28 combustion of the air and fuel mixture creates hot gases which flow through externally interfaced modules 22 32 and 40 and into supercharger module 46 a portion of the heat from the hot gases is transferred to the working fluid water flowing in the tube bundles as the gases flow through the respective modules the hot gas from convection module 40 passing through pipe 44 to supercharger module 46 after being utilized to operate a gas turbine therein is exhausted through outlet 48 to the atmosphere the gas turbine drives an air compressor located in the supercharger module where it takes in atmospheric air through inlet 47 and compresses it this air goes to the burner module 28 where as stated previously it mixes with injected fuel for combustion the working fluid flows into steam drum module 12 to create a reservoir therein the water flows from a feed water outlet line 16 located on drum module 12 to pump 18 which circulates the water to the various modules water from pump 18 is fed through line 20 to furnace module 22 where it is heated by hot gases a steam and water mixture flows from the top of.