While a repair technician can bring new life to an old fan, it also is possible to make several modifications and add options that were not part of the original plan but enhance fan function and operational performance. Some possibilities include:
  • Alloy construction.
  • Anti-surge vanes.
  • Anti-thrust vanes.
  • Bearing redesign.
  • Ceramic liners.
  • Cone liners.
  • Deflector plates.
  • Detipping.
  • Fatigue life analysis.
  • Finite element analysis.
  • Foundation analysis.
  • Full blade liners.
  • Gas-tight construction.
  • Hub liners.
  • Impact testing.
  • Leading edge bars.
  • Partial blade liners.
  • Resonance control.
  • Rotor balancing.
  • Scalloping.
  • Scroll liners.
  • Shaft design.
  • Shaft seals.
  • Shaft sleeves.
  • Silencers.
  • Speed change.
  • Spray nozzles.
  • System change.
  • Tip-out.
  • Thermal analysis.


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