Experimental Investigation of the Combustion of a Spark Ignition Engine, With Gasoline-Ethanol-MTBE Blends as Fuel, to Reduce Fuel Consumption and pollutants

Ommi, F.; Farhang, K.; Shafiei Sabet, A.

Experimental Investigation of the Combustion of a Spark Ignition Engine, With Gasoline-Ethanol-MTBE Blends as Fuel, to Reduce Fuel Consumption and pollutants

Authors

F. Ommi

K. Farhang

A. Shafiei Sabet

Abstract

Since adding MTBE to gasoline leads to destructive biological effects such as untreatable diseases, it has
been couple of years that this material is omitted from gasoline in developed countries. The main objective
of this research paper is substituting ethanol for additive substance MTBE as well as studying the effect of
ethanol as a fuel on the performance, pollutant production and fuel consumption of a spark ignition motor
and finally achieving an optimal ethanol-gas composition. The Experiments were carried out regarding to
cases of Full and Part load. The full load Experiment was performed in terms of varies speeds of motor and
the part load one utilize speed ranging from 2000 to 3000 rpm. The ignition time (duration) was optimized in
the entire Experiment. The achieved outcomes demonstrate that when ethanol rate is changed in a composition,
the volumetric efficiency, power and torque of the motor is boosted. Besides, specific fuel consumption
in low-speed is cut and it is increased in accelerations. On the other hand, ethanol in the composition has led
to a considerable decrease in the amount of HC pollutant. CO pollutant is lessened to some extent while NOx
rate shows a nominal accession. XU7JP/L3 motor is studied in this research paper

Keywords

Fuel Consumption

Ethanol

MTBE

emissions

engine performance