106 OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
CHEMICAL ANALYSES. 
Laboratory number. 
Air-drying loss 
« (Moisture 
g | Volatile matter 
g 1 Fixed carbon 
£||Ash 
[Sulphur 
3 Hydrogen 
S Carbon 
~ Nitrogen 
(Oxygen 
Calorific \ alue determined: 
Calories 
British thermal units. 
Mine samples. 
1824 
0.40 
10.18 
38. 86 
42.84 
8.12 
.3. 90 
0,767 
12,181 
1825 
6. 20 
9. 99 
37. 86 
44.18 
7.97 
3. 25 
Car sam- 
ple \. 
I SSI 
3.60 
8.90 
38.52 
43. 37 
9.21 
3.74 
5.01 
65. 54 
1.20 
14.70 
0, 671 
12.008 
Car sam- 
ple B. 
1882 
s. 60 
II. 12 
36.98 
42. 55 
63.01 
I. 13 
17. 10 
416 
549 
STEAMING TESTS. 
Test 158, Indiana No. 7 A. 
Size as shipped, lump, egg, and nut. Size as 
used, «>ver 1 inch, 44.3 per cent; '. inch to 1 inch, 
25 per cent; \ inch to £ inch, 14.2 per cent; under 
£ inch, 16.5 percent. Durationof test, 10.02 hours. 
Kind of grate, plain. 
Tesl L64, Indiana No. 7 IJ. 
Size as shipped, screenings. Size as used, over 
1 inch, 5.6 percent; \ inch to l inch, 25.3 percent; 
J inch to \ inch. 25.8 percent; under j inch, 43J 
per cent. Duration of test, 10.03 hours. Kind 
of grate, rocking. 
Test 17o. Indiana No. 7 li. 
Size as shipped, screenings. Size as used, over 
i inch, 5.1 percent: \ inch to 1 inch, 23.1 percent; 
\ inch to \ inch, 24.4 per cent; under \ inch, 17.4 
per cent. Duration of test, 10.07 hours. Kind 
of grate, plain. 
MISCELLANEOUS ITEMS. 
Test 158. 
Tes1 L64. 
13,248 
12,838 
0.44 
0.02 
.12 
.23 
2,579 
1,880 
19.85 
19.01 
3. 45 
2.69 
96.9 
75.5 
6.80 
6.05 
7.95 
7.00 
8.72 
7.91 
9.83 
9.14 
63. 56 
59.49 
3.56 
4.01 
4.39 
4.95 
3.24 
3.57 
4.00 
4.41 
Test i; 
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 oounds.. 
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 fire l. 
Per indicated horsepower hour pounds. . 
Per electrical horsepower hour do 
Dry coal: 
Per indicated horsepower hour do 
Per electrical horsepower hour do 
12,710 
0. 56 
.17 
2,038 
17.48 
2. so 
78. d 
6. 27 
7.27 
8.02 
9. 32 
00. 94 
3.89 
4.80 
3. 53 
4.35 
