In Situ Francis Turbine Blade Replacement due to Gross Cavitation
In Situ Francis Turbine Blade Replacement due to Gross Cavitation
In Situ Francis Turbine Blade Replacement due to Gross Cavitation
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Repair Results and Conclusions<br />
• Welding repairs <strong>to</strong> both downstream and upstream runners<br />
have proven very successful res<strong>to</strong>ring structure integrity, blade<br />
thickness, profile and fairness<br />
• While still a blend of old and new repairs, the surface area of<br />
quality weld material has substantially increased particularly in<br />
areas prone <strong>to</strong> cavitation<br />
• All major structural defects have been repaired<br />
• All cavitation has been removed<br />
• The removal and replacement of blades worked according <strong>to</strong><br />
planned procedure without issues<br />
<strong>In</strong> <strong>Situ</strong> <strong>Francis</strong> turbine <strong>Blade</strong> <strong>Replacement</strong> | NWHA Hood River| 2013-05-23<br />
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