Revisiting a runner cavitation repair job

Journal Article · Wed May 01 00:00:00 EDT 1996 · Hydro Review

OSTI ID:376804

Witman, J K ^[1]

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1. Pennsylvania Power & Light Co., Holtwood, PA (United States)

This article reviews the efforts to repair turbine runner cavitation damage. The particular runner was originally repaired in 1990 with the application of a layer of beaded epoxy to areas of severe cavitation on the suction side of the blades on the upper runner. A year later, the runner was inspected, with no damage to the epoxy. In June of 1994, the runner was again inspected, and this and the most recent inspection shows that the epoxy coating is holding up well. The last inspection did show the beginnings on some erosion of the repair material. Based on this long-term series of inspections, maintenance recommendations are set forth.

• OSTI ID: 376804
• Journal Information: Hydro Review, Journal Name: Hydro Review Journal Issue: 3 Vol. 15; ISSN HYREE8; ISSN 0884-0385
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
CAVITATION
HYDRAULIC TURBINES
HYDROELECTRIC POWER PLANTS
MAINTENANCE
PROTECTIVE COATINGS
TURBINE BLADES