Gas Turbine Series

The objective of this course is to present and discuss features of the various support systems and auxiliaries that are necessary for operation of the gas turbine. Both ON-BASE and OFF-BASE equipment is studied. Note, that the design of the support systems varies according to the size and purpose of the gas turbine unit. Aero-derivative machines are discussed in a separate course.

Upon completion of this course, the participant should understand and be able to apply the following concepts:

• Bearing layout, journal and thrust
• Typical lubricating oil system
• Oil pumps: main, auxiliary, emergency DC
• Oil coolers, heater, strainers and filters
• Oil temperature and pressure control
• Trip (control) oil system
• Hydraulic oil system
• Air inlet system, filtration, guide vanes
• Compressed air extraction system
• Air cooling systems, bearing seals
• Atomizing air and purge air system
• Air bleed to prevent stall
• Typical fuels used in gas turbines
• Liquid fuel storage and transfer system
• Fuel pumping and heating
• Fuel strainers and filters
• On-base liquid fuel system
• Control and shut-off valves
• False start drains
• Gas fuel handling system
• On-base gas fuel system
• Dual-fuel firing system
• Significance of NOX, SOX, CO, and particulates
• NOX control systems, Low-NOX burners, SCR
• Cooling systems
• Generator cooling, air and hydrogen cooling systems
• Gas Turbine compartment cooling by air
• CO2 fire protection system