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Hot-Gas-Path Life Extension Options for the V94.2 Gas Turbine

[+] Author Affiliations
Gerhard Bohrenkämper, Herbert Bals, Ursel Wrede

Siemens AG, Mülheim a.d.Ruhr, Germany

René Umlauft

Siemens AG, Berlin, Germany

Paper No. 2000-GT-0178, pp. V003T02A003; 10 pages
doi:10.1115/2000-GT-0178
From:
  • ASME Turbo Expo 2000: Power for Land, Sea, and Air
  • Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration
  • Munich, Germany, May 8–11, 2000
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7856-9
  • Copyright © 2000 by ASME

abstract

Gas turbine and combined cycle power plants are typically designed for a service life of over 30 years. If operated at base load in continuous duty, the gas turbine hot-gas-path components for example in a combined-cycle power plant need repair and replacement according to the maintenance program several times during plant life. Most of the hot components would reach the end of their service life, e.g. 100,000 equivalent operating hours (EOH), after 10 to 12 years. As this is well before the end of the overall plant service life defined in the power plant concept, such plant applications therefore necessitate life extension measures enabling to continuing operation beyond 100,000 EOH. This paper presents strategic options for hot-gas-path component life entension.

Copyright © 2000 by ASME

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