File:Technical paper (1911) (14594549030).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(1,892 × 2,856 pixels, file size: 540 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English:

Identifier: technicalpaper139unit (find matches)
Title: Technical paper
Year: 1911 (1910s)
Authors: United States. Bureau of Mines
Subjects: Mines and mineral resources Mines and mineral resources
Publisher: Washington Govt. Print. Off.
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
Test 72Rate, 3 pounds \ \ / 12 \1 \ / A .o* (V)\€ i 8 / \ V i<& a\c o«^ f V s / \ 7s \ /f V ^ 1 \ . 1 \ \ 02 ^ - \ i C i 2 i 4 5 6 1 i 9 ) 0 ) 1 1 2 DISTANCE FROM SURFACE OF GRATE, INCHES Figure 6.-Composition of gases and temperature in 6-inch fuel bed of anthracite coal in a hand-firedexperimental furnace. Rates of combustion, 10,6, and 3 pounds of fuel per square foot of grate per hour. parison of figures 4 to 10 with similar figures in Technical Paper 137.aWith a 6-inch fuel bed, the oxygen in the air supplied through the a Kreisinger, Henry, Ovitz, F. K., and Augustine, C. £., Combustion in the fuel bed of hand-fired fur-naces: Tech. Paper 137, Bureau of Mines, 1916, pp. 39-44. RESULTS OF TESTS OF GROUP 1. 27 grate is almost all used up in the lowest 3 inches of the fuel bed byburning the carbon of the coal to C02, only a comparatively smallpercentage of CO being formed. At this point the C02 content ofthe gases rising through the fuel bed reaches a maximum of 14 to 16
Text Appearing After Image:
3456789 10DISTANCE FROM SURFACE OF GRATE, INCHES 11 12 FmuRE 7.—Composition of gases and temperature in 12-inch fuel bed of anthracite coal in a hand-firedexperimental furnace. Rates of combustion, 10,6, and 3 pounds of fuel per square foot of grate pec hour. per ccMit. As the gases flow through the upper layers of the fuel bedthe percentage of C02 drops and the percentage of CO increases rap-idly. This change indicates that as long as there is free oxygen thecarbon is oxidized to C02, but when the oxygen is used up, the COa 28 LOW-RATE COMBUSTION IN FUEL BEDS. acts as an oxidizing agent and is reduced to CO, which increasestwice as rapidly as C02 disappears. The zone of reduction of C02extends to near the surface of the fuel bed. Just within the top of

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14594549030/

Author United States. Bureau of Mines
Permission
(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Flickr tags
InfoField
  • bookid:technicalpaper139unit
  • bookyear:1911
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:United_States__Bureau_of_Mines
  • booksubject:Mines_and_mineral_resources
  • bookpublisher:Washington_Govt__Print__Off_
  • bookcontributor:Gerstein___University_of_Toronto
  • booksponsor:University_of_Toronto
  • bookleafnumber:26
  • bookcollection:gerstein
  • bookcollection:toronto
Flickr posted date
InfoField
30 July 2014


Licensing

[edit]
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.

Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14594549030. It was reviewed on 10 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

10 September 2015

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current10:43, 10 September 2015Thumbnail for version as of 10:43, 10 September 20151,892 × 2,856 (540 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': technicalpaper139unit ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Ftechnicalpaper139unit%2F find...

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Technical_paper_(1911)_(14594549030).jpg&oldid=593675464"