COMPLEX PRIME MOVER SYSTEM

摘要

PURPOSE:To improve thermal efficiency sufficiently by chemically reacting a portion or all of fuel fed to a gas turbine through waste heat energy then converting to secondary fuel having high combustion energy and feeding. CONSTITUTION:A fuel pre-heater 10 is provided in the downstream region while a catalyst cracking reactor 7 is provided in upper stream region than a steam generator 3c in a gas duct 3a in an exhaust gas boiler system 3 then fuel such as methanol is fed and converted into secondary fuel a' having higher combustion energy in a reactor 7 to be fed together with combustion chamber air (b) boosted through an air compressor 2b to a combuster 1. An auxiliary burner 8a is provided at the position where the reactor 7 is positioned or in upper region to feed fuel (a) through a valve 8b to constitute a heating system 8 for selectively controlling heat to be fed into the reactor 7 while to perform heating at start. Consequently thermal efficiency can be improved sufficiently to enable feeding of secondary fuel at start or under low load.