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Analysis and Testing of Transient Pressures at Camp Far West Hydroelectric Project

by Chenchayya T. Bathala, Parsons Brinckerhoff Quade &, Douglas Inc, Sacramento, CA, USA,
Brian J. Van Weele, Parsons Brinckerhoff Quade &, Douglas Inc, Sacramento, CA, USA,
George Rummel, Parsons Brinckerhoff Quade &, Douglas Inc, Sacramento, CA, USA,



Document Type: Proceeding Paper

Part of: Waterpower '85

Abstract:

The objective of this paper is to present a comparative discussion of the results of theoretical analysis of transient pressures and of field tests performed on the Camp Far West Hydroelectric Project, located at the Camp Far West Dam and Reservoir on the Bear River in northern California. The hydropower project addition consists of a 6. 8 MW turbine/generator equipment including a gated, trashrack intake structure; a steel and concrete-lined power tunnel and a reinforced concrete powerhouse. Based on theoretical calculations and manufacturer's recommendations, a step-wise wicket gate operation was selected. On January 29, 1985, twelve load tests were performed on the turbine when the reservoir was full and the net head was approximately 155 feet The test results showed that the pressure rise and turbine speed increase were within the turbine manufacturer's specifications. The measured maximum waterhammer pressure of 101 psi was in close agreement with the theoretically calculated maximum, and was also within the maximum allowable pressure for the 8 ft. diameter, 3/8-in thick, open penstock connecting the tunnel portal and spiral case.

Subject Headings: Transient response | Hydro power | Turbines | Load tests | Water pressure | Transient loads | Project management | California | United States

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