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Ansaldo Energia AE64.3A Gas Turbine Upgrade

[+] Author Affiliations
Leonardo Torbidoni, Luca Abba

ASEN, Ansaldo Sviluppo Energia, Genoa, Italy

Paper No. GT2015-42733, pp. V003T08A008; 10 pages
  • ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
  • Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration
  • Montreal, Quebec, Canada, June 15–19, 2015
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5667-3
  • Copyright © 2015 by ASME


Ansaldo Energia AE64.3A gas turbine is especially effective in small to medium size applications such as grid support, co-generation and district heating applications due its F-class efficiency coupled with proven affordability, optimal size and low life cycle costs. This paper describes the latest AE64.3A gas turbine configuration that is now available. Technical features are presented in detail: the compressor and the hot-section turbine fourth stage have been directly derived from the AE94.3A F-class 310 MW size gas turbine design; the exhaust gas duct improved with profiled struts; the journal and axial-thrust bearing enhanced in performance; a two-steps secondary air optimization strategy for engine performance increase has led the upgrades of the air-cooled turbine stages, of the combustion chamber equipped with ceramic-tiles and of the high-temperature low-NOx burners. The specific burners which are capable of burning low-BTU gas with LHV down to 19 MJ/kg are also described. Finally the technical features of the turbine blades and vanes with maintenance intervals extended to 33’000 Equivalent Operating Hours are presented.

Copyright © 2015 by ASME
Topics: Gas turbines



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