Efficient, reliable and flexible

A world leader in steam turbine technology

content-1-steam-turbines.png

A legacy of steam turbine experience

For more than 120 years, GE has led the industry in steam turbine technology and innovations. Today, GE’s steam turbines continue to lead the way, delivering efficiency and reliability to help ensure our customers’ success.

GE’s steam turbines equip 41% of the world’s combined-cycle plants. Right now there are more than 1,000 combined-cycle steam turbines operating in 70+ countries, generating more than 140 GW of power. Our steam turbines can be installed and operational in eight months or less for industry-leading commissioning.

Steam turbines with high availability and reliability

  • Our robust, reliable steam turbines are enhanced by control systems and the power of GE Digital solutions.
  • Our proprietary long-term testing program validates material behavior and improves steam turbine component reliability.
  • Advanced techniques during the design phase result in lower maintenance intervals and increased turbine availability.
  • Hardware is thoroughly tested to make sure every machine meets the reliability and performance standards our customers demand.

High-efficiency steam paths

  • Industry-leading performance with high reaction 3-D blading designed for high pressure (HP), intermediate pressure (IP) and low pressure (LP) steam turbine modules.
  • Integrally shrouded blades with continuous contacting surfaces provide excellent damping capability for superior mechanical integrity.
  • Our steam turbine design process provides precise control of radial clearances and throat areas to help ensure greater output and efficiency.
  • State-of-the-art technology and deep expertise are applied to our broad last stage blades portfolio for improved efficiency, reliability and availability.

Enhanced operational flexibility for steam turbines in thermal power plants

  • Advanced life prediction methods provide reliable lifetime assessment of the steam turbine components and increased cycling capabilities.
  • Enhanced blade-to-rotor connection design reduces thermal stresses for increased rotor life.
Leading the industry

Explore our steam turbine features

Welded rotors

  • With more than 80 years of welded rotor experience, we provide designs that are proven and reliable.
  • Welded rotors allow GE to provide our customers with a longer life and higher reliability and availability.
  • Better access for ultrasonic testing equipment translates to higher reliability.

Single bearing design

Our multi-casing steam turbines have a single bearing between each turbine section that enables:

  • Avoidance of load shifting for higher reliability.
  • Efficient shaft alignment for reduced installation time.
  • Shorter overall turbine shaft length for lower building costs.

Advanced sealing features

  • Shaft and tip brush seals, developed in conjunction with our global research organization, improve leakage control when compared to more conventional sealing technology.
  • Abradable coatings on stationary seals enable the reduction of radial clearances, decreasing long-term performance degradation.

High-efficiency last-stage blades

Features of our enhanced last-stage blade portfolio:

  • Densely staggered last-stage blade sizes for project-specific cold-end conditions and increased efficiency—up to 60’’ for 50Hz and up to 50” for 60Hz.
  • Robust blade-to-rotor design with high cyclic life capability for high reliability and availability.
  • Features such as full tip shroud, enhanced tip section with low shock loss, aerodynamic part span connector, and increased root-reaction improve steam turbine performance.
  • Advanced radial vortexing improves performance and hood integration over a range of loads.
  • Industry-leading backpressure capability allows for smaller air-cooled condensers, lowering overall plant cost.

Advanced blading

Our innovative blading technologies feature:

  • Modern, three-dimensional profile design that results in higher efficiency.
  • High pressure (HP), intermediate pressure (IP), and low pressure (LP) front stage blades that are milled from a single forging for excellent mechanical integrity and higher reliability.