Dhaneshkumar
In the recent years, there is multi-fold growth in vehicular population. As a result there is a marked decrease in ambient air quality because of the pollutants released by these vehicles both on and off road. It also leads to rise in Green House Gas emission because of more CO2 released to the environment. Hence researchers focus on fuel consumption and emission reduction. Due to depleting fossil fuel reserves, there is growing demand to switch over to alternative fuels. Alternative fuels like biodiesel and ethanol are renewable and relatively green, being derived from vegetable oil and sugar molasses respectively. Recently, blending of fuels to improve the combustion properties of fuel is being employed as an option. A single cylinder, water cooled, diesel engine with a rated output of 3.7kW at 1500 rpm was used for conducting the experiments. Tests were conducted with diesel, biodiesel, biodiesel with 10%DMM blend with and without EGR and biodiesel with 20%DMM blend with and without EGR. Biodiesel with DMM blends results in lower thermal efficiency, lower smoke emissions and higher NOx emissions. By implementing EGR, NOx emission reduced and smoke emission increased.
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