124-1 Francis Turbine Exit Stay App.

Category

Planning & Design

Description

An Exit Stay Apparatus (ESA) is to eliminate the central vortex rope in the Francis turbine, increase the energy efficiency for off-peak regimes, and achieve reliable operation and a longer life expectancy for existing and new power plants.

Features & Advantages

  • To eliminate the central vortex rope, increase the energy efficiency at off-peak loads, reduce the pressure pulsation/instability, and achieve reliable operation.
  • To be incorporated into newly manufactured Francis turbines, or be reretrofitted into existing Francis turbines if draft tube cones are not embedded.

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Technology Owner

Natural Resources Canada — www.nrcan-rncan.gc.ca

Country

Canada

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124-1-Francis-Turbine-improved-by-Exit-Stay-Apparatus