Patent ID: 7428818

Claim:
A system for augmenting power output from a gas turbine engine, said gas turbine engine comprising a turbine duct arranged at a gas turbine including a combustor and a compressor having a number of compressor blades, characterized by: a pump unit comprising a variable speed pump adapted to increase a pressure of a liquid; a control unit connected to said pump unit via a signal feed and adapted to control the speed of said pump; a washing unit connected to said pump unit via a feed line, said washing unit comprising at least one nozzle and at least one valve connected to said pump unit via said feed line and to said at least one nozzle via a conduit and being adapted to control a flow rate of liquid being fed to said at least one nozzle, said at least one nozzle of said washing unit being adapted to inject a spray of atomized liquid so as to impinge on the compressor blades in order to wet said blades, thereby obtaining a release of fouling material from said blades; and at least one liquid injection unit comprising at least one nozzle and at least one valve connected to said pump unit via said feed line and to said at least one nozzle via a conduit and being adapted to control a flow rate of liquid being fed to said at least one nozzle, said at least one nozzle of said liquid injection unit being adapted to inject a spray of atomized liquid into an air stream of said turbine duct or at said gas turbine in order to increase a mass flow of said air flow, wherein the power output from said gas turbine engine is augmented.