214 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
MISCELLANEOUS ITEMS. 
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-heating 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 do 
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 elect rical horsepower hour do 
Test 259. 
14,476 
0.18 
.15 
(a) 
b 100.0 
7.38 
8.73 
9.00 
9.71 
60.04 
3.24 
4.00 
3.14 
3.88 
Test 261. 
14,414 
0.39 
.13 
2,590 
17.80 
3. 35 
93.8 
8.46 
10. 17 
10. 49 
11.41 
70. 28 
2. 78 
3. 43 
•2. 69 
3.33 
a Too low to read with pyrometer. 
ANALYSES. 
>> Approximated. 
Test 259. 
Test 261. 
Test 262. 
Test 259. 
Test 261. 
Test 1 
Proximate. 
Moisture 
3.07 
32.71 
58.12 
6.10 
3.02 
32.79 
57. 66 
6.53 
2.74 
32.52 
58.02 
0.72 
Ultimate. 
Carbon " 
80. 45 
4.82 
6. 30 
1.46 
0.68 
6.29 
80.08 
4.79 
6. 26 
1.46 
0.68 
6.73 
79. 
Volatile matter 
Hydrogen " 
4. 
0. 
Ash 
1. 
0.' 
6.< 
100.00 
0.66 
100.00 
0. 66 
100.00 
0.69 
Ash 
Sulphur 
100.00 
100.00 
100.( 
a Figured from car sample. 
PRODUCER-GAS TEST. 
Test 80, West Virginia No. 18. 
Size as shipped, run of mine. Size as used, over 1 inch, 69 per cent; -J inch to 1 inch, 13 percent 
± inch to \ inch, 7 percent, under \ inch, 11 percent. Duration of test, 50 hours. 
Average electrical horsepower 197. 
Average B. T. U. gas, per cubic foot 158. 
Total coal fired pounds. . ll,2f 
