Waste-Heat Boiler

waste-heat boiler

[′wāst ¦hēt ′bȯi·lər]
(chemical engineering)
A heat-retrieval unit using hot by-product gas or oil from chemical processes; used to produce steam in a boiler-type system. Also known as gas-tube boiler.
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 It might be outdated or ideologically biased.

Waste-Heat Boiler


a boiler without its own firebox, which uses the heat of waste gases from industrial or power equipment. The temperature of gases entering a waste-heat boiler is 350°-400°C (in the case of a boiler installed behind an internal-combustion engine) to 900°−1500°C (if it is installed behind a reverberatory or refining furnace or a cement kiln). Large waste-heat boilers are equipped with all components of a boiler unit, with the exception of the firebox and other equipment associated with fuel combustion. For low outputs and pressures, waste-heat boilers with gas tubes are used; they may have multiple forced circulation or, less frequently, natural circulation and a direct-flow separator or drum design. Waste-heat boilers for heating water are usually called utilization economizers or pre-heaters. In some cases waste-heat boilers are integrated with other components of technical equipment to such a degree that they are no longer a separate unit (for example, evaporative cooling equipment for open-hearth furnaces and chemical installations). Waste-heat boilers are widely used in the chemical, petroleum, food, and textile industries.


Kotly-utilizatory martenovskikh pechei. Moscow, 1957.
Kotly-utilizatory i energo-tekhnologicheskie agregaty: Katalog-spravochnik. Moscow, 1969.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
There are several reasons including the high cost of a suitable gas turbine liquid fuel; the premium on engine-room space for a HRSG waste-heat boiler which must be contained below water level; and the lack of trained operators, given the decline in marine steam turbine drive for cargo or passenger ships.
It has set up a new manufacturing unit in Kandla (Gujarat) for manufacturing high-pressure vessels, heat exchangers, and waste-heat boiler systems; this unit commenced operations in November 2010.
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The off-gas will be cooled in a waste-heat boiler and cleaned by electrostatic precipitation.