Full Content is available to subscribers

Subscribe/Learn More  >

Development of Brush Seal Technology for Steam Turbine Retrofit Applications

[+] Author Affiliations
Don Stephen, Simon I. Hogg

Alstom Power, Rugby, Warwickshire, UK

Paper No. IJPGC2003-40103, pp. 505-512; 8 pages
  • International Joint Power Generation Conference collocated with TurboExpo 2003
  • 2003 International Joint Power Generation Conference
  • Atlanta, Georgia, USA, June 16–19, 2003
  • Conference Sponsors: Power Division
  • ISBN: 0-7918-3692-4 | eISBN: 0-7918-3677-0
  • Copyright © 2003 by ASME


Increased cylinder efficiency is one of the main drivers in the steam turbine retrofit market, particularly for HP and IP modules. To-date most retrofit turbine suppliers have concentrated their efforts on improving the aerodynamic efficiency of blades and other steampath components, optimizing stage numbers and reducing leakage losses. Developments in all of these areas rely heavily on improved design and analysis tools to refine existing designs and evaluate new concepts. The opportunity exists to further reduce leakage losses by replacing conventional labyrinth seal designs by more advanced turbomachinery sealing technology. Brush seals, which have now been used successfully in some gas turbine (mainly aero-engines) applications for several years, are a natural candidate for steam turbine retrofits. Careful thought is needed when applying brush seals as the mechanical integrity of the cylinder needs to be maintained at all times. Attempts to increase performance should never be at the expense of availability and reliability. This paper describes the development work undertaken by the authors’ company and covers research in the areas of brush seal design, performance improvement, operational issues, and life assessment.

Copyright © 2003 by ASME
Topics: Steam turbines



Interactive Graphics


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

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