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1. General Electric PG 9171 E Gas Turbine Equipment Data


1.1. GAS TURBINE DESIGN DATA
            TYPE : PG 9171 E
            GAS TURBINE APPLICATION : GENERATOR DRIVE
            CYCLE : COMBINED CYCLE
            TYPE OF OPERATION : BASE
           
            COMPRESSOR : STAGE : 17 SPEED : 3000 R.P.M.
            TURBINE : STAGE : 3 SPEED : 3000 R.P.M.
 

1.2. GAS TURBINE EQUIPMENT DATA SUMMARY
            COMPRESSOR SECTION
                        Number of compressor stages - Seventeen (17)
                        Compressor type - Axial flow, heavy duty
                        Casing split - Horizontal flange
                        Inlet guide vanes type - Modulated
            TURBINE SECTION
                        Number of turbine stages - Three (3) single shaft
                        Casing splits - Horizontal
                        Nozzles - Fixed area
            COMBUSTION SECTION
                        Type - Fourteen (14) multiple combustors, reverse flow design
                        Fuel nozzles - One (1) per combustion chamber
                        Spark plugs - Two (2), electrode type. Spring-injected self-retracting
                        Flame detectors
                                    Eight (8), ultra-violet type
                                    Four (4) primary
                                    Four (4) secondary
            BEARING ASSEMBLIES
                        Quantity - Three (3)
                        Lubrication - Pressure lubricated
                        N° 1 bearing assembly (located in inlet casing assembly)
                                    - Active and inactive thrust and journal, all contained in one assembly
                        Journal - Elliptical
                        Active thrust - Tilting pad, self-equalizing
                        Inactive thrust - Tapered land
                        N° 2 bearing assembly (located in the compressor discharge casing)
                                    - Elliptical journal
                        N° 3 bearing assembly (located in the Exhaust frame)
                                    - Journal, tilting pad
            FUEL SYSTEM
                        Operating type - Natural gas DLN
                        Fuel control signal - SPEEDTRONIC control system
                        Gas stop/ratio and control - Electro-hydraulic servo-control valves 
            LUBRICATION SYSTEM
                        Lubricant - Petroleum base
                        Total capacity - 3,300 gallons (approx.) i.e. 12,491 liters (approx.)
                        Main lube pump - Shaft-driven, integral with accessory gear
                        Auxiliary lube pump - A.C. motor-driven, vertical, submerged, centrifugal type
                        Emergency lube pump - D.C. motor-driven, vertical, submerged, centrifugal type
                        Heat exchanger(s) :
                                    Type - Oil heat to fresh water
                                    Quantity - Two in parallel
                        Filter(s) :
                                    Type - Full flow with transfer valve     
                                    Quantity - One (1)
                                    Cartridge - type Five micron filtration pleated paper
            COOLING WATER SYSTEM (in closed loop)
                        Pumps - Two (2) water pumps located on the water skid outside of the G.T. building
            CONTROL - SPEEDTRONIC MARK VI control system
            PROTECTION - Over temperature, vibration, flame detection
            BLEED HEATING SYSTEM

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