Cooling Pond


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cooling pond

[′kül·iŋ ‚pänd]
(chemical engineering)
Outdoor depression into which hot process water is pumped for purposes of cooling by evaporation, convection, and radiation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cooling Pond

 

a natural or artificial open reservoir used to cool the hot circulating water in the circulating water supply systems of steam power plants or industrial enterprises. The water is cooled in the pond chiefly through evaporation and convective heat transfer (water to air). The temperature of the cooled water depends on meteorological conditions—the temperature and humidity of the atmospheric air, the general cloud cover, and the wind speed—and on the temperature of the incoming hot water.

Cooling ponds are relatively simple to operate, and during the greater part of the year, especially in the winter, they can provide a lower water temperature than other coolers. With a cooling pond there is no need to lift the water to a substantial height, as, for example, with cooling towers; thus less electrical power is expended in driving the circulating pumps. A disadvantage is the relatively low specific heat transfer from the pond’s surface, a fact that necessitates the creation of a considerable surface area for the pond.

River floodplains that can be spanned by dams are used in the construction of cooling ponds, as are lakes and dike-enclosed areas outside of watercourses.

V. A. GLADKOV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

roof pond

A pond of water on a roof structure that cools a building by evaporation. Because the water increases the thermal mass of the building, it also increases the gain in solar energy, storing the absorbed energy during the day, when it is abundant, for later use.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Photos from the site provided to AP by Cape Fear River Watch, an environmental advocacy group, show cascades of gray-colored water spilling from at least two breaches at the landfill and flowing toward Sutton Lake, the plant's former cooling pond which is now used for public recreation, including fishing and boating.
Sutton Power Station outside Wilmington, North Carolina, and that contaminated runoff likely flowed into the power station's cooling pond, the report says.
Prof Barnham writes: "Discharging spent fuel twice as fast as the system was designed for may have led to cooling pond accidents that could damage the spent fuel cladding.
Duke spokeswoman Paige Sheehan said about 2,000 cubic yards (1,530 cubic meters) of ash were displaced at the Sutton Plant and that contaminated storm water likely flowed into the plant's cooling pond.
Duke assumes that the ash made its way into Sutton Lake, which the company built as a cooling pond and wastewater processing system adjacent to the river, spokeswoman Paige Sheehan said.
The team identified a concrete core taken from the structure of a nuclear fuel cooling pond contaminated with radioactive isotopes of caesium and strontium, located at the former Hunterston A, Magnox nuclear power station in Ayrshire, southwest Scotland.
Officials in suburban Will County prepared to siphon warm water from a nuclear power plant's cooling pond into the Kankakee River in hopes of melting ice that can jam the channel and push floodwaters over the banks.
Of the sites considered, the Elmendorf Power Plant cooling pond location offered a supply of clean well water, proximity to the brood stock in Ship Creek, and is ideal location for public visitation and education programs.
Visits to the cooling pond, tours through the streets of the deserted city of Pripyat, and feeding fish in the cooling pond are all activities that earn revenue for the government.
Not only was the town water expensive, but there was also a risk that adding so much outside water to the system would overfill it, with the possibility of spillage via an effluent pond to the main power station cooling pond, leading to unacceptable chemical content.