D-14 Steam Turbine

Uniquely configured for the FlexEfficiency* 50 Combined Cycle Power Plant, the D-14 steam turbine delivers a new level of performance and efficiency with enhanced operational flexibility and improved ease of maintenance.

A World-Class Standard of Efficiency and Flexibility

Integrated into the single-shaft FlexEfficiency 50 Plant configuration and rated at 180 MW, the advanced D-14 steam turbine is a three casing design that features a high pressure (HP) section, intermediate pressure (IP) section, and double flow, low pressure (LP) section. This configuration enables very effective management of clearances to deliver a high power density solution and outstanding overall efficiency greater than 40%.

The integrated clutch provides enhanced operating flexibility in the FlexEfficiency 50 Plant power train, enabling about 85% load attainment in less than 20 minutes under hot start conditions.

Advances in turbine maintainability and detectability, such as bearings external to the LP hood, adjustable stationary nozzles with the rotor in place, and improved turbine monitoring sensors, enable one of the most effective turbine maintenance and shortest outage durations possible.

D-14 Steam Turbine Highlights

3-Section Advanced Steam Turbine Architecture

  • Improved clearance and sealing control
  • High efficiency configuration

High Efficiency Advanced Technology (HEAT*) Proven High Performance Steam Path

  • Builds on proven technology in axial flow steam turbines
  • Increases overall efficiency for higher output and lower back pressure

Drum Rotor Construction with Blinglet Nozzles Compared to Previous Configurations

  • Advanced leakage management
  • Improved aerodynamics
  • Enhanced overall steam turbine performance

Integrated Self-Synchronizing Clutch in Front Standard

  • Provides plant operational flexibility compared to previous configurations

1,060mm And 850mm Last Stage Buckets (LSBs)

  • Advanced bucket aerodynamics and dovetail configuration

Common LP Architecture for Cooling Tower and Air-Cooled Condenser Applications

  • Single side exhaust LP
  • Common plant shaft line, regardless of plant cooling configuration
  • Enables standard plant arrangement for reduced overall foundation and plant construction costs compared to previous configurations
  • Facilitates more efficient balance of plant maintenance compared to previous configurations

Downloads

Contact Us

We’re here to answer your questions about GE’s FlexEfficiency* Portfolio of products. Please use the link below to contact an expert in our sales department.