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Axial Compressor Overhaul: Part II — GE, Frame 7, Model EA

[+] Author Affiliations
Steve Ingistov

BP/WCC, Carson, CA

Paper No. GT2006-90698, pp. 751-758; 8 pages
doi:10.1115/GT2006-90698
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4239-8
  • Copyright © 2006 by ASME

abstract

This Paper is a follow up to Axial Compressor Overhaul Paper GT 2005-68378, Part I that was presented in Reno Nevada, June 2005. In addition to previously presented highlights of complete rotor overhaul, certain technical details vital to reliability of entire GT Unit, are added to ensure better GT Unit reliability. Built-up axial compressor rotors, such as a GE-fabricated, Frame No 7, Model EA GT, require thorough knowledge, experience and attention to the minute details. As this generation of CGT ages, a typical User of 7EA GT Units is facing a daunting task of replacing old blades and installing new blades into seasoned compressor wheels. This Paper deals with methods of securing the new blades into the old compressor and with problems encountered during the new blade installation.

Copyright © 2006 by ASME

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