194 OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
CHEMICAL ANALYSES. 
Laboratory number. 
Air-drying loss 
Moisture 
Volatile matter 
Fixed carbon 
I Ash 
[Sulphur 
Hydrogen 
Carbon 
Nitrogen 
Oxygen 
Calorific value determined: 
Calories 
British thermal units. 
STEAMING TESTS. 
Mine samples. 
2281 
1.60 
2.70 
32.45 
60. 36 
4. -tit 
. 52 
2282 
1.70 
2.91 
31.99 
60. 97 
4.13 
Car 
sample. 
2382 
2.20 
3.05 
31.65 
60. 82 
4.48 
.67 
5. 17 
80. 35 
1.59 
7.74 
8,039 
14,470 
IVst 880, \ irginia No. :?. 
Tesl 383, Virginia No. :t. 
Size as shipped, over 3j inches. Size as used. 
over 1 inch, 44.7 per C Kit; i inch to 1 inch, 20.2 per 
cent: \ inch to ' inch, 15.7 percent; under \ inch, 
19.4 pel cent. Duration of test, 9.88 hours. Kind 
of grate, rocking. 
Size as shipped, over 3J 
over l inch, 32.8 per cent; '. 
inches. Size as used, 
inch to 1 inch, 16.5 per 
cent; ; inch to \ inch, 15.6 percent; under 
35.] percent. Duration of test, 10 hours, 
of grate, rocking. 
inch, 
Kind 
MISCELLANEOUS ITEMS. 
Beating 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 squa re foot of grate surface per hour pounds. 
Equivalent water evaporated per square fool of water-heal ing surface per hour 
pounds 
Percentage of rated horsepower of boiler developed 
Water apparently evaporated per pound of coal as fired pounds. 
\\ .-iter 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 electrical horsepower hour do.., 
Dry coal: 
Per indicated horsepower hour do.. 
Per electrical horsepower hour do.. 
Test 2S() 
14,908 
Test 283. 
14,936 
0.42 
0.37 
.15 
.16 
2,452 
2,537 
16. 40 
16.47 
2.91 
2.99 
81.6 
83.8 
8.14 
8.18 
9.74 
9.79 
9.91 
10.12 
L0.66 
10.84 
64. 19 
65. 45 
2.90 
2.8$ 
3. 59 
3.5; 
2.85 
2.7! 
3.52 
3.4,' 
