58 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
STEAMING TESTS. 
Test 122, Illinois No. 7 C. 
Size as shipped, slack. Size as used, \ inch to 1 
inch, 12.8 per cent; \ inch to \ inch, 18.3 per cent; 
under \ inch, 68.9 per cent. Duration of test, 10.07 
hours. Kind of grate, rocking. 
Test 129, Illinois No. 7 C. 
Size as shipped, slack. Size as used, \ inch to 1 
inch, 10.46 per cent; \ inch to \ inch, 25.50 per cent; 
under \ inch, 64.04 per cent. Washed. Duration 
of test, 8.35 hours. Kind of grate, plain. 
Test 142, Illinois No. 7 D. 
Size as shipped, run of mine. Size as used, over 
1 inch, 33.5 per cent; \ inch to 1 inch, 23.3 per cent; 
\ inch to \ inch, 15.0 per cent; under \ inch, 28.2 
per cent. Duration of test, 10.02 hours. Kind of 
grate, plain. 
Test 143, Illinois No. 7 I). 
Size as shipped, run of mine. Size as used, over 
1 inch, 32.1 per cent; \ inch to 1 inch, 22.0 per 
cent; \ inch to \ inch, 15.6 per cent; under \ inch 
30.3 per cent. Duration of test, 10.0 hours. Kind 
of grate, plain. 
Test 14ti, Illinois No. 7 I>. 
Size as shipped, run of mine. Size as used, over 
1 inch, 24.3 per cent; J inch to 1 inch, 23.3 per cent; 
J inch to i inch, 18.1 per cent; under J inch, 34.3 per 
cent. Duration of test, 10.07 hours. Kind of 
grate, rocking. 
MISCKU.ANHOIS ITKMN. 
Heating value of coal B. T. U.per pound dry 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-heat- 
ing surface per 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 pounds. 
Per pound of dry coal do... 
Per pound of combustible do... 
Efficiency of boiler, including grate percent. 
Coal as fired: 
Per indicated horsepower hour pounds. 
Per electrical horsepower hour do... 
Dry coal: 
Per indicated horsepower hour do... 
Per electrical horsepower hour do. . . 
Test 
122. 
9.999 
0.58 
.30 
20.08 
2.19 
61.4 
4.71 
5.44 
6.08 
8.97 
58.71 
5.20 
6.42 
4.65 
5.74 
Tost 
129. 
12, 730 
55 
.24 
19.92 
3.19 
89.6 
5.75 
6.70 
8.02 
9.17 
60.84 
4.22 
5.21 
3. 53 
4. 36 
Test 
142. 
11,673 
0.60 
20.07 
2.97 
83. 3 
5. ::< 
6.65 
7.42 
9.25 
61.39 
4.25 
5.25 
3.81 
4.70 
Test 
143. 
11,212 
0.58 
.18 
18.74 
2.69 
75.5 
5,59 
6.46 
7.20 
9.27 
62.01 
4.38 
5.40 
3. 93 
4.85 
Test 
146. 
1 1 . 088 
0.61 
.22 
2.68 
75.2 
5.68 
6.64 
7.40 
9.80 
64.45 
4.26 
5. 26 
3.82 
4.72 
ANALYSES. 
Test 122-. 
Test 129. 
Test 142. 
Test 143. 
Test 146. 
Proximate. 
Moisture 
10.54 
31.18 
32.98 
25.30 
100.00 
4.18 
16.45 
34.43 
40.18 
8.94 
100.00 
3.22 
10.38 
34.33 
39.08 
16.21 
100.00 
4.28 
10.29 
32.34 
38.95 
18.42 
10 29 
Volatile matter 
.'5'' 16 
Fixed carbon 
38 35 
Ash 
19.20 
Sulphur 
100.00 
4.66 
100. 00 
5.01 
