0

Full Content is available to subscribers

Subscribe/Learn More  >

Thermal State Analysis of Industrial Gas Turbine Blades

[+] Author Affiliations
V. Vassiliev, P. Schnedler

ALSTOM (Switzerland), Ltd., Baden, Switzerland

V. Kostege, A. Trishkin

ALSTOM Power Uniturbo, Ltd., Moscow, Russia

Paper No. GT2005-68951, pp. 813-824; 12 pages
doi:10.1115/GT2005-68951
From:
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 3: Turbo Expo 2005, Parts A and B
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4726-8 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME

abstract

The correct prediction GT hot components metal temperatures is decisive for lifetime assessments including predictions of fatigue, creep, oxidation, and corrosion. For the lifetime assessments of new components (at design phase) the thermal analysis is usually based on empirical correlations and simplified calculation models. To mitigate the uncertainties of the models and boundary conditions broad safety margins are included in the calculations. Therefore, the lifetime predictions at design phase can deviate significantly from the real achievable life. Based on the results of testing, prototype and field experience the predictions can be improved by corrections of models. This paper describes the procedure for thermal state predictions of industrial turbine blades and calibration procedure based on tests and field experience. The calibration procedure comprises: • Analysis of field experience, including temperature mapping. • Correction of thermal design models. • Recalculation of thermal state for different conditions, and re -evaluation of lifetime. Such approach allows to mitigate the limited accuracy of today’s design technology and/or allows to develop the improvements measures (e.g. for service interval extension). The paper describes the separate models implemented in this approach, and provides the example of industrial GT blading analysis. On basis of this analysis the measures for service interval extension have been developed.

Copyright © 2005 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In