'ernald.] PRODUCER-GAS TESTS. Ill 
COAL, WEST VIRGINIA NO. 4; PRODUCER-GAS TEST NO. 4. 
[Coal from the mine of the West Virginia Coal Company, Bretz, W. Va.; tested October 20, 1904.] 
duration of test hours. . 9 
Dotal coal consumed in producer pounds. . 2, 100 
Moisture in coal per cent. . 1. 99 
)ry coal consumed in producer pounds. . 2, 058. 2 
Refuse from dry coal per cent. . 9 
?otal refuse from coal pounds. . 184. 9 
?otal combustible consumed in producer pounds. . 1, 873. 3 
Coal consumed, pounds per hour. 
)oal consumed in producer 233 
)ry coal consumed in producer 229 
Combustible consumed in producer 208 
Equivalent coal used by producer plant 262. 8 
Equivalent dry coal used by producer plant 258. 2 
equivalent combustible used by producer plant 234. 5 
British thermal units. 
fer pound of coal 13, 918 
er pound of dry coal 14, 202 
er pound of combustible 15, 600 
er cubic foot of standard gas 143. 2 
rom standard gas per pound dry coal burned in producer 11, 610 
rom standard gas per hour per brake horsepower 11, 320 
Gas produced, cubic feet (reduced to standard). 
otal 167, 000 
er hour 18, 560 
sr pound coal consumed in producer 79. 6 
3r pound dry coal consumed in producer 81. 2 
r pound combustible consumed in producer 89. 2 
r pound equivalent coal used by producer plant : 70. 6 
3r pound equivalent dry coal used by producer plant 71. 9 
jr pound equivalent combustible used by producer plant 79. 2 
Horsepower developed. 
verage electrical horsepower available for outside purposes 189. 2 
erage electrical horsepower developed at switch board 199. 7 
rerage brake horsepowerf available for outside purposes 222. 5 
/erage brake horsepowerf developed at engine 235 
f Based on an assumed efficiency of 85 per cent for generator and belt. 
