TRAINING COURSE: Combined Cycle Power Plant Operations and Troubleshooting

Module (02) Heat Recovery Steam generator HRSG

• 2.1 Common HRSG arrangements
• 2.2 HRSG components: Drum, Economizer, Evaporator and Super heater
• 2.3 Different designs of evaporator section, namely A,O,D,I and horizontal.
• 2.4 Circulation ratio.
• 2.5 Single, double, triple pressure HRSG,
• 2.6 Arrangement of coils and Evaporator pinch design.
• 2.7 Forced circulation and natural circulation.
• 2.8 Difference between HRSG and conventional boilers.
• 2.9 Quality of water and requirements of purity, Ph values etc
• 2.10 Water treatment and dosing.
• 2.11 Drum Level Controls
• 2.12 Shrink and swell
• 2.13 Types of level control systems
• 2.14 Drum Level Measurements
• 2.15 Live steam temperature control and attemperators

Module (03) Gas Turbines in Combined cycles

• 3.1 Inlet air and filtration systems.
• 3.2 Weather hoods and Bird Screens
• 3.3 Moisture Separators
• 3.4 Different types of Filters 
•  3.5 Trash screen, Inlet plenum and pill mouse.
• 3.6 Effect of Compressor fouling on plant heat rate.
• 3.7 Recommended wash and cleaning cycles.
• 3.8 Compressor surge
• 3.9 Inlet guide van (IGV)
• 3.10 Inlet Guide Vane Control System
• 3.11 Pulsation protection control
• 3.12 Turbine Section
• 3.13 Flow through blades
• 3.14 Blade cooling
• 3.15 Case study.
• 3.16 Advanced turbine blades
• 3.17 Gas Turbine Start-up and Shutdown
• 3.18 Starting Systems: Static Starter

Module (04) Fuel system and combustion chambers in gas Turbines

• 4.1 Types of combustion chambers
• 4.2 Combustion champers components
• 4.3 Ignition system and Flame detector
• 4.4 Emissions from gas turbines and NOx control
• 4.5 Steam/water injection combustion chamber.
• 4.6 Fuel staging and single digit NOx control.
• 4.7 Gas Fuel system 4.8 Liquid fuel system
• 4.9 Diffusion flame 4.10 Premix flame.
• 4.11 Mixed diffusion and premix flame
• 4.12 Dry Low NOx technology combustion systems
• 4.13 Typical example SGT6-5000F ULN burner

Module (05) Performance of Gas Turbine and effect of Inlet cooling

• 5.1 Determining ISO Power and ISO Heat Rate
• 5.2 Correcting for Ambient Temperature, Altitude, Humidity,
• 5.3 Different losses. 5.4 Part load heat rate
• 5.5 Gas Turbine Inlet Air Cooling
• 5.6 Evaporative cooler and Fogging system
• 5.7 Mechanical refrigeration system (direct type)
• 5.8 Mechanical refrigeration system (indirect type)
• 5.9 Absorption chiller
• 5.10 Performance Evaluation of Different Inlet Air Cooling Systems:
• 5.11 Capital Cost Comparisons of Inlet Cooling Systems
• 5.12 Thermodynamic calculation for mechanical chiller system
• 5.13 Power calculation for mechanical chiller system

Module (06) Condensate System

• 6.1 Steam Surface Condenser
• 6.2 Condenser hotwell level gauge and control
• 6.3 Vacuum Breakers
• 6.4 Condenser vacuum systems
• 6.5 Condenser leaks
• 6.6 Deaerator

Module (07) Combined Cycle Power Plant Control

• 7.1 Elements of Governor.
• 7.2 Why Is Droop Necessary and Droop Curve
• 7.3 Uses of Droop
• 7.4 Isolated Unit
• 7.5 System Tied to a Utility Grid
• 7.6 Principles of hydraulic Amplifiers
• 7.7 Hydraulic Fluid Accumulators
• 7.8 The Valve Actuators
• 7.9 Controlling Type Actuators
• 7.10 Actuator servo valve
• 7.11 The dump valve controller
• 7.12 Non-Controlling Actuators (On-Off control actuators)
• 7.13 Speed Control
• 7.14 The load control
• 7.15 Load Control and Frequency Response of a Combined Cycle
• 7.16 Closed loop load/ frequency control without separate steam turbine control
• 7.17 Steam turbine separate control
• 7.18 Digital electrohydraulic system.
• 7.19 Fast Load Reduction (RUNBACK).
• 7.20 Overspeed Limitation
• 7.21 Over speed protection controller (OPC).
• 7.22 Overspeed Protection:
• 7.23 Mechanical Over Speed Trip
• 7.24 Electronic Overspeed Trips
• 7.25 Emergency trip solenoid valve.