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ⓘ Cooling pond




Cooling pond
                                     

ⓘ Cooling pond

A cooling pond is a man-made body of water primarily formed for the purpose of storing heated water and/or supplying cooling water to a nearby power plant or industrial facility such as a petroleum refinery, pulp and paper mill, chemical plant, steel mill or smelter.

                                     

1. Overview

Cooling ponds are used where sufficient land is available, as an alternative to cooling towers or discharging of heated water to a nearby river or coastal bay, a process known as" once-through cooling.” The latter process can cause thermal pollution of the receiving waters. Cooling ponds are also sometimes used with air conditioning systems in large buildings as an alternative to cooling towers.

The pond receives thermal energy in the water from the plant’s condensers during the process of energy production and the thermal energy is then dissipated mainly through evaporation. Once the water has cooled in the pond, it is reused by the plant. New water is added to the system" make-up” water to replace the water lost through evaporation.

A 1970 research study published by the U.S. Environmental Protection Agency reported that cooling ponds have a lower overall electrical cost than cooling towers while providing the same benefits. The study concluded that a cooling pond will work optimally within 5 degrees Fahrenheit of natural water temperature with an area encompassing approximately 4 acres per megawatt of dissipated thermal energy.

                                     

2. Examples

  • Lake Anna is a cooling pond in Virginia, which provides cooling water for the North Anna Nuclear Generating Station. This pond has recreational uses such as fishing, swimming, boating, camping, and picnicking as well as being a cooling pond for the nuclear plant.
  • The Columbia Energy Center in Pacific, Wisconsin is a coal fired power plant with a capacity of 1000 MW. A dual cooling system is used for heat rejection that consists of a cooling pond and two cooling towers. The pond and towers are connected in a parallel arrangement to help dissipate thermal energy at expedited rates.
  • In 1994 the reactor at Yongbyon Nuclear Scientific Research Center, North Korea, was under U.S scrutiny and its nuclear fuel rods were taken out of the reactor and placed in the facilitys cooling pond. The fuel rods have since been removed.
  • The cooling pond at the Chernobyl Nuclear Power Plant Pripyat, Ukraine has abundant wildlife, despite the radiation present in the area. There are some accounts of wels catfish Silurus glanis growing up to 350 pounds and having a lifespan of up to 50 years in the area.
                                     
  • Deep water source cooling DWSC or deep water air cooling is a form of air cooling for process and comfort space cooling which uses a large body of naturally
  • LaSalle County, Illinois, United States. It is a man - made lake, built as a cooling pond for the LaSalle County Generating Station. LaSalle Lake State Fish and
  • gain prevention or by removing heat from the building natural cooling Natural cooling utilizes on - site energy, available from the natural environment
  • 526 ha in Grundy County, Illinois, United States. It is an artificial cooling pond originally excavated to enable the operation of the now defunct Collins
  • Pond Inlet Inuktitut: Mittimatalik, lit.  the place where the landing place is is a small, predominantly Inuit community in the Qikiqtaaluk Region of
  • States. A focus of this conservation area is Baldwin Lake, a perched cooling pond managed by the Illinois Department of Natural Resources for fishing.
  • 1965 on the Stony River in Grant County, West Virginia. It serves as a cooling pond for the Dominion 1.6 gigawatt Mount Storm Power Station, which provides
  • Westmoreland Prairie Resources. The Genesee cooling pond is an artificial pond covering 735 hectares 1, 820 acres The pond is topped up with water from the North
  • Sand Pond to Hancock Pond Hancock Pond is the largest pond of the Hancock Brook chain. The narrow - gauge railroad followed the east shore of the pond through

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