TESTS ILLINOIS . 
STEAMING TESTS. 
Test 126, Illinois No. 15. Test 152, Illinois No. 15, washed. 
83 
Size as shipped, lump and egg. Size as used, 
over 1 inch, 20.5 per cent; \ inch to 1 inch, 25.9 per 
cent; J inch to |inch, 21.1 per cent; under \ inch, 
32.5 per cent. Duration of test, 9.88 hours. Kind 
of grate, plain. 
Size as shipped, lump and egg. Size as used, 
over 1 inch, 25.5 per cent; \ inch to 1 inch, 31.3 per 
cent; \ inch to \ inch, 21.8 per cent; under \ inch, 
21.4 per cent. Duration of test, 10.03 hours. 
Kind of grate, plain. 
MISCELLA N EOl'S ITEM S. 
Test 152. 
.B.T. U. per pound dry coal 
Heating value of coal 
Force of draft: 
Under stack damper inch water 
Above fire do. . 
Furnace temperature °F 
Dry coal used per square foot of grate surface, per hour pounds 
Equivalent water evaporated per square foot of water-heating surface, pe 
hour pounds 
Percentage of rated horsepower of boiler developed 
Water apparently evaporated per pound of coal as fired pounds 
Water evaporated from and at 212°F.: 
Per pound of coal as fired do.. 
Per pound of dry coal do.. 
Per pound of combustible do. . 
Efficiency of boiler, including grate per cent 
Coal as fired: 
Per indicated horsepower hour pounds 
Per electrical horsepower hour dq t . 
Dry coal: 
Per indicated horsepower hour do.. 
Per electrical horsepower hour do. . 
20.44 
3.11 
87.2 
5.94 
7.62 
9.49 
62.63 
4.12 
5.09 
3.71 
4.58 
13,104 
0.4G 
.13 
2,439 
19. 63 
3.36 
94.3 
6.51 
7.57 
8.59 
9.64 
63. 30 
3.74 
4.61 
3.29 
4.06 
ANALYSES. 
Proximate 
loisture 
/olatile matter 
"Ixed carbon 
\sh 
lulphur 
Test 126. 
Test 152. 
10.00 
11,81 
33.39 
37.09 
41.20 
42.69 
15.41 
8.41 
100.00 
100.00 
4.36 
3.00 
Ultimate 
Carbon « 
Hydrogen a 
Oxygen « 
Nitrogen a 
Sulphur 
Ash 
Test 126. Test 152 
100. 00 
63.78 
71.17 
4.43 
4.94 
8.70 
9.71 
1.12 
1.24 
4.85 
3.40 
17.12 
9.54 
100.00 
^Figured from car sample. 
