downstream from, said high pressure turbine;
- a water injection system comprising:
- a plurality of nozzles for injecting water into a gas flow through said engine, said nozzles comprising a plurality of long nozzles and short nozzles, said nozzles arranged in alternating configuration such that at least one of said short nozzles is circumferentially intermediate each pair of long nozzles;
- a water source;
- a water manifold;
- a water supply line extending from said water source to said water manifold;
- a water metering valve for controlling flow through said water supply line;
- an air manifold;
- an air flow pipe coupled to all intermediate stage of said high pressure compressor and to said air manifold;
- a plurality of air feeder tubes extending from said air manifold to said nozzles;
- an air bleed valve for controlling a size of water droplets discharged from said nozzle;
- a plurality of water feeder tubes extending from said water manifold to said nozzles.
Dependencies are inferred from the claim text.