Design of Siphon Penstocks for Low Head Hydros

by Jey K. Jeyapalan, Univ of Wisconsin, Madison, WI, USA,
Terry L. Hampton, Univ of Wisconsin, Madison, WI, USA,

Document Type: Proceeding Paper

Part of: Water Power '87


Siphon penstocks have been designed and constructed at Jim Falls and Winter, Wisconsin at existing dams. Both hydropower projects are located on the Chippewa River. The design of these two projects involved the recognition of various types of anticipated hydraulic and structural loads and the use of design codes and finite element analysis. Both siphon penstocks were fabricated with A36 carbon steel and were supported at appropriate locations using either existing structures or newly designed concrete saddles. Both projects have been operating successfully since their installations in June and October, 1986. These projects provide precedent-setting design features for building siphon penstocks at other sites where low head hydropower units are planned, but at a lower cost than conventional penstocks.

Subject Headings: Siphons | Conduits | Head (fluid mechanics) | Building design | Steel structures | Hydraulic loads | Power plants | Finite element method | Wisconsin | United States

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