regenerator


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regenerator

[rē′jen·ə‚rād·ər]
(chemical engineering)
Device or system used to return a system or a component of it to full strength in a chemical process; examples are a furnace to burn carbon from a catalyst, a tower to wash impurities from clay, and a flush system to clean off the surface of filter media.
(electronics)
A circuit that repeatedly supplies current to a display or memory device to prevent data from decaying.
(mechanical engineering)
A device used with hot-air engines and gas-burning furnaces which transfers heat from effluent gases to incoming air or gas.
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 It might be outdated or ideologically biased.

Regenerator

 

in heat engineering, a device used to transfer heat by periodically bringing a heat-transfer agent into contact with the same surfaces of the device.

During contact with a hot heat-transfer agent, the walls of a regenerator are heated, and during contact with a cold heat-transfer agent, the walls are cooled, thereby heating the heat-transfer agent. Regenerators in which the heat-transfer agents are periodically reversed consist of several chambers filled with a checkerwork. Hot flue gases and air or gaseous fuel that are to be heated are introduced alternately into the chambers. In regenerators in which the heat-transfer agents are continuously being reversed, either the checkerwork alternately is brought into the sprinkling zone by the heat-transfer agents or the checkerwork is stationary and the air pipes placed within the gas chamber rotate.

Air is heated to 1000°-1200°C in regenerators in which heat-transfer agents are periodically reversed, while in regenerators in which there is a continuous reversal, air is heated to 400°C. The latter regenerators, however, are significantly more compact and economical.

REFERENCE

Regenerativnye vrashchaiushchiesia vozdukhopodogrevateli. Leningrad, 1971.

I. N. ROZENGAUZ

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

regenerator

(1) In communications, the same as a repeater.

(2) In electronics, a circuit that repeatedly supplies current to a memory or display device that continuously loses its charges or content.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Adjacent to this dehumidifying device is a heating device to heat the regenerator inlet air to a temperature much higher than the supply air.
Figure.9 shows the temperature variation within the regenerator when switching time changing from 15s to 30s.
However, the major limitation is that the state of desiccant at the inlet to the regenerator keeps changing with time, which is the scenario in a real application.
[Y.sub.r] = [V.sub.r]/[V.sub.se] for regenerator (10)
Titanium is one of the few metals that could be used in the high-temperature heat exchanger that supplies hot desiccant to the regenerator shown in Figure 3.
Multiple-effect regenerators use each unit of heat input to remove two or more units of latent heat from the desiccant solution in the regenerator, increasing the potential COP to more than one.
The gas passes back through the regenerator where it recovers much of the heat transferred in 2, heating up on its way to the expansion space.
The parameters required to design a packed desiccant regenerator for given inlet air conditions can be classified as: controlled parameters; input parameters and output parameters.
The weak solution then enters the regenerator and is concentrated by the hot dry air while the air is humidified at the same time.
In the TPL layer, a virtual link still corresponds to a transparent lightpath but the end nodes of transparent lightpaths cannot only be the transponders but also the 3R regenerators. For example, the end nodes of virtual link (AB) in the TPL layer are a transponder and a 3R regenerator.
Dr Murray based the Thermal Regenerator on the system used in power stations where heat from boiler flue gases was used to raise the temperature of incoming air.
In the energy conversion system of the nuclear reactor system, supercritical carbon dioxide is used as the circulating medium which requires multiple regenerator. If only one regenerator is used, because the low-pressure side of the regenerator's specific heat capacity is relatively small, the temperature rise of the high pressure side fluid will not be enough in the heat exchange, which would lead to a pinch point of the heat exchanger.

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