0

Full Content is available to subscribers

Subscribe/Learn More  >

Aerodynamic Concept for Very Large Steam Turbine Last Stages

[+] Author Affiliations
Heinrich Stüer, Frank Truckenmüller

Siemens PG, Mülheim an der Ruhr, Germany

Don Borthwick

Siemens PG, Newcastle upon Tyne, England, UK

John D. Denton

University of Cambridge, Cambridge, UK

Paper No. GT2005-68746, pp. 673-687; 15 pages
doi:10.1115/GT2005-68746
From:
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 6: Turbo Expo 2005, Parts A and B
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4730-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME

abstract

A move to ever larger low pressure steam turbines inevitably leads to an increase in the blade height to hub diameter ratio and the extent and magnitude of supersonic flow. This paper looks at the options available to the designer to mitigate the aerodynamic challenges associated with an increase in turbine size. Combinations of the effects of lean and sweep are explained using simple arguments based on flow field streamlines, then demonstrated in a stationary blade design by numerical and experimental methods. Developments in the principal regions of transonic and supersonic flow are shown by stationary blade hub and rotating blade tip examples. A stationary blade design which optimises the flow field effects shown is presented. The paper concludes by evaluating the unsteady flow in a very large final stage design.

Copyright © 2005 by ASME
Topics: Steam turbines

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