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Competitive Model Testing for Replacement Runners at the Wells Hydroelectric Project

by J. M. Noda, Sverdrup Corp, San Francisco, CA, USA,
K. A. Pflueger, Sverdrup Corp, San Francisco, CA, USA,



Document Type: Proceeding Paper

Part of: Water Power '87

Abstract:

The Wells Hydroelectric Project, located on the Columbia River, contains ten Kaplan-type turbines, each rated at 123,000 HP (91,720 kW) at a net head of 64. 9 ft. (19. 8m). The plant has been in commercial operation since January, 1969. Due to extraordinary maintenance costs to maintain the runners, it was determined that replacing all ten runners would be most cost-effective. Final model tests were conducted at the independent testing laboratory between November 1985 through February 1986 to determine projected prototype efficiencies and capacities, and to perform cavitation and runaway speed tests. This paper is a continuation of a paper presented at Waterpower '85 under the identical title, and describes test conditions, evaluation criteria, results of the final tests, and the projected economic benefits for the Wells Hydroelectric Project.

Subject Headings: Hydro power | Project management | Wells (water) | Turbines | Hydrologic models | Hydraulic models | Benefit cost ratios

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