Development of a more fish tolerant turbine runner advanced hydropower turbine project. Final report

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Description

The Hidrostal pump is a single bladed combined screw/centrifugal pump which has been proven to transport fish with minimal injury. The focus of the ARL/NREC research project was to develop a new runner geometry which is effective in downstream fish passage and hydroelectric power generation. A flow of 1,000 cfs and a head in the range of 75 ft to 100 ft were selected for conceptual design of the new runner. Criteria relative to hydraulic characteristics which are favorable for fish passage were prepared based on a reassessment of the available information. Important criteria used to develop the new runner ... continued below

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172 p.

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Cook, T.C.; Hecker, G.E.; Faulkner, H.B. & Jansen, W. January 1, 1997.

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Description

The Hidrostal pump is a single bladed combined screw/centrifugal pump which has been proven to transport fish with minimal injury. The focus of the ARL/NREC research project was to develop a new runner geometry which is effective in downstream fish passage and hydroelectric power generation. A flow of 1,000 cfs and a head in the range of 75 ft to 100 ft were selected for conceptual design of the new runner. Criteria relative to hydraulic characteristics which are favorable for fish passage were prepared based on a reassessment of the available information. Important criteria used to develop the new runner design included low pressure change rates, minimum absolute pressures, and minimum shear. Other criteria which are reflected in the runner design are a minimum number of blades (only two), minimum total length of leading edges, and large flow passages. Flow characteristics of the new runner were analyzed using two- dimensional and three-dimensional Computational Fluid Dynamic (CFD) models. The basic runner geometry was initially selected using the two-dimensional model. The three-dimensional model was used to investigate the flow characteristics in detail through the entire runner and to refine the design by eliminating potential problem areas at the leading and trailing edges. Results of the analyses indicated that the runner has characteristics which should provide safe fish passage with an overall power efficiency of approximately 90%. The size of the new runner, which is larger than conventional turbine runners with the same design flow and head, will provide engineering, fabrication, and installation.challenges related to the turbine components and the civil works. A small reduction in the overall efficiency would reduce the size of the runner considerably, would simplify the turbine manufacturing operations, and would allow installation of the new turbine at more hydroelectric sites.

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172 p.

Notes

OSTI as DE97003054

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  • Other Information: PBD: Jan 1997

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  • Other: DE97003054
  • Report No.: DOE/ID/13383--T1
  • Grant Number: AC07-95ID13383
  • DOI: 10.2172/450034 | External Link
  • Office of Scientific & Technical Information Report Number: 450034
  • Archival Resource Key: ark:/67531/metadc676663

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  • January 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Nov. 13, 2015, 2:49 p.m.

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Cook, T.C.; Hecker, G.E.; Faulkner, H.B. & Jansen, W. Development of a more fish tolerant turbine runner advanced hydropower turbine project. Final report, report, January 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc676663/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.