An Experimental Investigations on the Effects of Intake Manifold Design and Use of Bio fuel In DI Diesel Engine

Abstract

The aim of work is to design of inlet manifold for the DI Diesel engine in order to create the turbulence for
better mixing of air and fuel mixture. The Inlet Manifold was modified by inclining at 90o inclination perpendicular to
the standard inlet manifold within the cylinder head of DI engine. The study in made to replace the existing diesel fuel
with the blends of pine oil utilized. The main objective of this work is to discuss the impact of bio-fuel from Pine oil in
blends of 10%,20%,30%,40% and 50% on performance, combustion and emission characteristics diesel.The experiment
were carried out on a stationary direct injection Diesel engine with modified condition of 90o
and standard manifold.
The results shows an decrease in 4.9% in the brake thermal efficiency of the engine for modified condition, the NOx level
increased by 375 ppm for the modified condition whereas there is decrease in HC and smoke density by 75ppm and 35.7
HSU respectively. Increase in pressure and heat release was also observed in the modified inlet manifold condition.