GE-Alstom Steam Turbines STF60

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Alstom has offered several series and models of steam turbines for the industrial process and power generation markets for combined-cycle operation. All machines use several modules of varying sizes to produce the power and steam output required. Blades are typically made from single-piece forgings. The HP turbine shafts are also made from solid, single-piece forgings, while LP turbine shafts are composed of three forged-steel discs welded together with integrated coupling sections. Single-shell, axial symmetric cases are used for HP sections. They are split horizontally along the turbine axis and bolted together with expansion bolts. The STF60 is a four-casing supercritical reheat steam turbine with an HPT, IPT, and two double-flow LPTs, in addition to a downward condenser. It has a gas/water-cooled generator for 50-Hz operation.

  • Designed for efficiency

  • shaft and balance piston sealing

  • shrink ring design

  • Welded turbine rotors

  • Designed to reduce costs

STF60 Specifications:

  • Frequency (Hz)
    50
  • Inlet pressure (bar)
    165 - 175
  • Reheat steam temperature (°C)
    535 - 565
  • Reheat steam pressure (bar)
    39 - 46
  • Condensing pressure (bar)
    0.04 - 0.08
  • Power Range (MW)
    600 - 729
  • Inlet temperature (°C)
    535 - 540
General Electric (GE Power)
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