114 PRELIMINARY REPORT ON COAL-TESDING PLANT, [bull. 261. 
The West Virginia No. 9 is a rich bituminous coal. It burned well 
and was easily handled in the producer, yielding a gas of uniformly 
good quality. It makes a good producer fuel. On account of $lA 
accident to the gas engine the test on this coal had to be stopped before 
it was completed. A second test is being made as this report goes to 
press. The results of the second test will be given in the final report. 
COAL, WEST VIRGINIA NO. 12, PRODtJCER-GAS TEST NO. 8.* 
[Coal from mine of the Big Sandy Coal and Coke Company, Big Sandy, W. Va.; tested November 
7, 8, 1904.] 
Duration of test hours. . 30 
Total coal consumed in producer pounds. . 8, 100 
Moisture in coal per cent. . 1. 43 
Dry coal consumed in producer pounds. . 7, 984 
Refuse from dry coal per cent. . 6. 54 
Total refuse from coal , pounds. . 522 
Total combustible consumed in producer do 7, 462 
Coal consumed, pounds per hour. 
Coal consumed in producer 270 
Dry coal consumed in producer 266. 1 
Combustible consumed in producer 248. T 
Equivalent coal used by producer plant 304. 9fl 
Equivalent dry coal used by producer plant 300. 5' 
Equivalent combustible used by producer plant 280. |j 
British thermal units. 
Per pound of coal as fired 14, 614 
Per pound of dry coal 14, 825 
Per pound of combustible 15, 860 
Per cubic foot of standard gas 142. 1 
From standard gas per pound dry coal burned in producer 10, 150 
From standard gas per hour per brake horsepower 11, 500 
Gas produced, cubic feet (reduced to standard). 
Total : 568, 700 
Per hour 18,957 
Per pound coal consumed in producer 70. 
per pound dry coal consumed in producer 71. J 
Per pound combustible consumed in producer 76. j 
Per pound equivalent coal used by producer plant 62. 
Per pound equivalent dry coal used by producer plant 63. j 
Per pound equivalent combustible used by producer plant 67. i 
Horsepower developed. 
Average electrical horsepower available for outside purposes 191 
Average electrical horsepower developed at switch board — 199. | 
Average brake horsepower f available for outside purposes 225 | 
Average brake horsepower f developed at engine 235 | 
* Gas-producer hopper leaked. 
f Based on an assumed efficiency of 85 per cent for generator and belt. 
