gas turbine operation
DESCRIPTION
Gas Turbine OperationTRANSCRIPT
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GAS TURBINE
OPERATIONAL FUNDAMENTALS & FUNCTIONS
MUDASSIR NAWAZManagement Associate (Batch-18)
Operations (Utilities)
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INTRODUCTION
FLOW DISCRIPTION
FUNDAMENTALS
DIFFERENT SECTIONS
STARTUP STEPS
CONTENTS
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INTRODUCTION
Model PG-5371
ISO Rated Power 26.3MW
Control System MARK V(TMR)
RPM 5094
Drive Generator
GAS TURBINE
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FLOW DISCRIPTION
COMBUSTION CHAMBER
TURBINECOMPRESSOR
LOADSTARTINGMEAN
EXHAUST
FUEL GAS
AMBIENT AIR
ATMOSPHEREHRSG
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GAS TURBINE FUNDAMENTAL
1
2 3
4
P
V
1 2 COMPRESSION
BRAYTON CYCLE
2 3 COMBUSTION
4 1 EXHAUST
3 4 EXPANSION
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GAS TURBINE SECTIONS
Accessory Section
Air Inlet Section
Compressor Section
Combustion Section
Turbine Section
Exhaust Section
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ACCESSORY SECTION
Starting Means (Diesel Engine)Torque ConverterAccessory Drive gearMain/Auxiliary Lube Oil PumpEmergency Lube Oil PumpMain/Auxiliary Hydraulic
Oil PumpLube Oil CoolersLube Oil Filters
Main Hydraulic Oil Pump
Accessory Drive Gear
Torque Converter
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Lube Oil Reservoir1700 Gallon
F 5µ
Trip Oil Filter
Lube Oil Cooler
VPR2-1
VPR1-1
VR1-1
F 5µ
Lube Oil Filter
F 0.5µ
Coupling Oil Filter
Shaft DrivenGear Pump
Auxiliary Pump
Emergency Pump
Coupling Oil
To Hydraulic Oil Pump
Bearing OilTrip Oil
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AccessoryCoupling
ActiveThrust
InactiveThrust
No # 1JournalBearing
LoadCoupling
LoadEquipment
Coupling Oil
Lube Oil Drain to Reservoir
Bearing Oil
No # 2JournalBearing
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AIR INLET SECTION
Filter CompartmentSilencing BafflesTrash ScreensAir Inlet PlenumInlet Guide Vanes Filter
Compartment
SilencingBaffles
Air Flow
TrashScreen
Air InletPlenum
IGV
PinionsRack
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COMPRESSOR SECTION
Inlet Casing Forward Casing Aft Casing Discharge Casing
4th StageAir
10th StageAir
17th StageAir
Compressor Rotor
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COMBUSTION SECTION
Combustion ChambersFuel NozzlesCrossfire TubesSpark PlugsFlame DetectorsTransition Pieces
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TURBINE SECTION
First StageSecond Stage
1th Stage
2nd Stage
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EXHAUST SECTION
DiffuserExhaust ThermocouplesDiverter DamperGuillotine Damper
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FUEL GAS SYSTEM
Gas stop/speed ratio valve (SRV) Gas control valve (GCV)Gas pressure gaugesGas vent valveGas fuel hydraulic trip relayHydraulic oil operated servo valves
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90SR-1
65GC-1
Trip Oil
SRV GCV
Fuel Gas
Hydraulic Oil
P2P3
P1
VH5-1
GasNozzles
20VG-1
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STARTUP STEPS
Purging
Warming up time
Auxiliary lube/hydraulic oil pump and Ratchet motor start, Jaw clutch will engage, Diesel engine start
START(14HR(0% SPEED)
CRANKING14HM(20% SPEED)
FIRE(UPTO 50% SPEED)
At 60% speed Diesel engine disengage and shutdownACCELERATE
14HA(50% SPEED)
At 95% speed aux lube/hydraulic oil pump stop, bleed valves closes
FSNL14HS(95% SPEED)
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TRIPPING CAUSES
High Inlet Filter ∆PLow Lube Oil PressureLow Trip Oil PressureHigh Exhaust PressureHigh Lube Oil TemperatureHigh Exhaust Temperature
High Temperature SpreadLoss Of FlameOver Speed TripHigh VibrationDiverter/Guillotine Damper
ClosedCO2 Released
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Questions are Welcome ???