Central heating and cooling

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Central heating and cooling

The use of a single heating or cooling plant to serve a group of buildings, facilities, or even a complete community through a system of distribution pipework that feeds each structure or facility. Central heating plants are basically of two types: steam or hot-water, The latter type uses high-temperature hot water under pressure and has become the more usual because of its considerable advantages. Steam systems are only used today where there is a specific requirement for high-pressure steam. Central cooling plants utilize a central refrigeration plant with a chilled water distribution system serving the air-conditioning systems in each building or facility.

Advantages of a central heating or cooling plant over individual ones for each building or facility in a group include reduced labor cost, lower energy cost, less space requirement, and simpler maintenance. Central cooling plants, using conventional, electrically driven refrigeration compressors, have the advantage of utilizing bulk electric supply, at voltages as high as 13.5 kV, at wholesale rates. Additionally, their flexible load factor, resulting from load divergency in the various buildings served, results in major operating economies.

The disadvantages of a central heating plant concern mainly the maintenance of the distribution system where steam is used. Corrosion of the condensate water return lines shortens their life, and the steam drainage traps need particular attention. These disadvantages do not occur with high-temperature hot-water installations. See Air conditioning, Boiler, Refrigeration, Steam heating

References in periodicals archive ?
Three miles of underground pipe will link the climate-controlled stadium and the new exhibition hall to a new central heating and cooling plant capable of supplying enough energy to heat and cool the equivalent of 6,000 homes, during football games, rodeo roundups and other events.
International Comfort Products Corporation (USA) ("ICP") today announced that it will be the exclusive original equipment manufacturer of Kenmore brand residential, central heating and cooling equipment for Sears, Roebuck and Co.
Under the same contract, Honeywell will also manage the 15 central heating and cooling plants at the post, starting in April 2002.
Since the 1950's, central heating and cooling has been widely used in the south to control temperature and humidity.
All apartments include kitchenettes and private baths, individually controlled central heating and cooling and a 24-hour personal emergency response system.
The contract is to design, manufacture, construct and operate a central heating and cooling plant for Abdali development project, the new downtown of Amman, in association with Arab Towers Contracting Company (ATTCO).
22 (Petra)--Jordan District Energy (JDE) has recently signed a JOD 30 million agreement with ARANER, LLC, a leading American company specialized in heating and cooling systems in the Middle East to design, manufacture, construct and operate a central heating and cooling plant for Abdali development project, the new downtown of Amman,in collaboration with Arab Towers Contracting Company (ATTCO).
With the Fission Content Management System (CMS), Central Heating and Cooling has the ability to create, edit, and update an unlimited number of content pages from any computer with internet access at any time.
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