176 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
CHEMICAL ANALYSES. 
Mine samples. 
Car 
sample. 
Laboratory number. 
Air-drying loss 
a ("Moisture 
| Volatile matter 
g "I Fixed carbon 
£ I Ash 
| Sulphur 
® Hydrogen 
S Carbon 
— Nitrogen 
P 
Oxygen 
Calorific value determined: 
Calories 
British thermal units. 
1994 
2.40 
3.30 
23.03 
62. 49 
11. IS 
1.79 
7,432 
13,378 
1995 
1.90 
2.78 
22.91 
61..58 
12.73 
1.88 
2154 
3.20 
4.09 
20. (12 
62.82 
12.47 
2.08 
1.73 
72. 78 
1.50 
6. 44 
7.307 
13,153 
STEAMING TESTS. 
Tesl li>8, Pennsylvania No. 
Size as shipped, run of mine. Size as used, over 
1 inch, 13.4 per cent; \ inch to 1 inch, 16.7 per cent; 
\ inch to \ inch. L8.9 percent; under | inch. 51.0 per 
cent. Duration of test, 10.03 hours. Kind of 
grate, plain. 
Test UM), Pennsylvania No. 7, washed. 
Size as shipped, run of mine. Size as used, over 
1 inch, 19.2 per cent; \ inch to 1 inch, 22.0 per cenJ 
1 inch to \ inch, 20.4 per cent; under 1 , inch, 38.4 per 
cent. Duration of test, 10.03 hours. Kind of 
grate, plain. 
MISCELLANEOUS ITEMS. 
1 1 eating value of coal B. T. V . per pound dry coal. 
Force of draft : 
Under stack damper inch water. 
A hove lire dO... 
Furnace temperature °F. 
Dry coal used per square fool of grate surface per hour pounds. 
Equivalent water evaporated per square fool 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 c I'.: 
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 do. . . 
Dry coal: 
Per indicated horsepower hour do. .. 
Per electrical horsepower hour do... 
Test pis. 
L3,648 
0. -is 
. Pi 
2.091 
17.04 
3. 12 
87.5 
7.55 
8.87 
9.18 
10.85 
04. 96 
3.19 
3.94 
3.08 
3.80 
Tesl 199 
13,828 
0. 39 
.12 
2,230 
l(i. 74 
3.16 
S8.6 
7.64 
9.44 
10.88 
65.93 
3.15 
3.88 
3.00 
3.70 
