Experimental Investigation on Performance, Emission and Combustion Characteristics of A LHR Single Cylinder Diesel Engine Operating On Deccan Hemp Biodiesel and Diesel Fuel

In this present investigation deccan hemp oil,a non-edible vegetable oil is selected for the on a diesel engine and its suitability as an alternate fuel is examined. The viscosity of deccan hemp oil is reduced first by blending with diesel in 10/90%, 20/80%, 30/70%, 100/0% on volume basis. Performance parameters of brake thermal efficiency, exhaust gas temperature and were determined at various values of brake power (BP) Investigations were carried out to evaluate the performance of a low heat rejection (LHR) diesel engine consisting of air gap insulated piston with 3-mm air gap, with superni (an alloy of nickel) crown and air gap insulated liner with superni insert with different operating conditions of deccan hemp oil based bio diesel with varied injection timing and injection pressure. The effect of void ratio, temperature of catalyst, space velocity on the reduction of oxides of nitrogen (NOx) in the exhaust of the engines was studied. Exhaust emissions of smoke and oxides of nitrogen (NOx) were determined at various values. For ascertaining the validity of result obtained, pure deccan hemp oil from investigation it has been established that, upto 20% of blend of deccan hemp oil without heating and any engine modification.