92 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
STEAMING TESTS. 
Test 160, Illinois No. 19 A. 
Size as shipped, f-inch coal. Size as used, h inch 
to 1 inch, 21.3 per cent; J inch to I inch, 32.0 per 
cent; under { inch, 46.7 per cent. Duration of 
test, 10.02 hours. Kind of grate, plain. 
Test 161, Illinois No. 19 A. 
Size as shipped, f-inch coal. Size as used, over 
1 inch, per cent; \ inc h to 1 inch, 13.6 per cent; \ 
inch to ^ inch, 27.2 per cent; under \ inch, 59.2 per 
cent. Duration of test, 9.97 hours. Kind of 
grate, plain. 
Test 163, Illinois No. 19 A. 
Size as shipped, f-inch coal. Size as used, over 1 
inch, per cent; \ inch to 1 inch, 17.7 per cent; \ 
inch to \ inch, 34.7 per cent ; under j inch, 47.6 per 
cent. Duration of test, 9.98hours. Kind of grate, 
plain. 
Test 170, Illinois No. 19 A. 
Size as shipped, |-inch coal. Size as used, over 
1 inch, per cent; l inch to 1 inch, L3.6percerit; 1 
inch to \ inch, 31.3 percent; under \ inch, 55.1 per 
cent. Duration of test, 9.07 hours. Kind of 
grate, rocking. 
Test 171, Illinois No. 19 A. 
Size as shipped, J-inch coal. Size as used, over 
I inch, per cent; \ inch to 1 inch, 13.6 per cent; \ 
inch to \ inch, 31. 8 per cent; under \ inch, 54.6 per 
cent. Duration of test, 9.97 hours. Kind of 
grate, rocking. 
Test 175, Illinois No. 19 B. 
Size as shipped, 3-inch coal. Size as used, over 
1 inch, 60.2 per cent; \ inch to 1 inch, 15.7 per cent; 
\ inch to \ inch, 9.2 percent; under \ inch, 14.9 per 
cent. Duration of test, 9.9 hours. Kind of 
grate, plain. 
Test 804, Illinois No. 19 15. 
Size as shipped, 3-inch coal. Size as used, over 
1 inch, 44.0 percent; \ inch to i inch, 17.2 percent; 
| inch to \ inch, 12.3 percent; under ', inch, 26.5 per 
cent. Duration of test, 10.03 hours. Kind of 
grate, rocking. 
Test 805, Illinois No. 19 B. 
Size as shipped, 3-inch coal. Size as used, over 1 
inch, 54.4 per cent ; \ inch to 1 inch, 15.1 percent; \ 
inch to J inch, 10.7 percent; under \ inch, 19.8 per 
cent. Duration of test, 9.93 hours. Kind of 
grate, rocking. 
MISCKI.I.AM.Ol s ITEMS. 
Heating value of coal, B. T. U. per 
pound dry coal 
Force of draft: 
Under stack damper, inch water 
Above fire inch water. 
Furnace temperature °F. . 
Dry coal used per square foot of 
grate surface per hour. . .pounds. 
Equivalent water evaporated per 
square foot of water-heating sur- 
face 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 
Test 
160. 
Per pound of dry coal, .pounds. . 
Per pound of combustible.. do.. 
Efficiency of boiler, including grate, 
per cent 
Coal as fired: 
Per indicated horsepower hour, 
pounds 
Per electrical horsepower hour, 
pounds 
Dry coal: 
Per indicated horsepower hour, 
pounds 
Per electrical horsepower hour, 
pounds 
13,036 
0.40 
.14 
2,428 
18.47 
3.07 
86. 1 
6.27 
7.27 
8. 33 
9. 45 
61.71 
3.89 
4.80 
3.40 
4.19 
Test 
161. 
Test 
L63. 
Test 
170. 
12,911 
13,068 
12,857 
0. 54 
0. 67 
o. 56 
.20 
.17 
. 16 
2,080 
2,227 
2,039 
17.77 
20. 79 
20.22 
3.12 
3.57 
3. 10 
S7.<i 
100.2 
87.0 
6. 54 
6. 45 
6.37 
7.62 
7. 50 
7.42 
8.80 
8.61 
8. 56 
10.17 
9.70 
9. 85 
65.82 
63. 63 
64.29 
3.71 
3.77 
3.81 
4.58 
4.66 
4.71 
3.21 
3.28 
3.30 
3.97 
4.06 
4.08 
Test 
171. 
12,917 
0.49 
.17 
Test 
175. 
20.08 
3. 23 
90.6 
6.71 
7.79 
8.97 
10. 30 
67.06 
3.63 
4.48 
3. 15 
3.89 
0.41 
.09 
2,470 
20. 54 
3.73 
104. 7 
6.96 
8. 13 
9. 10 
10. 53 
67. 50 
3.48 
4.30 
3. 11 
3.84 
Test 
204. 
13,050 
0.41 
.11 
2,447 
20.69 
3.50 
98.2 
7.27 
8.54 
9. 45 
10. 83 
69.93 
3.3] 
4.09 
2.99 
3.70 
13,001 
0.40 
.12 
2.448 
20.38 
3.31 
94.9 
7.11 
8. 32 
9. 27 
10. S3 
68.86 
3.40 
4.20 
3.05 
3.77 
