109D-14 Steam Turbine for the FlexEfficiency*50 Combined Cycle Power Plant fact sheet With power plant operators requiring greater flexibility and Expanding HEAT to Double Flow LP performance in order to deliver economical power, GE has Introduced in 2005, GE's A-Series Steam Turbines, available in developed the 109D-14 Steam Turbine, designed to provide that both 50 and 60 Hz, have utilized GE’s HEAT steam path advantage with GE's 9FB Gas Turbine in combined cycle operation. technology. As the size of today’s combined cycle power plants Primary Considerations and Attributes Tomorrow’s turbines need to meet the needs of an evolving energy industry and provide the best possible economic return for the buyer. The following considerations were taken into account in GE's 109D-14 Steam Turbine design: increase, the steam turbine requires more annulus area in the LP section of the turbine. Thus, the HEAT design has been expanded to the D-Series double flow LP design, enabling more options for the steam turbine configurations that support the continuing needs of measured plant output. • Increased efficiency • Operational flexibility…faster start times • Reduced plant centerline height • High reaction HEAT drum rotor construction • Shorter outage durations • Radially adjustable nozzles • Site cooling flexibility (backpressures) • Increased power density • Advanced rotor, tip, and end packing sealing • Brush and abradable sealing technology The key enhancements incorporated into the design that address the needs of the power plant are: • xpanded HEAT* technology to double flow low E pressure (LP) units • eparate high pressure (HP), intermediate pressure (IP), S and LP configuration • 600C HP/IP inlet temperature capability • 165 bar HP throttle pressure capability • Enhanced 820 mm and 1,040 mm last stage buckets • Integrated clutch capabilities in front standard • Single side LP exhaust hood • Advanced clearance control • ntegral cover buckets and nozzles with I improved aeromechanics LP sections • High reaction drum rotor construction • Double flow design • 820 mm and 1,040 mm last stage buckets supporting both cooling tower and air-cooled condenser designs • Axial entry last stage buckets • ontinuous mid-span and tip coupling for C aeromechanical damping

fact sheet • Single-side exhaust providing a reduced rotor train centerline • earings and shaft-end packing mounted directly on B foundation pedestals Product Characteristics • vailable supporting both Single Shaft (SS) and A Multi-Shaft (MS) applications • Power rating of 150 to 220 MW • 600°C HP/IP inlet temperature capability • 165 bar HP throttle pressure capability Benefits • tructured or customized solutions to fit the needs of S your power plant • ntegrated power island design with GE's gas turbine, HRSG, I and Balance of Plant (BOP) • Proven GE technology, experience, and reliability...