Gas and Steam Turbines – Operations, Maintenance and Troubleshooting

Day 1
 Gas Turbine Systems
• Lube oil system description and maintenance.
• Hydraulic oil system description and maintenance.
• Trip oil system description and maintenance.
• Starting oil system description and maintenance.
• Fuel oil system description and maintenance.
• Cooling and sealing air description and maintenance.
• Water washing/ fire protection/heating and ventilation.

 Maintenance and Inspection
• Operating factors affecting maintenance.
• Maintenance practices.
• Types of inspections.
• Inspection intervals.
• Routine inspections/inspection scheduling
 Gas Turbine Mechanical Maintenance.

Day 2
 Combustion Inspection
• Disassembly/reassembly procedures
• Inspection procedures
• Criteria for re-use
• Repair or replacement

 Hot Gas Path Inspection
• Disassembly/reassembly procedures
• Inspection procedures
• Criteria for re-use
• Repair or replacement

Day 3
 Major Inspection
• Disassembly/reassembly procedures
• Alignment checks
• Inspection of bearings/seals and journals

 Evaluation of Maintenance Techniques
• Breakdown maintenance
• Scheduled maintenance.
• Preventative maintenance

Day 4
Steam Turbines
 Standard Practices
• General recommendations.
• Lubrication guidance charts.

 Part 1
 Steam Turbines
operating Principles
impulse Turbines
Reaction Turbines
Steam Turbine Components
Turbine rotors
Blading
Lube oil management
Bearings.
Balancing
Alignment

Part 2
Overview of selection of steam turbines for reliability
Thermodynamics
Steam water rates
Condensing and backpressure turbines
Single & Multistage types
Understanding the losses in steam turbines due to friction.
Residual velocity loss due to mechanical friction.

Part 3
Troubleshooting & understanding Materials of Construction.
General metallurgical behaviour
Turbine blade material
Corrosion /Erosion problems
Wear problems
Future materials.
Coating technology

Part 4
Understanding combined cycle power
GE -Reheat-combined cycles
Overview of GEs range of Combined Cycle Power steam turbines(see simulation video of Steam Turbines