scholarly journals Annual development of gonads of pumpkinseed, Lepomis gibbosus (Actinopterygii: Perciformes: Centrarchidae) from a heated-water discharge canal of a power plant in the lower stretch of the Oder River, Poland

2014 ◽  
Vol 44 (2) ◽  
pp. 131-143 ◽  
Author(s):  
Józef Domagała ◽  
Lucyna Kirczuk ◽  
Katarzyna Dziewulska ◽  
Małgorzata Pilecka-Rapacz
Keyword(s):  
Power Plant ◽  
Water Discharge ◽  
Lepomis Gibbosus ◽  
Heated Water ◽  
Discharge Canal ◽  
Oder River

scholarly journals EAST RIVER BATTLE FOR SHEEN: SKIMMING AN OIL SHEEN IN A 3- TO 5-KNOT CURRENT

2001 ◽  
Vol 2001 (2) ◽  
pp. 1431-1434
Author(s):  
Dennis E. Connelly ◽  
Dennis J. McCarthy ◽  
John E. Westerlind
Keyword(s):  
New York ◽  
Current Flow ◽  
Discharge Rate ◽  
Water Discharge ◽  
Cooling Water ◽  
High Discharge ◽  
East River ◽  
Discharge Canal ◽  
High Discharge Rate ◽  
Set Up

ABSTRACT This paper explores the challenges involved with the recovery of oil from a discharge canal with limited access and high relative currents. In March 1999, a sheen was observed in the cooling water discharge canal of Consolidated Edison's 2.5-million kilowatt generating station in Queens (New York City), New York At the time the sheen was discovered, the entire station had been shut down for several months for a maintenance outage. As the tide rose and fell in the East River, into which the discharge canal emptied, the oil sheen moved in and out of a 1,000-foot long tunnel connecting the generating station to the canal. The major challenges to the recovery and removal of the oil sheen were: (1) the low over head of the discharge tunnel and canal support girders, which prevented getting a skimmer into the tunnel and canal; (2) the high discharge rate of the station's cooling water pump; and (3) skimming the sheen in a 3-to 5-knot current. Consolidated Edison is a member of Clean Harbors Cooperative, L.L.C, which was brought in to remove the sheen. This was accomplished utilizing two JBF Scientific DIP Belt Skimmers, which were set up parallel to the current flow, and deflection booming.

Optimal Control of Cooling Water Discharge from a Power Plant

1974 ◽  
Vol SMC-4 (6) ◽  
pp. 523-531
Author(s):  
Jie-Tsai Tseng ◽  
Liang-Tseng Fan ◽  
Ching-Lai Hwang
Keyword(s):  
Optimal Control ◽  
Power Plant ◽  
Water Discharge ◽  
Cooling Water

Effects of Warm Water Discharge from Sanmen Nuclear Power Plant on Filtration Behavior, Calcification Rate, and Ammonia Excretion of Razor Clam, Sinonovacula constricta: A Simulation Study

2014 ◽  
Vol 955-959 ◽  
pp. 356-359 ◽  
Author(s):  
Guang Xu Liu ◽  
Wen Yao Chen ◽  
Miao An Shu ◽  
Xin Guo Zhao ◽  
Chao Peng ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Water Discharge ◽  
Ammonia Excretion ◽  
Warm Water ◽  
Calcification Rate ◽  
Razor Clam ◽  
Increased Temperature ◽  
C 30

Warm water discharge from nuclear power plant will elevate the temperature of seawater and may subsequently have influences on important marine aquiculture bivalves. In present study, the effects of temperature elevation caused by warm water discharge on the filtration behavior, calcification rate, and ammonia excretion of a major local bivalve species, razor clam, were investigated via laboratory simulation. The results showed that the filtration rates of razor clam increased significantly with an increased temperature, which were 0.46±0.06, 0.62±0.09, and 0.85±0.08L/g·h for 28 °C, 30 °C, and 32 °C, respectively. Under the experimental temperature gradient, the pattern of calcification rates of razor clam was shown to be bell-shaped, with the highest calcification rate 2.85±0.28μmol/FWg·h at 30 °C. The ammonia excretion rates were shown to increase slightly with increased temperature, which were 0.31±0.03, 0.32±0.09, and 0.34±0.06mg/ g·h for 28 °C, 30 °C, and 32 °C, respectively. The results suggest that razor clam will increase its energy intake and metabolic rate to maintain a relatively constant growth rate under thermal stress within 4 oC range even during the summer season.

scholarly journals Feasibility Study on a Micro Hydro Power Plant at Coban Jahe Waterfall, Jabung, Malang Regency

2021 ◽  
Vol 6 (1) ◽  
pp. 41-52
Author(s):  
Sudarman Sudarman ◽  
Wahyu Guszolil ◽  
Daryono Daryono ◽  
Muhammad Lukman
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Feasibility Study ◽  
Financial Analysis ◽  
Water Discharge ◽  
Payback Period ◽  
Small Scale ◽  
Hydro Power ◽  
Tourist Attractions ◽  
Project Life

Micro Hydro Power (MHP) Plant is a small-scale power plant under 100 kW. Generally, MHP is built in a place that the electricity network has not touched. Many waterfalls in Taji Village are only used as tourist attractions. One of them is Coban Jahe waterfall which has a water discharge of 0.60567 m3/s in the dry season. Waterfall in Coban Jahe was used and planned as Micro Hydro Power Plant, it was called as MHP. Potential electric power generated from the MHP Coban Jahe Waterfall is 14.0368 kW with an effective head of 3.4742 m. The results show from the financial analysis, the construction of MHP is quite feasible with NPV of Rp. 45,676,769, BCR of 1.0852, which means it is feasible to be continued, the Payback Period is 9 years which does not exceed the project life, and the IRR obtained is 10,0087% which the projects are feasible and profitable to build.

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