CALCULATED THEORETICAL AMOUNT OF AIR
REQUIRED PER POUND OF VARIOUS FUELS
____________________________________________________________
| |Weight of Constituents in One |Air Required|
| Fuel |Pound Dry Fuel |per Pound |
| |______________________________|of Fuel |
| | Carbon | Hydrogen| Oxygen |Pounds |
| | Per Cent| Per Cent| Per Cent | |
|________________|_________|_________|__________|____________|
|Coke | 94.0 | . | . | 10.8 |
|Anthracite Coal | 91.5 | 3.5 | 2.6 | 11.7 |
|Bituminous Coal | 87.0 | 5.0 | 4.0 | 11.6 |
|Lignite | 70.0 | 5.0 | 20.0 | 8.9 |
|Wood | 50.0 | 6.0 | 43.5 | 6.0 |
|Oil | 85.0 | 13.0 | 1.0 | 14.3 |
|________________|_________|_________|__________|____________|
[Illustration: 4064 HORSE-POWER Installation of Babcock & Wilcox Boilers
and Superheaters, Equipped with Babcock & Wilcox Chain Grate Stokers, at
the Cosmopolitan Electric Co., Chicago, Ill.]