cogeneration

cogeneration
/koh'jen euh ray"sheuhn/, n. Energy.
utilization of the normally wasted heat energy produced by a power plant or industrial process, esp. to generate electricity.
[1975-80; CO- + GENERATION]

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In power systems, use of steam for both power generation and heating.

High-temperature, high-pressure steam from a boiler and superheater first passes through a turbine to produce power. It is exhausted at a temperature and pressure suitable for heating purposes, instead of being expanded in the turbine to the lowest possible pressure and then discharged to the condenser, which would waste the remaining energy in the steam. The steam at the higher pressure can provide large amounts of lower-temperature energy for heating buildings or evaporating brine in a chemical plant. Considerable overall energy savings can be obtained by cogeneration. See also steam engine.

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power
      in power systems, use of steam for both power generation and heating. High-temperature, high-pressure steam from a boiler and superheater first passes through a turbine to produce power (see steam engine). It then exhausts at a temperature and pressure suitable for heating purposes, instead of being expanded in the turbine to the lowest possible pressure and then discharged to the condenser, which would result in losing energy remaining in the steam. Steam discharged from the turbine at the medium pressure in cogeneration can provide large amounts of lower-temperature energy for such applications as heating buildings or processing food products. Considerable overall energy savings can be obtained by cogeneration.

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Universalium. 2010.

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Look at other dictionaries:

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  • cogeneration — noun Date: 1976 the production of electricity using waste heat (as in steam) from an industrial process or the use of steam from electric power generation as a source of heat • cogenerator noun …   New Collegiate Dictionary

  • cogeneration — noun a) The production of heat and/or power from the waste energy of an industrial process b) The simultaneous or serial production of heat and electricity from the same source …   Wiktionary

  • cogeneration — n. generation of electric power and heat using a combined system …   English contemporary dictionary

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