Cogeneration

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cogeneration

[‚kō‚jen·ə′rā·shən]
(mechanical engineering)
The simultaneous on-site generation of electric energy and process steam or heat from the same plant.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Cogeneration

The simultaneous production of electrical or mechanical energy (power) and useful thermal energy from the same fuel/energy source such as oil, coal, gas, biomass, or solar panels. Conventionally, heat is emitted through cooling towers or flue gas is lost, but cogeneration makes use of that heat. A cogeneration plant is often referred to as a combined heat and power plant.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

Cogeneration

The sequential production of electricity and thermal energy in the form of heat or steam, or useful mechanical work, such as shaft power, from the same fuel source. Cogeneration projects are typically represented by two basic types of power cycles, topping or bottoming. The topping cycle has the widest industrial application.

The topping cycle utilizes the primary energy source to generate electrical or mechanical power. Then the rejected heat, in the form of useful thermal energy, is supplied to the process. The cycle consists of a combustion turbine-generator, with the turbine exhaust gases directed into a waste-heat-recovery boiler that converts the exhaust gas heat into steam which drives a steam turbine, extracting steam to the process while driving an electric generator. This cycle is commonly referred to as a combined cycle arrangement. Combustion turbine-generators, steam turbine-generator sets, and reciprocating internal-combustion-engine generators are representative of the major equipment components utilized in a topping cycle. See Generator, Steam turbine, Turbine

A bottoming cycle has the primary energy source applied to a useful heating process. The reject heat from the process is then used to generate electrical power. The typical bottoming cycle directs waste heat from a process to a waste-heat-recovery boiler that converts this thermal energy to steam which is supplied to a steam turbine, extracting steam to the process and also generating electrical power. See Electric power generation

Cogeneration for building and district space heating and cooling purposes consists of producing electricity and sequentially utilizing useful energy in the form of steam, hot water, or direct exhaust gases. The two most common heating, ventilating, and air-conditioning cycles are the vapor compression cycle and the absorption cycle. See Air conditioning, Central heating and cooling

McGraw-Hill Concise Encyclopedia of Engineering. © 2002 by The McGraw-Hill Companies, Inc.

cogeneration

In a building, the on-site electric power generation utilizing both the electrical power and steam or hot water which is developed; in some municipalities in the US, if excess electrical power is generated, it may be sold to the utility.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
This can sometimes be rectified by ensuring other heat sources, such as boilers, are allowing the CHP to take the lead in the controls strategy.
A CHP prioritised control system will keep gas costs down, and will help keep CHP systems running for as long as possible allowing the returns that cogeneration is designed for.
* The Maine Army National Guard operates the Aviation Support Facility in Bangor, ME, where its CHP system includes a natural gas-fired internal combustion engine generator that produces up to 75 kW of electricity.
* The University of Maryland Upper Chesapeake Medical Center in Bel Air, MD, utilizes a CHP system that includes a 2 MW natural gas-fired internal combustion engine and a 350-ton absorption chiller.
When asked whether AtatE-rk's portrait was really taken down or not, Kylycdaroy-lu highlighted that it is not possible for a CHP deputy to engage in such an act.
Any person who takes down a portrait of AtatE-rk cannot even enter through the CHP's back door, but I don't think such thing ever happened.
The CHP focuses on seven basic topics in its political, economic, social and cultural framework.
During the fast pace run toward June 7, the CHP was almost fully focused on the economy and prioritized social-oriented solutions in its election campaign.
* CHP Design & Installation: Develop an understanding of YANMAR CHP installation conditions for electrical and thermal site design and installation.
* CHP Service Tool: Develop a working knowledge of the operation of YANMAR CHP Service tools (how to use the PC Checker, Remote Monitoring System and Software Update Tool).
CHP is the process of capturing heat from existing heat sources,
A representative of CHP says the post-merged firm will supply half-wet pulp to YFY, helping CHP to cut cost in pulp-drying and accelerate fine-paper making by YFY, hence achieving mutual cost saving.