Patent ID: 6634165
Filing Date: 2003-10-21
Classification: F01D,F02C,Y02E

Abstract:
A control system for a water injection system of a gas turbine having a compressor, combustion section and a turbine said system comprising:at least one water content sensor at an entrance to an air intake duct of the compressor generating data indicative of a water content of air entering the duct, a processor executing an algorithm for determining a rate of water to be injected by the water injection system into the air flowing through the intake duct based on the total water fraction, wherein the total water fraction is a function of a water fraction of water injected by the water-injection system into compressor inlet air flow and a water fraction of ambient air entering the air intake duct, a water flow rate sensor detecting a rate of water flowing to the water injection system, and data and program memory storing the data indicative of water content and water flow rate, and the algorithm for execution by the processor, wherein said processor generates an output of the algorithm to control a rate of water flowing to the water injection system.