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On the Importance of Adaptive Control in Extraction/Condensing Turbines

[+] Author Affiliations
Piotr Lampart

Polish Academy of Sciences – Gdańsk, Gdańsk, Poland

Romuald Puzyrewski

Technical University of Gdańsk, Gdańsk, Poland

Paper No. GT2006-91160, pp. 893-901; 9 pages
doi:10.1115/GT2006-91160
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4239-8
  • Copyright © 2006 by ASME

abstract

Adaptive control in low-pressure (LP) steam turbines is applicable to the conditions of steam extraction, leading to significant gains in flow efficiency and turbine power. This paper summarizes the importance of adaptive control, making a set of computations based on the model of adaptive stage with adjustable nozzle blades that can adapt the geometry of the blading system to the changing flow conditions. An increase of turbine efficiency and power coming from adaptive control is estimated for a group of two exit stages of an extraction/condensing turbine of power 60 MW. The calculations are made with the help of a computer code FlowER — a 3D solver of turbomachinery flows based on Reynolds-averaged Navier-Stokes (RANS) equations for perfect gas.

Copyright © 2006 by ASME

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