Turbine Refurbishment

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CFD Model Testing •Turboinstitute - Ljubljana, Slovenia •CFD ModificationsTested: •Wicket Gate shape/rotation •Semi/full spherical Discharge Ring •Increased blade diameter •Draft Tube splitter vane •Strategic concrete in Draft Tube •Stay Vane shape 6
CFD Model Testing – Wicket Gate Shape/Rotation Existing New •New WG profile = no advantage •Rotation of the WG circle by 4.5° = increased efficiency, but not cost-effective 7
Page 1 and 2: Douglas County PUD Wells Dam Turbin
Page 3 and 4: Project Background • February 200
Page 5: Turbine Scope of Work •CFD and Sc
Page 9 and 10: Model Testing - Discharge Ring Incr
Page 11 and 12: CFD Model Testing - Draft Tube Spli
Page 13 and 14: CFD Model Testing - Stay Vane Exten
Page 15 and 16: Scale Model Testing - Strategic Con
Page 17 and 18: Turbine Disassembly & Inspection Bl
Page 19 and 20: Turbine Disassembly & Inspection Li
Page 21 and 22: Turbine Refurbishment - Blades How
Page 23 and 24: Turbine Refurbishment - Blades Blad
Page 25 and 26: Turbine Refurbishment - Linkages
Page 27 and 28: Turbine - Reassembly 27

Turbine Refurbishment

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