Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station
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.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Stone and Webster Engineering Corp., Boston, MA (United States)
- OSTI ID:
- 414839
- Report Number(s):
- EPRI-TR-106781; CONF-960857-; TRN: 96:006225-0028
- 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
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