economizer

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Related to economiser: superheater, Air preheater

economizer

[ē′kän·ə‚miz·ər]
(engineering)
A reservoir in a continuous-flow oxygen system in which oxygen exhaled by the user is collected for recirculation in the system.
(mechanical engineering)
A forced-flow, once-through, convection-heat-transfer tube bank in which feedwater is raised in temperature on its way to the evaporating section of a steam boiler, thus lowering flue gas temperature, improving boiler efficiency, and saving fuel.
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 It might be outdated or ideologically biased.

Economizer

 

a component of a boiler unit. An economizer is a heat exchanger in which feed water is heated by flue gases before the water is supplied to the boiler. For a pressure of up to 22 kilograms-force per cm2 (2.2 megapascals) and a feed-water temperature below the dew point of the flue gases or for water that has not been deaerated, an economizer consisting of plain cast-iron tubes or of finned cast-iron tubes is used. For higher temperatures and pressures, an economizer consisting of steel tubes is used; most economizers of this type consist of plain steel tubes. An economizer increases the efficiency of a boiler unit.

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

economizer

economizer
Economizer/Re-breather.
economizerclick for a larger image
i. A reservoir in a continuous-flow oxygen system in which exhaled oxygen is collected for recirculation in the system. This way the consumption of oxygen is economized.
ii. The system of metering additional fuel in a carburetor or fuel injection system when the throttle is wide open. This additional fuel helps remove some of the heat when the engine is producing maximum power. The system provides an economical fuel-air mixture at all settings except at full power. Also called a power-enrichment system or a fuel economizer system.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Economisers for steam generators have been around for many years but few manufacturers offer economisers for thermal fluid heating systems and even fewer still provide integral economisers.
In fact, as greater savings are being sought in the health sector, the investment in retro-fit economisers is proving to be a prudent one.
Fulton's Economiser can be installed in all gas-fired RBC models at the build stage with no overall effect on footprint.
(200 9) carried out laboratory tests on an EVI machine (both air conditioning and heat pump applications) with R-410A as working fluid in both the capillary tube and flash tank and thermostatic expansion valves and economiser configuration.
Cette mesure vise egalement a economiser de l'energie a un moment oE le pays est affecte par des coupures de courant de plus en plus nombreuses et prolongees, et a des difficultes d'approvisionnement pour certains types de carburants.
The addition of the pre-stripper section increases capacity and improves final product quality since it allows physical refining of the oil, while the addition of a VHE Final Economiser reduces energy consumption while also improving product quality.
Un plan de cooperation avec le ministere de l'Electricite porte sur la substitution des lampes electriques ordinaires, a d'autres lampes a energie economique, pour ainsi economiser 25% de la consommation electrique.
Les syndicats denoncent les severes mesures budgetaires recemment decidees par la coalition de six partis engages dans la formation du nouveau gouvernement belge, pour economiser 11,3 milliards d'euros en 2012 afin de ramener le deficit budgetaire sous les 3% du PIB.
In the current market even smaller output boilers can achieve a sensible pay back when fitted with an economiser. The economiser recovers useful heat from the boiler exhaust gas which is used to preheat the boiler feedwater; this can increase boiler efficiency up to 95%.