Turbine‐Intake Fish‐Diversion System
Publication: Journal of Hydraulic Engineering
Volume 116, Issue 11
Abstract
The development of a fish‐diversion system to be used in the turbine intakes of the Wanapum and Priest Rapids developments on the Columbia River, in the state of Washington, is described. The system uses a passive‐bar screen, installed through the emergency gate well, to produce a flow pattern that deflects downstream‐migrating juvenile salmonids into the gate well for subsequent removal and bypass to below the dam. The system is based on laboratory model studies and field tests. The model studies provide data on the hydraulic performance of the system and result in an understanding of the hydraulic features of the technique, which can be a guide for future designs. The studies also serve as a guide to development of the structural design of the system. The design, field tested in 1986, 1987, and 1988, attains a fish‐guidance efficiency of about 68% with a minimal of descaling (removal of fish scales by abrasion).
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References
1.
Elder, R. A., Odgaard, A. J., Weitkamp, D., and Zeigler, D. (1987). “Development of turbine intake downstream migrant diversion screen.” Waterpower '87, Proc. of the Int. Conf. on Hydropower, ASCE, Portland, Oreg., 522–531.
2.
Farr, W. E. (1974). “Traveling screens for turbine intakes of hydroelectric dams.” Report No. 15 (Cooling Water Research Project), John Hopkins Univ., Baltimore, Md.
3.
Idelchik, I. E. (1986). Handbook of hydraulic resistance. Hemisphere Publishing Corp., Washington, D.C.
4.
Krcma, R. F., Farr, W. E., and Long, C. W. (1980). “Research to develop bar screens for guiding juvenile salmonids out of turbine intakes at low head dams on the Columbia and Snake Rivers, 1977–79.” National Oceanic and Atmospheric Admin., National Marine Fisheries Service, Northwest and Alaska Fisheries Center, Seattle, Wash.
5.
Odgaard, A. J., Cherian, M. P., and Elder, R. A. (1987). “Fish diversion in hydropower intake.” J. Hydr. Engrg., ASCE, 113(4), 505–519.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 116 • Issue 11 • November 1990
Pages: 1301 - 1316
Copyright
Copyright © 1990 ASCE.
History
Published online: Nov 1, 1990
Published in print: Nov 1990
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