Advanced Technology Features
High Efficiency Steam Paths • High reaction 3-D blade and nozzle airfoils are designed for high pressure (HP), intermediate pressure (IP), and low pressure (LP) steam conditions to achieve industry-leading performance.
• Integral covered blades with continuous contacting surfaces provide excellent damping capability for superior mechanical integrity.
• Nozzle design provides precise control of radial clearances and throat areas to help ensure greater output and efficiency.
Welded Rotors • With more than eight decades of welded rotor experience, our designs are proven and reliable.
• Better access for ultrasonic testing equipment translates to higher reliability.
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.
Family of High Efficiency Last Stage Blades • We offer a comprehensive family of last stage blades to meet your project’s specific conditions. — Up to 50 inch (1270 mm) for 60 Hz — Up to 60 inch (1524 mm) for 50 Hz
• Robust mechanical construction features enable high reliability.
• 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.
Shrink Ring Design • GE’s unique and proven shrink ring design reduces distortion, allowing critical clearances to be maintained and sustaining performance over the life of the machine.
• Compact design with smaller wall thickness provides flexible load cycling and faster startup times.
Proven Validation Methods • GE thoroughly tests hardware to ensure every machine meets the reliability and performance standards our customers demand.
• The Low Pressure Development Turbine is a key element of our test facility in Schenectady, NY, USA. This test facility uses steam to test our LP designs for both mechanical robustness and aerodynamic efficiency.
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