148 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
STEAMING TESTS. 
Test 188, Ohio No. 4. 
Size as shipped, over f inch. Size as used, over 
1 inch, 33.3 per cent; \ inch to 1 inch, 23.5 per cent; 
\ inch to \ inch, 14.4 per cent; under \ inch, 28.8 per 
cent. Duration of test, 10.13 hours. Kind of 
grate, plain. 
Test 801, Ohio No. 4. 
Size as shipped, over \ inch. Size as used, over 
1 inch, 38.5 per cent; \ inch to 1 inch, 20.9 per cent; 
\ inch to \ inch, 13.8 per cent; under \ inch, 20.8 per 
cent. Duration of test, 9.98 hours. Kind of 
grate, rocking. 
Test 202. Ohio No. 4. 
Size as shipped, over \ inch. Size as used, over 
1 inch, 48.2-per cent; \ inch to 1 inch, 20.8 per cent; 
\ inch to \ inch, 12.2 per cent; under \ inch, 18.8 per 
cent. Duration of test, 9.38 hours. Kind of 
grate, rocking. 
Test 219, Ohio No. 4, washed. 
Size as shipped, over \ inch. Size as used, over 
1 inch, 30.6 per cent; \ inch to 1 inch, 23.6 per cent; 
\ inch to \ inch, 17.8 per cent; under \ inch, 28 per 
cent. Duration of test. 9.92 hours. Kind of 
grate, plain. 
Tesl 22<>, Ohio No. 4, washed. 
Size as shipped, over \ inch. Size as used, over 
1 inch, 34.4 per cent; \ inch to 1 inch, 22.9 per cent; 
\ inch to \ inch, 15.2 per cent; under \ inch, 27.5 per 
cent. Duration of test, 10 hours. Kind of 
grate, plain. 
Test 221, Ohio No. 4, washed. 
Size as shipped, over \ inch. Size as used, not 
determined. Duration of test, 6.30 hours. Kind 
of grate, plain. 
MISCELLANEOUS ITEMS. 
Heating value of coal, B. T. I', 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-heating surface per hour, 
pounds 
Percentage of rated horsepower of boiler 
developed 
Water apparently evapo rated per pound 
of coal as fired pounds. . 
Water evaporated from and at212°F.: 
Per pound of coal as fired, .pounds.. 
Per poi l nd of d ry coa 1 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, 
pounds 
Dry coal: 
Per indicated horsepower hour, 
pounds 
Per electrical horsepower hour, 
pounds 
Test 188. 
Test 201. 
13,370 
13,545 
0.47 
0.47 
.14 
.18 
2,426 
2,196 
19. 70 
20.60 
3. 39 
3. 32 
95.0 
93.2 
7.08 
7.37 
8. 31 
s. 66 
8.62 
9.00 
9.89 
10 32 
62. 26 
64. 17 
3. 40 
3.27 
4.20 
4. 03 
3.28 
3.14 
4.05 
3.88 
Test 202. Test 219. Test 220. Test 221 
13,374 
0.55 
.21 
2,289 
21.76 
3.55 
99. 5 
7.46 
8.78 
9.10 
10.48 
65.71 
3. 22 
3. 98 
3.11 
3.84 
13,889 
0. 42 
.17 
2,525 
17. 56 
3. 21 
89.90 
7.44 
8.77 
9.14 
10.17 
63. 55 
3. 22 
3. 98 
3.09 
3.82 
13,986 
0.43 
.09 
2,359 
18.60 
3. 32 
93. 20 
7. 26 
8.56 
8.95 
9.84 
61.80 
3.30 
4.08 
3.16 
3.90 
