Penstock Rehabilitation

by Thomas L. Kahl, Kleinschmidt Associates, Pittsfield, United States,



Document Type: Proceeding Paper

Part of: Waterpower '91: A New View of Hydro Resources

Abstract:

The deterioration of aging penstocks is a common problem at many existing hydroelectric plants. A comprehensive understanding of the physical condition and functional limitations of an existing penstock, combined with an understanding of rehabilitation alternatives, can provide efficient and cost effective solutions. Repair and replacement are the two approaches that define penstock rehabilitation options. This paper presents the recent experiences of Kleinschmidt Associates on four penstock projects that illustrate each of these rehabilitation strategies. These examples involve low and medium head steel penstocks, which are the types of installation most frequently encountered in the northeastern United States.

Subject Headings: Conduits | Rehabilitation | Steel pipes | Hydro power | Head (fluid mechanics) | Water intakes | Power plants | United States

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