94 
PKELIMJLNAKY REPOBT ON COAL-TESTING l'LANT. [bull.'. 
Horsepower developed. 
Average electrical horsepower available for outside purposes . 
Average electrical horsepower developed at switch board 
Average brake horsepower* available for outside purposes. . . 
Average brake horsepower * developed at engine 
189. 
198. 
223 
288 
Coal consumed in producer, pounds per horsepower per hour 
Per electrical horsepower available for outside purposes. . 
Per electrical horsepower developed at switch board 
Per brake horsepower* available for outside purposes . . . 
Per brake horsepower* developed at engine 
Equivalent pounds used by producer plant per electrical 
horsepower available for outside purposes. 
Equivalent pounds used by producer plant per electrical 
horsepower developed at switch board 
Equivalent pounds used by producer plant per brake 
horsepower* available for outside purposes 
Equivalent pounds used by producer plant per brake 
horsepower* developed at engine 
Coal as 
fired. 
Dry coal. 
1.85 
1.62 
L. 76 
1.55 
1.57 
1.37 
1.50 
1.31 
2.11 
1.S4 
2.01 
1.76 
1.79 
1.56 
1.71 
1.50 
Comb 
libit- 
I 
I 
• i 
i i 
i 
i 
i 
i 
i 
Average composition of coal and gas. 
coal. Per cent. 
Moisture 12.43 
Volatile matter 32.65 
Fixed carbon 45. 70 
Ash 9.22 
Sulphur 1.41 
GAS BY VOLUME. 
Carbon dioxide 
Oxygen 
Carbon monoxide 
Hydrogen 
Methane 
Nitrogen 
Per c 
9 
15 
9 
6 
58 
IOC 
There was no trouble during the whole of the test of Illinois Nc 
coal in keeping the producer bed in good condition. The coal yiek 
a large amount of tar, and gave a rich, uniform gas, which left 
trace of tar or sulphur in the engine valves. It may be placed amc 
the better grade of gas-producer coals. 
COAL, INDIANA NO. 1; PRODUCER-GAS TEST NO. 14. 1 
[Coal from Mildred mine of the J. Woolley Coal Company, Mildred, [nd.; tested December 2 an 
1904.] 
Duration of test hours. . 2{ 
Total coal consumed in producer pounds. . 
Moisture in coal per cent. . 
Dry coal consumed in producer pounds. . 
Refuse from dry coal per cent. . 
Total refuse from coal pounds. . 
Total combustible consumed in producer pounds. . 
n 
11, 70( 
i: fho 
10, 36 j 
1,181' 
9,11 
* Based on an assumed efficiency of 85 per cent for generator and belt, 
f Gas-producer hopper leaked. 
;" 
