General Electric

7F-5 Gas Turbine Fact Sheet

To meet the increasingly dynamic operating demands of today’s global energy industry, power producers are looking for flexible, efficient and reliable technology to partner with renewables. As the world’s largest manufacturer of gas turbines, GE is uniquely positioned to bring this evolution of its F-class platform to meet customer demands for flexible cyclic operation by delivering power with advanced start-up and extended turndown capability, fast ramp rate, and low lifecycle costs in peaking, cyclic, and continuous operation.Advanced Proven Technology GE’s pioneering F-class technology comprises over 1,110 gas turbines in operation globally, accumulating over 45 million hours of reliable operation. With more than 20 years of proven field experience, GE’s 7F family of gas turbines is meeting the needs of power producers around the world. The 7F 5-series gas turbine, part of GE’s FlexEfficiency 60 Portfolio, is built on proven advancements to its inlet, compressor, combustion, and power turbine systems. Flexibility is enhanced by a proven 14-stage compressor with removable blades and three-dimensional aerodynamic airfoils for increased efficiency. The hybrid radial diffuser recovers static pressure for the proven Dry Low NOx (DLN) 2.6 combustion system for enhanced steady state and transient performance. Torque from the three-stage power turbine, based on GE’s proven 60 hertz advanced hot gas path technology, is transmitted through its proven rotor architecture. Technologies from GE’s vast power generation and aviation experience include aerodynamics, heat transfer, cooling and sealing, and materials technologies that are fully integrated with an advanced, model-based control system. Features and Benefits• Advanced 3D aerodynamic 14-stage compressor with super-finish airfoils delivers improved fuel efficiency with less long-term degradation• DLN 2.6 combustion system provides proven operating flexibility with turndown to 36% of gas turbine baseload, accommodating fuel composition variation while maintaining emissions guarantees• 3-stage advanced hot gas path using proven technology of the 7F 3-series gas turbine with advanced cooling and sealing technologies to improve efficiency and lifecycle costs• GE’s proprietary Mark* VIe model-based control system enhances performance and increases operational flexibility• The 7F 5-series gas turbine fuel flexibility offers operation on a wide range of natural gas or distillate fuel, allowing operators higher availability during gas supply disruptions• Simplified air-cooled architecture combined with proven materials provide the lowest lifecycle cost in its classfact sheet7F 5-Series Gas TurbineProduct of GE's FlexEfficiency* PortfolioRight-sized, reliable for lifecycle cost advantageThe 7F 5-Series Gas Turbine Demonstrates Flexibility in the Following Key Areas:• Efficiency: Greater than 59% in combined cycle• Start Capability: 11 minutes to baseload• Ramp Rate: 40 MW/minute per gas turbine within emissions guarantees• Minimum Load: Turndown to 36% of gas turbine baseload• Emissions: 2 ppm NOx and CO in combined cycle with Selective Catalytic Reduction (SCR) and CO catalystField Proven and Full-Speed, Full-Load Factory TestedWith more than 800 7F gas turbines operating in the field providing over 29 million fired hours and 700 thousand fired starts, 60 hertz customers around the world have come to rely on the proven reliability and availability of GE’s 7F gas turbines.The 7F 5-series gas turbine has been validated at GE’s full-speed, full-load gas turbine validation test facility in Greenville, South Carolina, USA. This dual fuel, non-grid connected facility has the capability to test part loads, peak loads, variable frequency operation, and transient capability. The 7F 5-series gas turbine has met or exceeded GE’s validation requirements through extensive testing and operation.Normalized to Gas Turbine World conditionsBased on 2x1 multi-shaft FlexEfficiency 60 Combined Cycle Power Plant with selective catalytic reduction and CO catalyst.Applicability The 7F 5-series gas turbine has been developed for both 60 hertz cyclic and continuous operation in simple and combined cycle applications. To learn more about this offering, contact your GE Sales Representative or visit www.ge-flexibility.com Comparative statements refer to prior GE technology unless otherwise stated.*Trademark of General Electric Company© 2012 General Electric Company. All rights reserved.GEA20305 (09/2012)fact sheetNet gas turbine simple cycle output 216 MWNet gas turbine simple cycle efficiency Greater than 38.7%Gas turbine exhaust energy Greater than 1150 MMBtu/hour Net combined cycle efficiency Greater than 59% NOx emissions (at 15% O2) 2 ppm in combined cycle 9 ppm gas turbine onlyCO emissions 2 ppm in combined cycle 9 ppm gas turbine onlyGas turbine start time 11 minutes to baseloadGas turbine ramp rate 40 MW/minute per gas turbine within emissions guaranteesGas turbine minimum load Turndown to 36% of gas turbine baseload
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