C-Series Book - Industrial Engine Service

2
If we use the same example, burning
Butane instead of natural gas for fuel, we
arrive at the following:
C-96 at 570 RPM requires 200,000 BTU
per hour or 200,000 BTU - 2.02 gal butane
per hour 98700 BTU per gal. or 48.48 gal.
per 24 hour (2.02 x 24 = 48.48).
However, if we are only producing 14.25
HP or 75% of maximum load, we look at the
Fuel Consumption Table and fi nd we are
using .56 lbs. of fuel per HP HR or 1.7 gal
butane per hour (.56 lbs. x 14.25 HP = 7.98
lbs. 4.7 lbs per gal = 1.7 gal) or 40.8 gal per
24 hour (1.7 x 24 = 40.8 gal).
It should be pointed out that the above
calculations and tables are based on
engines in new or like-new condition. The
general condition of an engine will have a
large bearing on fuel consumption, that is
the more wear an engine has, the poorer
the fuel economy.
If your horsepower requirement is 14.25
HP, the C-96 is producing 75% of maximum
power.
ENGINE FUELS
Engine fuels are highly combustible and
may ignite or explode. Fuels must be
conducted to the engine with proper piping,
free from leaks, and designed to resist
breakage from vibration. If a gas engine
has been cranked excessively without
starting, or if the engine shutdown with fuel
supply open, shut off the gas fuel supply and
ignition. Then crank the engine to purge the
cylinders, exhaust system, and crankcase
of accumulated, unburned gas. If you fail
to do this, a spark plug could ignite the gas
and cause an explosion.
POSITIVE FUEL SHUT-OFF
Some means of positive fuel shut-off
should be provided for emergency use.
Pressurized fuels (natural gas, liquefi ed
petroleum gas, etc.) should have another
shut-off valve, preferably automatic,
other than those in the carburetor or gas
pressure regulation equipment. It is the
fi nal responsibility of the engine owner to
ensure that the installation is free from fuel
or exhaust leakage, and such installation
meets all applicable codes.
12 C-SERIES SERVICE, OPERATION & PARTS MANUAL – AEPB1 1-800-331-3662