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E-588 - Gas Turbines

5 days MAT/GT
Level
Proficiency
Audience
  • Engineers and technical executives involved in the definition, study, operation and maintenance of industrial gas turbines.
Purpose
  • This course provides a thorough knowledge of gas turbine functioning, technology, operation and maintenance.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • understand gas turbine functioning and operation,
  • define the selection criteria of a gas turbine,
  • take part in diagnosis following incidents on these machines,
  • know the main maintenance operations.
Prerequisite
  • No prerequisites for this course.
Ways and means
  • Study of real cases corresponding to industrial situations.
  • Various training supports: presentation supports, manufacturer’s documentation, operator’s instructions, PI&D.

TECHNOLOGY 2 days
  • Presentation: functions of the different elements, machines available on the markets, evolution.
  • Classification: types of cycles, technology, types of drivers.
  • Construction: study of the different compression, combustion and expansion elements.
  • Auxiliaries: startup, filtering station, cooling, lubrication, control, safety devices, exhaust.
FUNCTIONING - PERFORMANCE 1 day
  • Compression in a centrifugal and axial compressor. Performance, limits of use.
  • Low NOx content combustion: types of combustion chambers, combustion operation, influence of the fuel.
  • Expansion: study of expansion in single-shaft turbines, two-shaft turbines, impulse turbines, reaction turbines.
  • Performance related to ambient conditions, the fuel chosen. Standardized representations.
  • Operating parameters: speed, critical T3, IGV. Examples of open-cycle and cogeneration (combined cycle) strategies.
OPERATION & TROUBLESHOOTING 1 day
  • Startup and shutdown sequences.
  • Control and safety system.
  • Functioning on several fuels and impact.
  • Feedstock adjustment.
  • Washing of compressors and turbines.
  • Monitoring of the inlet fluid quality (air, fuel oil): thresholds.
  • Main problems listed and degradation mechanisms.
  • Reading of the PID of the gas turbine main circuits:
  • Start-up and clockwise rotation.
  • Sealing and cooling air.
  • Fire safety.
  • Compressor washing.
  • Fuel.
  • Lubrication oil.
  • Control oil.
  • Monitoring.
MAINTENANCE 1 day
  • Notion of maintenance plan.
  • Influence of the operating conditions.
  • Elements of inspection on hot equipment and of general review.
  • Endoscopic examination.