Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station

Ronafalvy, J P; Cheesman, R R; Matejek, W M

Title: Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station

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Abstract

This paper summarizes modifications made to the Salem Generating Station`s (Salem) Circulating Water Traveling Screens (CWTS) as required by Salem`s New Jersey Pollutant Discharge Elimination System Permit (NJPDES Permit). The modifications incorporated newly designed CWTS baskets with hydrodynamically improved fish buckets (greatly reduced turbulence in the bucket); smooth woven mesh screens with 0.250 x 0.500 inch rectangular mesh openings (formerly 0.375 inch square mesh openings); lighter composite basket frame material allowing increased screen rotation speed; improved low and high pressure spray wash patterns; improved screen to sluice trough flap seal design and miscellaneous reliability improvements. In order to address the overall effects of the CWTS modifications on fish losses, the effect of both entrainment and impingement by fish size was addressed in a comparison study between modified and unmodified units. The results of the assessment indicate a 51% reduction in overall weakfish (Cynoscion regales) losses (expressed as equivalent adults, larger than 187 mm total length individuals). These modifications also enhanced debris removal capability of the CWTSs. 5 refs., 5 figs.

Authors:: Ronafalvy, J P; Cheesman, R R; Matejek, W M

Publication Date:: Thu Aug 01 00:00:00 EDT 1996

Research Org.:: Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Stone and Webster Engineering Corp., Boston, MA (United States)

OSTI Identifier:: 414839

Report Number(s):: EPRI-TR-106781; CONF-960857-
TRN: 96:006225-0028

Resource Type:: Technical Report

Resource Relation:: Conference: Condenser technology seminar and conference, Boston, MA (United States), 26-30 Aug 1996; Other Information: PBD: Aug 1996; Related Information: Is Part Of Proceedings: Condenser technology conference; Tsou, J.L.; Mussalli, Y.G. [eds.]; PB: 463 p.

Country of Publication:: United States

Language:: English

Subject:: 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; SALEM-1 REACTOR; CIRCULATING SYSTEMS; SALEM-2 REACTOR; SCREENS; FISHES; SURVIVAL CURVES; INTAKE STRUCTURES; ONCE-THROUGH COOLING SYSTEMS; DELAWARE RIVER; POLLUTION REGULATIONS

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                    Ronafalvy, J P, Cheesman, R R, and Matejek, W M. Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station.  United States: N. p., 1996. 
        Web.

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                    Ronafalvy, J P, Cheesman, R R, & Matejek, W M. Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station.  United States.

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                    Ronafalvy, J P, Cheesman, R R, and Matejek, W M. 1996.  
        "Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station".  United States.

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@article{osti_414839,

  title        = {Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station},

  author       = {Ronafalvy, J P and Cheesman, R R and Matejek, W M},

  abstractNote = {This paper summarizes modifications made to the Salem Generating Station`s (Salem) Circulating Water Traveling Screens (CWTS) as required by Salem`s New Jersey Pollutant Discharge Elimination System Permit (NJPDES Permit). The modifications incorporated newly designed CWTS baskets with hydrodynamically improved fish buckets (greatly reduced turbulence in the bucket); smooth woven mesh screens with 0.250 x 0.500 inch rectangular mesh openings (formerly 0.375 inch square mesh openings); lighter composite basket frame material allowing increased screen rotation speed; improved low and high pressure spray wash patterns; improved screen to sluice trough flap seal design and miscellaneous reliability improvements. In order to address the overall effects of the CWTS modifications on fish losses, the effect of both entrainment and impingement by fish size was addressed in a comparison study between modified and unmodified units. The results of the assessment indicate a 51% reduction in overall weakfish (Cynoscion regales) losses (expressed as equivalent adults, larger than 187 mm total length individuals). These modifications also enhanced debris removal capability of the CWTSs. 5 refs., 5 figs.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/414839},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Aug 01 00:00:00 EDT 1996},

  month        = {Thu Aug 01 00:00:00 EDT 1996}

}

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