Performance and Analysis of Ethanol and EGR effect on the exhaust gases in compression ignition engine

Abstract

Last few years world nations developments increase very rapidly by consumption of fuels
so the emission of fuels widely damaged the world climate like the word “Global Warming” is
became very popular in now days and this is because of emission of different fuels so controlling of
emissions are very important and today different experiments are done for controlling of emissions.
Today the consumption of Diesel becomes more especially in transportation and industries so for
controlling of diesel emission I have used the Ethanol as additives and Exhaust Gas Recirculation
(EGR) process combinedly.The Experiment is done on a single cylinder, 4-stroke, water cooled,
kirloskar made diesel engine by mixing of ethanol in diesel by 10% and EGR at 10% , 15% and
20%.Exhaust Gas Recirculation process is really useful technique in controlling oxides of nitrogen in
diesel engines but it’s not give proper result at higher loads and higher percentage of recirculated gas
because combustion tends to deteriorate at higher loads leading to reduced engine thermal efficiency
and increased hydrocarbon and smoke emission so mixing of ethanol in diesel increase cetane index
and kinematic viscosity. It has been observed from the different ratio of ethanol and EGR 10%
Ethanol and 10% EGR is very effective from the others because it’s increase thermal efficiency,
decrease tremendous amount of NOx, decrease fuel consumption, decrease HC at lower load,
decrease O2intake in combustion chamber.only the disadvantages of ethanol is it’s increase water
content in combustion chamber and also increases little amount of CO and CO2