TESTS INDIANA 
CHEMICAL ANALYSES. 
117 
Laboratory number. 
Air-drying loss 
a3 i Moisture 
a Volatile matter 
P I Fixed carbon 
Ztt^ 
(Sulphur 
Hydrogen 
Carbon 
Nitrogen 
Oxygen 
Calorific value determined: 
Calories 
British thermal units. 
STEAMING TESTS 
Mine samples. 
iss:; 
10.60 
14. 23 
33. 04 
47.01 
5.72 
6, 512 
11,722 
1SS4 
9.60 
L2.62 
34. 92 
45. 48 
6. 98 
2.35 
Car 
imple. 
2087 
4. 00 
12. 15 
33. 48 
46.23 
s. 1 4 
1.41 
5.46 
64. 92 
1.38 
IS. CO 
6, 534 
11,761 
Tost 333, Indiana No. 11. 
Size as 
inch, 27.4 
\ inch to 
per cent, 
grate, roc 
Size as 
inch, 22.1 
shipped, lump. Size as used, over 1 
per cent; h inch to 1 inch, 25.1 per cent; 
\ inch, 18.6 per cent; under \ inch, 28.9 
Duration of test, 9.65 hours. Kind of 
king. 
Test 334, Indiana No. 11. 
shipped, lump. Size as used, over 1 
per cent; \ inch to 1 inch, 19.9 per cent ; 
| inch to h inch, 10.2 per cent; under \ inch, 38.8 
per cent. Duration of test, 9.62 hours. Kind of 
grate, rocking. 
Test 335, Indiana No. 11. 
Size as shipped, lump. Size as used, over 1 
inch 20.8 per cent; \ inch to 1 inch, 10 per cent; 
\ inch to \ inch, 19.4 per cent; under \ inch, 40.8 
per cent. Duration of test, 9.95 hours. Kind of 
grate, rocking. 
MINCKLLANEOUK ITEMS. 
Heating value of coal B. T. U. per pound dry coal. 
Fori 1" 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 
"oal as fired: 
Per indicated horsepower hour pounds 
Per electrical horsepower hour do.. 
'ry coal: 
Per indicated horsepower hour do. . 
Per electrical horsepower hour do. . 
Test 233. 
0. 51 
.11 
2,577 
22.80 
3. 66 
102.5 
6.61 
7.88 
8. 94 
9. 98 
64. 32 
3. 59 
4. 43 
3. 16 
3.91 
Test 234. 
13,333 
0.48 
.12 
2,378 
20. 22 
3. 66 
91.4 
6.71 
7.09 
8.99 
10. 06 
65. 1 1 
3.54 
1. 37 
3.15 
3. 89 
Test 235. 
13,473 
0. 50 
.15 
2, 494 
21. is 
3. 43 
96. 1 
6. 66 
7. 94 

10.00 
64. 72 
;; 56 
4. 40 
3. 13 
3. 87 
