Steam-boiler Practice: In Its Relation to Fuels and Their Combustion and the Economic Results Obtained with Various Methods and Devices |
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Common terms and phrases
acid air required air-supply amount of air Analysis anthracite coal ash-pit atmosphere average bagasse bituminous coal buckwheat burned calculated calorific value calorimeter carbonic acid carbonic oxide cent chimney column composition cost cubic foot D. K. Clark decreased density determined dry coal economizer Engineers escaping gases evaporated per pound evident excess of air Fahr feed-water fire flue-gases foot of grate formula furnace given heat of combustion Heat Value heat-value heating-surface Hoadley horse-power hydrogen inches of water increased indicated Lignite loss mechanical draft mechanical stoker moisture morocco necessary Nitrogen ordinary oxygen pound of carbon pound of coal pound of fuel pounds of water practically presented in Table pressure pressure-difference produced proportion quantity rate of combustion ratio reduced relative resistance shown square foot steam steam-boiler stoker supplied surface surface-ratio temperature tests theoretical tion total heat tubes velocity volume of air Warm-blast water evaporated
Popular passages
Page 12 - Law. — The temperature remaining the same, the volume of a given quantity of gas varies inversely as the pressure.
Page 280 - In all trials made to ascertain maximum economy or capacity, the conditions should be maintained uniformly constant. Arrangements should be made to dispose of the steam so that the rate of evaporation may be kept the same from beginning to end. This may be accomplished in a single boiler by carrying the steam through a waste steam pipe, the discharge from which can be regulated as desired.
Page 278 - The conditions of the boiler and furnace in all respects should be, as nearly as possible, the same at the end as at the beginning of the test. The steam pressure should be the same; the...
Page 277 - Clearfield (Pa.), Cumberland (Md.), and Pocahontas (Va.) coals are thus regarded. West of the Allegheny Mountains, Pocahontas (Va.) and New River (W. Va.) semi-bituminous, and Youghiogheny or Pittsburg bituminous coals are recognized as standards.* There is no special grade of coal mined in the Western States which is widely recognized as of superior quality or considered as a standard coal for boiler testing. Big Muddy lump, an Illinois coal...