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External Heat Transfer on a Shrouded HP Gas Turbine Stage

[+] Author Affiliations
Brian R. Haller

Siemens Industrial Turbomachinery, Lincoln, Lincolnshire, England

Mary A. Hilditch

QinetiQ, Farnborough, Hampshire, UK

Paper No. GT2007-27168, pp. 229-237; 9 pages
  • ASME Turbo Expo 2007: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2007, Parts A and B
  • Montreal, Canada, May 14–17, 2007
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4793-4 | eISBN: 0-7918-3796-3
  • Copyright © 2007 by ASME


A new, shrouded, high pressure turbine which was designed using a “Controlled Flow” philosophy has been tested in the Turbine Test Facility (TTF) at QinetiQ, Farnborough. Heat transfer results from this new design are reported along with turbine aerodynamics and unsteady static pressure on the rotor blade. This includes measurements on the HP shroud. The measurements are compared with 2D and 3D calculations of heat transfer. These are the first measurements and detailed predictions for this new turbine and provide a good indication of the “state-of-the-art”, i.e. where the designer can have confidence in the predictions and where further work is required.

Copyright © 2007 by ASME



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