184 
OFERATIONS OF FUEL-TESTING PLANT IN 1905. 
CHEMICAL ANALYSES. 
Mine samples. 
Car 
sample. 
La 
M 
2980 
1.80 
3.(17 
34.03 
56.84 
5. 46 
1.37 
2081 
2.20 
4.08 
34.41 
56.19 
5.32 
1.31 
2229 
1.30 
2.61 
% 
34.92 
~ 
56.30 
o 
■- 
fAsh 
6.17 
Mh 
[[Sulphur 
1.26 
q5 
5. 21 
Carbon 
77.14 
1.57 
P 
8.65 
Calorific value determined: 
7, 708 
13,874 
7,776 
13,997 
STEAMING TESTS. 
Tost 827, Pennsylvania No. 10. 
Size as shipped, over J inch. Size as used, over 
1 inch, 22.8 per cent; } inch to 1 inch, 23.2 per cent; 
i inch to } inch. 18.5 per rent, under J inch. 35.5 
percent. Duration of test, 10.0 hours. Kind of 
grate, rocking. 
Test 228, Pennsylvania No. 10. 
Size as shipped, over | inch. Size as used, over 
1 inch, 23.9 percent; $ inch to 1 inch, 18.7 per cent ; 
i inch to £ inch, 15.8 per cent; under } inch, 41.6 
per cent. Duration of test, 9.97 hours. Kind of 
grate, rocking. 
Test 229, Pennsylvania No. 10. 
Size as shipped, over ^ inch. Size as used, over 
1 inch, 27.4 percent; .J inch to 1 inch, 21.7 percent; 
£ inch to £ inch, 16.7 per cent; under \ inch, 34.2 
per cent. Duration of test, 10.0 hours. Kind of 
grate, rocking. 
MISCF.I.LAXKOl S ITEMS. 
Test 227. 
Test 228. 
Test 229. 
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 per cent. . 
Coal as fired: 
Per indicated horsepower hour pounds . . 
Per olectrieal horsepower hour do 
Dry coal: 
Per indicated horsepower hour do 
Per electrical horsepower hour do 
14,341 
0.52 
.16 
3.46 
97.0 
8.28 
9.80 
10.12 
11.03 
68.15 
2.89 
3.58 
2.79 
3.45 
14,324 
0.48 
.16 
2,329 
17.80 
3.23 
90.7 
8.35 
9.85 
10.14 
11.09 
68.36 
2.87 
3.55 
2.79 
3.44 
14,431 
0.56 
.15 
2,445 
21.73 
3.78 
105.9 
7.94 
0. 47 
0.69 
10.49 
64.84 
2.99 
3.69 
2.92 
3.61 
