• Dr.R.P.Chowdary
• Dr.M.V.S.MuraliKrishna

Vegetable oils are a Promising substitute for diesel as their cetane number is close to that of diesel fuel. In the present study used cooking oil as well as its biodiesel was used as a total substitute on a 3.68kW, 1500RPM diesel engine at the recommended injection timing and pressures (270bTDC and 190 bar); and its performance parameters were analyzed in comparison to neat diesel operation. The used cooking oil was converted to biodiesel through a process known as esterification. Peak brake thermal efficiency was higher for diesel fuel, followed by biodiesel and crude waste fried oil. Engine with biodiesel operation at full load decreased peak Brake thermal efficiency by 4%, increased Brake specific energy consumption by 5% , Exhaust gas temperature was found to increase by 13%, decreased Volumetric efficiency by 3%.

Diesel engine, Direct Injection, Cooking oil, Injection Pressure

"Experimental Investigations of Performance Parameters on Direct Injection Diesel Engine with Alternative Fuels", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.287-292, June-2018, Available :http://www.jetir.org/papers/JETIR1806036.pdf

"Experimental Investigations of Performance Parameters on Direct Injection Diesel Engine with Alternative Fuels", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp287-292, June-2018, Available at : http://www.jetir.org/papers/JETIR1806036.pdf