196 
OPERATIONS OF FUEL-TESTING PLANT IN 1905. 
COKING TESTS. 
Test 61, Virginia No. .'?. 
Size as shipped, 'over 3| inches. Size as used, 
finely crushed. Raw. Duration of test, 45 hours. 
Coal charged pounds. . 12,000 
Coke produced do 8,160 
Breeze produced do 240 
Coke produced per cent . . 68. 00 
Breeze produced do 2.00 
Total percentage yield 70. 00 
Remarks.— Light gray and silvery. Veryheavy 
coke. Breaks in long, large, heavy pieces. Fine 
coke. High yield due to deposited carbon. 
Test 88, Virginia Wo. 3. 
Size as shipped, over 3$ inches. Size as us( 
same. Duration of test. . r >0 hours. 
Coal charged pounds.. 12,( 
Coke produced do 7,< 
Breeze produced do ; 
Coke produced percent. . 65. 
Breeze produced do 2. 
Total percentage yield 68. 
Remarks.— Fine coke. Light gray and silvei 
Very heavy. Breakage good; long, large piea 
Yield not so high and breeze higher than in co 
from crushed coal. 
ANAI.YSKS. 
Test 61. 
Test 88. 
Coal. 
Coke. 
Coal. 
Coke 
2.87 
31. 58 
61.43 
4.12 
. 56 
0.29 
1.21 
02. 60 
5. 90 
.61 
2.49 
31.90 
61.16 
4. 45 
.57 
0. 
1. 
91. 
Ash 
6. 
Sulphur 
VIH(;iMA NO. 4. 
Bituminous coal from Darby mine, Darby Coal and Coke Company, Darby, Lee Count 
Va., on the Louisville and Nashville Railroad. 
This sample was loaded under the supervision of Inspector J. W. Groves, and consist* 
of lump coal over ll-inch bar screen. The following tests were made: Coking test No. 6 
steaming tests Nos. 240, 248, 254, and 245, and producer-gas test No. 74. 
Two mine samples were taken for chemical analysis. No. 2323 was cut in room 18 c 
the first butt entry, 1,423 feet from the drift mouth; No. 2324 
third butt entry, 900 feet from the drift mouth. 
CHEMICAL ANALYSES. 
was taken in 
room 
1 off tl 
Mine 
samples. 
Car 
sampl< 
La 
\i 
horatory number 
2323 
1.90 
3.89 
34.89 
58. 16 
3. 06 
.34 
2324 
1.50 
3.55 
37. 06 
56. SS 
2.51 
.50 
2c 
2. 
4. 
30. 
54. 
4. 
5. 
76. 
r-drying loss 
c3 
Moisture 
- 
Volatile matter 
'* 
Fixed carbon 
o 
(Ash 
I Sulphur 
-' 
Hydrogen 
F 
Carbon 
Nitrogen 
1. 
Uj 
Oxygen 
11. 
Ca 
lorific value determined: 
Calories 
7,858 
14.144 
7,' 
British thermal units 
13,! 
