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File:A catechism on the combustion of coal and the prevention of smoke; a practical treatise (1900) (14596602797).jpg

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Identifier: catechismoncombu00barr (find matches)
Title: A catechism on the combustion of coal and the prevention of smoke; a practical treatise
Year: 1900 (1900s)
Authors: Barr, William M. (William Miller)
Subjects: Smoke prevention Combustion Coal
Publisher: New York, N. W. Henley & Company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image:
tion by means of a vacuum created by a revolving fanplaced beyond the uptake or in the breeching leading tothe chimney. In either case the air needed for combus-tion is supplied the fire through mechanical means andnot by natural draft. Q. What are the ordinary methods of application ofmechanical draft? The commonest method is by means of a centrifugalfan, or fan blower, by means of which the air needed forcombustion is forced through the fire. The air supply instationary boiler practice is usually forced into an air-tight ash pit, and as there is no other escape for the air itis forced through the fuel, and thus becomes a forceddraft. Another method, frequently employed on steam-ships, is to make the fire-room air tight and force the airinto it at such pressure and in such volume as may beneeded for the combustion of the fuel. A typical arrangement of the B. F. Sturtevant Com-panys steam fan for the production of under-grate-forceddraft is shown in Fig. 80. The fan discharges the air
Text Appearing After Image:
322 COMBUSTION OF COAL. into an underground-brick duct extending along the frontof the battery of boilers. From this duct smallerbranches, two to each boiler, extend to the ash pits, towhich the air is admitted in the requisite amount throughash-pit dampers of the type shown in Fig. 81. There is

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https://www.flickr.com/photos/internetarchivebookimages/14596602797/

Author Barr, William M. (William Miller)
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Flickr tags
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  • bookid:catechismoncombu00barr
  • bookyear:1900
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Barr__William_M___William_Miller_
  • booksubject:Smoke_prevention
  • booksubject:Combustion
  • booksubject:Coal
  • bookpublisher:New_York__N__W__Henley___Company
  • bookcontributor:The_Library_of_Congress
  • booksponsor:The_Library_of_Congress
  • bookleafnumber:326
  • bookcollection:library_of_congress
  • bookcollection:americana
Flickr posted date
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30 July 2014


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