A chimney a structure for venting hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney, effect. The space inside a chimney is called a flue. Chimneys may be found in buildings, steam locomotives and ships. In the United States, the term smokestack (colloquially, stack) is also used when referring to locomotive chimneys or ship chimneys, and the term funnel can also be used.
The height of chimneys plays a role in their ability to transfer flue gases using stack effect, the dispersion of pollutants at higher altitude helps to ease down its influence on surroundings. In the case of chemically aggressive output, the tall chimney allows partial or complete self-neutralization of chemicals in the air before they reach the ground. The dispersion of pollutants over greater area reduces their concentrations in compliance with regulatory limits.
Other articles related to "chimney, chimneys":
... Chimney's toponym is derived Old English, meaning "Island of a man named Ceomma". 10th century to the mid 11th century, has been found west of Chimney Farm ... Chimney has been a small settlement since then ...
... seasoned oak) leaning against a chimney (logs are placed in a circle) ... The chimney consists of 4 wooden stakes held up by some rope ... by introducing some burning fuel into the chimney the logs burn very slowly (cold fire) and transform into charcoal in a period of 5 days' burning ...
1989 Guyed Mast Vijayanarayanam Dahanu Thermal Power Station's Chimney 275.3 metres (903 ft) 1995 Chimney Mumbai Chimney of Sagardighi Thermal Power Station 275 metres (902 ft ...
... The structure includes the Lost Arrow Spire Chimney route which is recognized in the historic climbing text Fifty Classic Climbs of North America ... The last two pitches of Lost Arrow Spire Chimney are called the Lost Arrow Spire Tip and completes the detached portion of the spire ... ascent was completed later that season by John Salathé and Ax Nelson via the Lost Arrow Spire Chimney ...
... A chimney is a conduit for exhausting combustion gases up into open air ... Chimney or Chimneys may also refer to Chimney (locomotive), specifically for chimneys fitted to railway locomotives Chimney, Oxfordshire, hamlet in England Chimney (sculpture), outside Riley Hospital for ...
Famous quotes containing the word chimney:
“I change, and so do women too;
But I reflectwhich women seldom do.
Tobacco is a filthy weed,
That from the devil doth proceed;
That drains your purse, that burns your clothes,
That makes a chimney of your nose.”
—Anonymous. Written on a Looking Glass, from Geoffrey Grigsons Faber Book of Epigrams and Epitaphs, Faber & Faber (1977)
“The house had gone to bring again
To the midnight sky a sunset glow.
Now the chimney was all of the house that stood,
Like a pistil after the petals go.”
—Robert Frost (18741963)
“No; we have been as usual asking the wrong question. It does not matter a hoot what the mockingbird on the chimney is singing.... The real and proper question is: Why is it beautiful?”
—Annie Dillard (b. 1945)