| boiler | 1. One who boils. 2. A vessel in which any thing is boiled. The word boiler is a generic term covering a great variety of kettles, saucepans, clothes boilers, evaporators, coppers, retorts, etc. 3. <mechanics> A strong metallic vessel, usually of wrought iron plates riveted together, or a composite structure variously formed, in which steam is generated for driving engines, or for heating, cooking, or other purposes. The earliest steam boilers were usually spheres or sections of spheres, heated wholly from the outside. Watt used the wagon boiler (shaped like the top of a covered wagon) which is still used with low pressures. most of the boilers in present use may be classified as plain cylinder boilers, flue boilers, sectional and tubular boilers. Barrel of a boiler, the cylindrical part containing the flues. Boiler plate, Boiler iron, plate or rolled iron of about a quarter to a half inch in thickness, used for making boilers and tanks, for covering ships, etc. Cylinder boiler, one which consists of a single iron cylinder. Flue boilers are usually single shells containing a small number of large flues, through which the heat either passes from the fire or returns to the chimney, and sometimes containing a fire box inclosed by water. Locomotive boiler, a boiler which contains an inclosed fire box and a large number of small flues leading to the chimney. Multiflue boiler. Same as Tubular boiler, below. Sectional boiler, a boiler composed of a number of sections, which are usually of small capacity and similar to, and connected with, each other. By multiplication of the sections a boiler of any desired capacity can be built up. Tubular boiler, a boiler containing tubes which form flues, and are surrounded by the water contained in the boiler. Source: Websters Dictionary (01 Mar 1998) |
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| boiler horsepower | A measure of the maximum rate of heat energy output of a steam generator. One boiler horsepower equals 33,480 Btu/hr output in steam. (05 Dec 1998) |
| boilermaker's deafness | Sensorineural hearing loss due to overexposure to high intensity noise levels. Synonym: boilermaker's deafness, industrial deafness, occupational deafness. (05 Mar 2000) |
| recovery boiler | A pulp mill boiler in which lignin and spent cooking liquor (black liquor) is burned to generate steam. (05 Dec 1998) |
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| fluidised-bed boiler | A large, refractory-lined vessel with an air distribution member or plate in the bottom, a hot gas outlet in or near the top, and some provisions for introducing fuel. The fluidised bed is formed by blowing air up through a layer of inert particles (such as sand or limestone) at a rate that causes the particles to go into suspension and continuous motion. The super-hot bed material increased combustion efficiency by its direct dontact with the fuel. (05 Dec 1998) |
| boilermakers' d. |
noise-induced hearing loss in boilermakers.
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| boiler | sealed vessel where water is converted to steam |
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| boiler | a metal pot for stewing or boiling |
| boiler | thick plate iron used in the production of boilers |
| boiler | standard formulations uniformly found in certain types of legal documents or news stories |
| boiler | (British) a loose protective coverall or smock worn over ordinary clothing for dirty work |
| boiler | (British) a loose protective coverall or smock worn over ordinary clothing for dirty work |
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