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.

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.


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.
References in periodicals archive ?
A "convincing argument" in favour of nuclear safety at the plant site for the local population and environment, he said, was a presentation on fishing competitions held at the cooling pond of unit 5 and annual stocking of the surrounding waters with fish.
The CCP organization will oversee ash basin facility improvements that the company identified in a comprehensive review of the system, provide oversight of wastewater and cooling pond maintenance, and manage beneficial re-use opportunities for coal ash and synthetic gypsum.
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.
There was no cooling pond, so condensing water was pumped into cooling towers, also prominent features of the local landscape.
The leak was caused when a 15-foot crack appeared in a pipe leading to a cooling pond in the Sizewell A reactor in January 2007.
Building on the earlier successful solidification and stabilization of the Cooling Pond, MB2 Excavation and Construction jointly bid this project outside the set-aside framework and won.
We have peregrine falcons nesting on the stack and wetlands are being developed adjacent to the cooling pond," said Dr.
Elsewhere the garden offers everything from herbaceous borders to a cooling pond, a vegetable patch and shaded seating areas.
Engine & Generator 6,800,000 Gas Treating 160,000 Machine Building 144,000 Control Room 64,000 Foundation 48,000 Electric Cable 160,000 Dividing Chamber 32,000 Cooling Tower 120,000 Cooling Pond 50,000 Cooling Piping 48,000 Cooling Pump 40,000 Installation 160,000 Step-up Transformer 200,000 High-Tension-Switch 40,000 Others 80,000 Total 8,146,000