Experimental Study of the Effect of Castor Oil Biodiesel Fuel on Performance and Emissions of Turbocharged DI Diesel

Experimental tests were carried out on a semi-heavy duty motorsazan mt4.244 agricultural engine at various loads in order to evaluate performance and emissions of di diesel engine using the blends of diesel fuel with 5, 10,15,20, 30%(by volume) castor oil and pure diesel fuel separately. the results show that maximum decrease in pm emission compared to that of pure diesel fuel is 73.2% and observed in b15 at 50% load. also, the maximum increase in bsfc and no when compared to those of pure diesel fuel are 10.7 and 15.6% and observed in b30 at 50% load and b20 at 50% load, respectively. the results show that in b15 and at 25% load, no and pm emissions decreases 6 and 64% respectively and bsfc increases 1.5%.