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...Gas turbine power station a consists of three main segments i compressor ii combustor iii iv principle operation ambient air is compressed to bar pressure and as consequence its temperature rises most this warm used in the burn fuel natural or liquid e g oil etc resulting hot expands through doing work exits at nearly atmospheric but up c extracted during expansion turn which drives generator that produces electricity exit from still has significant amounts energy raise steam drive another combination cycle gives rise term combined ccgt plant working animated open advantages plants they are more compact since burnt directly small combustion chamber rather than bulky boiler no condenser can be started take load quickly min simpler design easy maintain consume less metal other materials for same capacity cost unlike turbines require very water cooling suitable generation where scarcity exists precious disadvantages have lower specific efficiency modern state progress shorter service life...