HAYES AND 
KENNEDY. 
USE OF THE OIL AS FUEL. 161 
Comparative fuel value of coal and Beaumont petroleum. 
Price of 
South- 
western 
coal per ton 
of 2,000 
pounds. 
Number of 
barrels of 
Beaumont 
petroleum 
to equal 
1 ton of 
coal. 
Price of 
Beaumont 
petroleum 
per barrel 
to equal 
cost of 1 
ton of 
Southwest- 
Price of 
ordinary 
Pittsburg 
coal per 
ton of 2,000 
pounds. 
Number of 
barrels of 
Beaumont 
petroleum 
to equal 
1 ton of 
Pittsburg 
coal. 
Price of 
Beavimont 
petroleum 
per barrel 
to equal 
cost of 1 
ton of 
Pittsburg 
ern coa 1 
coal. 
$1.00 
3.1 
$0. 32 
$1.00 
4.31 
$0.23 
1.25 
3.1 
.40 
1.25 
4.31 
.30 
1.50 
3.1 
.49 
1.50 
4.31 
.35 
1.75 
3.1 
. .57 
1.75 
4.31 
.41 
2.00 
3.1 
.65 
2.00 
4.31 
.47 
2.50 
3.1 
.80 
2. 50 
4.31 
.58 
3.00 
3.1 
.97 
3.00 
4.31 
.70 
3.50 
3.-1 
1.13 
3.25 
4.31 
.83 
4.00 
3.1 
1.29 
4.00 
4.31 
.93 
4.50 
3.1 
1.45 
4. 50 
4.31 
1.05 
5.00 
3.1 
1.61 
5.00 
4.31 
1.16 
6.00 
3.1 
1.94 
6.00 
4.31 
1.39 
7.00 
3.1 
2.22 
7.00 
4.31 
1.62 
It should be noted, however, that the conditions under which coal 
and petroleum are used in ordinary practice favor the obtaining of a 
larger per cent of the theoretical fuel value in the petroleum than in 
the coal. Also a deduction of at least 10 per cent should ordinarily 
be made from the fuel cost of petroleum on account of economy in 
handling the liquid fuel as compared with coal. Additional benefits 
lonnected with the use of petroleum are cleanliness, heathfulness, 
and absence of smoke, which, however, can not easily be estimated 
in a money equivalent. 
It has been urged that the extremeh T disagreeable odor of the Beau- 
mont oil will militate against its use as a fuel and that in densely 
settled districts its use will not be permissible. It may be positively 
stated, however, that when the burners are in good, clean working 
:>rder no odor whatever can be detected from the burning oil, and 
ivhen it is used in locomotives the absence of dirt and cinders is the 
mly noticeable feature. 
LOCOMOTIVE TESTS. 
As a locomotive fuel, petroleum lias many additional advantages 
)ver coal. Among the more important of these are the perfect con- 
trol under which it is held and its quick response to the great varia- 
ions in demand made upon the boiler. Also in the narrow limits of 
Bull. 212—03 11 
