Experimental evaluation of combustion, emission and performance of research diesel engine fuelled di-methyl- carbonate and biodiesel blends

Özet

This study details an outcome of the Di-methyl-carbonate(DMC) as a cetane improver on neat Almond biodiesel(BD100) to evaluate the emission and performance engine characteristics. Four fuels namely diesel, biodiesel(Almond Methyl Ester), a blend of B100-10% and 20% by volume of DMC (BD90DMC10and BD80DMC20) areprepared and tested on a stationary research diesel engine. The experimental parameters for BD80DMC20showed a 1.6% increase in thermal efficiency thereby reducing 4.1% of fuel consumption than the neat biodieselat peak conditions. Experimental outcomes revealed that 20% of DMC reduces 7.4% CO, 5.2% HC and 4.7% NOxand 3.6% smoke emissions of BD100. Further, The DMC inclusion at 10% volume significantly reduces the peakpressure and increases the net Heat Release rate values and its corresponding CA. An inclusion of 20% DMC inBD100 reduces the In-Cylinder Pressure and increases the Net Heat Release Rate values by 2.2% and 4.7%respectively than BD100. From this study, it is inferred that BD80DMC20 blend could be utilized as a substitutefuel for CI engine.