Abstract:
The study investigated the use of natural gas (NG) for partial replacement of diesel
from supply line in a single cylinder stationary diesel engine. The NG ,vas
introduced through the intake mainfold along with air.
The experiments have been carried out for different shaft power output and diesel
replacement under the conditions of constant engine speed (2200 rpm). The
experimental results show that the substitution of diesel by NG affect the brake
specitic fuel consumption adversely. This is also reHeeted in the brake thermal
efficiency of the engine.
The use of NG as a partial replacement of diesel is found to be more etIective in
cases of higher shaft power output. The results even suggest that the replacement
of diesel by NG enables the engine to produce more engine power and thereby
carry higher load.
<, While considering specific cost estimation it is found that the specific cost of
operation at higher substitution of diesel is much less than that at lower
substitution of diesel when compared at the most economic operating point and at
the current market price.
