Centrifugal, Compressor & Steam Turbine: Design, Operations & Maintenance

Centrifugal Compressor & Steam Turbine: Design, Operations & Maintenance

OBJECTIVES

• An understanding of the construction and operational constraints of centrifugal compressors and steam turbines.
• Knowledge of how to optimally maintain the equipment for the benefit of the company
• Hints and Tips for practical application of monitoring technologies so as to achieve the best results.

WHO SHOULD ATTEND?

This seminar is directed towards Engineers, Operators, Technicians in Maintenance, Engineering and Production. The seminar will also benefit anyone who wishes to update themselves on Maintenance Engineering Technologies, judge the suitability of these technologies for their needs, and learn how to implement them for the benefit of their organizations.

COURSE OUTLINE

DAY 1

Gas Laws & Compression Theory

Compression and Expansion Fundamentals

• Gas Equations
  • Ideal gas equation and practical application
  • Isentropic, polytropic compression
  • Mass and volume capacity
• Practical compression laws
  • Effect of process temperature
  • Power of compression
• Mollier diagrams
  • For gas and steam

Compression and Expansion Mechanisms

• Compression Basics
  • Euler’s law, applications for compressors and turbines,
  • characteristic curves
  • velocities triangle
• Blade types
  • Impulse profile and Reaction profile – where each type are used and why.
• Dynamic Effects
  • Mach number: effect on temperature, pressure and density;
  • Subsonic and supersonic machines
• Simple Calculations
  • Dimensionless coefficients, specific speeds

DAY 2

Practical Applications

Compressor and Turbine Performance and Operation

• Affinity Laws for centrifugal impellers
  • Calculating effect of speed change
  • Calculating effect of impeller changes
• Characteristic curves
  • Effect of change on operating and process parameters
• Operational Problems
  • Surge
  • Stonewall
  • Range of working efficiency
• Capacity control methods
  • Speed change
  • Inlet guide vanes
• Commissioning
  • Pre start checks
  • Vibration survey
  • Runup/rundown analyses

DAY 3

Steam Plant & Turbines

Steam turbines

• Turbine Characteristics
  • Speed
  • Specific consumption
  • Efficiency
• Steam Conditions
  • Influence of inlet steam state
  • Effects of exhaust steam
• Control Systems
  • Speed governor
  • Pressure & temperature control systems
• Safety devices
  • Overspeed
  • Overpressure
• Associated Equipment
  • Condensers
  • Pumps
  • Boilers

DAY 4

Turbine Construction & Maintenance

Construction and Systems

• Construction
  • Casings
  • Diaphragms
  • Stator
  • Blades
• Bearings & Seals
  • Rotor, journal and thrust bearings
  • Internal and shaft seals
  • Coupling
• Rotor Dynamics
  • Balance
  • Critical speeds
• Associated Systems
  • Lubrication system
  • Seal systems
• Typical mechanical incidents

DAY 5

Engineering Aspects

Engineering

• API specifications
• Information required for bidding
• Factory tests