Biological Assessment of the Advanced Turbine Design at Wanapum Dam, 2005

Dauble, Dennis D. ; Deng, Zhiqun ; Richmond, Marshall C. ; Moursund, Russell A. ; Carlson, Thomas J. ; Rakowski, Cynthia L. ; Duncan, Joanne P.

Pacific Northwest National Laboratory (U.S.)

关键词: Computational Fluid Dynamics;    Eyes;    Salmon;    Columbia River;    Dams;   

DOI  :  10.2172/917973
RP-ID  :  PNNL-16682
RP-ID  :  AC05-76RL01830
RP-ID  :  917973

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report summarizes the results of studies sponsored by the U.S. Department of Energy and conducted by Pacific Northwest National Laboratory to evaluate the biological performance (likelihood of injury to fish) from an advanced design turbine installed at Unit 8 of Wanapum Dam on the Columbia River in Washington State in 2005. PNNL studies included a novel dye technique to measure injury to juvenile fish in the field, an evaluation of blade-strike using both deterministic and stochastic models, and extended analysis of the response of the Sensor Fish Device to strike, pressure, and turbulence within the turbine system. Fluorescein dye was used to evaluate injuries to live fish passed through the advanced turbine and an existing turbine at two spill discharges (15 and 17 kcfs). Under most treatments the results were not significantly different for the two turbines, however, eye injury occurred in nearly 30% of fish passing through Unit 9 but in less than 10% of those passing through Unit 8 at 15 kcfs. Both deterministic and stochastic blade-strike models were applied for the original and new AHTS turbines. The modeled probabilities were compared to the Sensor Fish results (Carlson et al. 2006) and the biological studies using juvenile fish (Normandeau et al. 2005) under the same operational parameters. The new AHTS turbine had slightly higher modeled injury rates than the original turbine, but no statistical evidence to suggest that there is significant difference in blade-strike injury probabilities between the two turbines, which is consistent with the experiment results using Sensor Fish and juvenile fish. PNNL also conducted Sensor Fish studies at Wanapum Dam in 2005 concurrent with live fish studies. The probablility of severe collision events was similar for both turbine. The advanced turbine had a slightly lower probability of severe shear events but a slightly higher probability of slight shear.