AE64.3A GAs TuRBINE

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AE64.3A - High efficiencyfor medium sized plantsThe high technology AE64.3A model combinesF-Class efficiency with a mid-size package suitablefor phased, low-investment capacity expansionplans. It is also ideally suited to customerswho need to combine reliable and efficient electricpower generation with cogeneration and districtheating. The availability of different fuels can alsobe accommodated, while ensuring very stableand reliable operation (both gaseous and liquidfuels can be used and fuels can be switched fromgaseous to liquid fuel and vice versa).A proven layout for a reliable engine• Compressor cold-end drive• Compressor with variable inlet guide vanes• Disk-type rotor with two bearings• Annular type combustion chamber lined withindividually replaceable metallic heat shields• 24 hybrid burners (premix operation) for naturalgas and light oil• High mass flow compressor• Axial exhaust• Aerodynamically optimized turbine exhaust• Turbine blades/vanes with advanced coatingand Thermal Barrier Coating (TBC)• Easy maintenance features (all blades andvanes are replaceable with rotor in place, andthe hot gas path can be inspected with no needto open the turbine)Performance (natural gas, ISO conditions, base load)AE64.3APower output at generator terminals[MW]75Efficiency at generator terminals [%]35.9Exhaust gas mass flowExhaust gas temperature[kg/s][°C]213574AE64.3A Gas Turbine bodyThe characteristics of the AE64.3A gas turbineaddress all the main market drivers for mid-sizepower plants: low environmental impact, operatingflexibility, high performance levels achieved incombined cycles and short plant delivery times.1 GT + 1 ST Combined cycle power output [MW]1 GT + 1 ST Combined cycle efficiency [%]2 GT + 1 ST Combined cycle power output [MW]2 GT + 1 ST Combined cycle efficiency [%]111.753.8223.753.8
AE64.3A Gas Turbine combustion chamber tiles and turbine bladesA quick-start Gas Turbine for more flexibilityAnsaldo Energia’s AE64.3A is a quick start gasturbine: full speed is reached in less than 5 minutesand baseload conditions about 20 minuteslater. Fast-loading gradient procedures can reducethis time to about 15 minutes.The AE64.3A was the first annular gas turbine inthe world to be operated in fuel gas premix modeacross the entire load range, including GT run upto full speed no load. This important achievementsignificantly improves operations, because it greatlysimplifies the management of load rejectionand transient modes in general, as well as improvingthe ability to provide grid support from anyload. For these reasons, fuel gas premix modehas been extended to the entire annular fleet, includingboth AE64.3A and AE94.3A models.Addressing a growing need for fuel flexibility, thegas turbine can be fired with different fuels: bothnatural gas and liquid fuel oils can be used.The fuel switch from gaseous to liquid, and viceversa, can be performed very reliably in the midto-highload range.A specifically redesigned onboard fuel distributionsystem with flexible hoses ensures operationaland layout optimization, reduces erection andcommissioning times and improves maintainabilityLow emissions for challenging targetsRecognised excellence in commissioning andafter sales servicesAnsaldo Energia offers a full range of services andqualified personnel for erection and/or supervision,start-up and testing of your AE64.3A gas turbine.The availability of standard arrangements and insome cases packaged solutions ensures rapid,problem-free erection, start-up and commissioning.The Ansaldo Energia Service Organisation providestechnical assistance services worldwide, available24 hours a day, 7 days a week, in the fields of maintenance,spare parts supply and preventive maintenanceprograms, so ensuring that customers are inthe best position to achieve optimum operation.Continuous process improvements guarantee thebest assistance for our customers: for example, thelatest maintenance procedures include extendedspare parts stocks and streamlined logistics.Proud of our worldwide references - decades ofexperience:Our AE64.3A gas turbines, and the previous AE/V64.3version, are installed worldwide and have anexcellent track record of robustness, operationalflexibility and durability.1,600,0001,400,0001,200,0001,000,000800,000600,000400,000200,0001995AE64.3A & AE/V64.3 CumulativeEquivalent Operating Hours1997Dec. 2011: 1 500 000 EOH199920002001Years2003200520072011AE64.3AFUEL GASPREMIXDRYPREMIXDRYFUEL OILDIFFUSION45% water/fuelNOx [mg/Nm 3 ] *50250 120CO [mg/Nm 3 ] *3030 30AE64.3A Gas Turbine package - typical arrangement* Dry gases, 15% O 2
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AE64.3A GAs TuRBINE

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