ANSALDO ENERGIA Power Generation Solutions

Contract: ServolaClient: Elettra GLTType of supply contract: EPC ContractCountry: ItalyRepowering: BrownfieldService Agreement: LTSACommercial operation: 2001Configuration:200 MW (1+1) Multishaft syngas CCThe information contained in this publication is provided for illustrative purposesonly. Product descriptions and content may change in consideration of specific marketsituations. Ansaldo Energia may make changes to the descriptions provided atany time for technical or commercial reasons.GENGENGTSTHRSGCond.Main characteristicsPlant main featuresServola combined cycle power plant is a 1+1 configurationwith sea water surface condenser for electrical and thermalenergy production. The main feature to highlight of thisplant is that it is designed to fire waste gas from steel industrysuch as BFG (blast-furnace gas) and COG (coke-ovengas). These two fuels are burnt into the combustion chamberof the gas turbine together with natural gas.The BFG flow is of about 112000 Nm 3 /h and the COG flowis of about 19000 Nm 3 /h. The system is equipped with agas turbine model dedicated to this application with twocompressors on its axial line. Thanks to the solution adoptedthis plant has a CIP6 certification. Finally the plant candischarge industrial steam for cogeneration use.The most important benefit is the use, as fuel, of wastegas from steel industry, mixed with natural gas.Gas TurbineAE94.2K x 109 MW - 50 Hz including two stages: LP axialand HP centrifugal waste compressors (22 MW)Fuel: waste gas from steel industry (BFG and COG) mixedwith natural gasSteam Turbine1 x 70 MW - 50 HzHP: 76/9.2 bar - 517/285 °CGeneratorGT & compr.: WY21Z-073LLT - 141 MVA - 15 kV - 50 Hz -air cooledST unit: WY18Z-066LLT - 94 MVA - 11.5 kV - 50 Hz -air cooledHeat Recovery Steam GeneratorThree pressure levels: HP level to feed the steam turbine;IP level to feed the steam turbine and/or for thecogeneration industrial; the third LP level is to dearatethe condensate flow.Cooling SystemSea water surface condenser16152 Genova - Via N. Lorenzi, 8 - ItalyPhone: +39 010 6551 - Fax: +39 010 655 6209E-mail: ansaldoenergia@aen.ansaldo.it - service2@aen.ansaldo.it - www.ansaldoenergia.it