Effect of Biodiesel Blend on Exhaust Emission and Engine Performance of Diesel Dual Fuel Engine

In this study, four main types of fuel such as pure Diesel, Biodiesel, Diesel Dual Fuel (DDF), andBiodiesel with DDF were employed to obtain the comparison of the engine performance andemission parameter. The use of compressed natural gas (CNG) in diesel engines can be consideredas one of the optimum alternative solution for reducing fuel consumption rate. CNG can partlyreplace diesel fuel in the combustion chamber, while the remaining diesel is used as a testing fuel.The biodiesel employed in this research was extracted from waste cooking oil which was providedby Forest Research Institute of Malaysia (FRIM). The results of the engine tests showed that anincrease in biodiesel percentage in the testing fuel compound resulting in the reduction of the enginepower. Biodiesel used with CNG (B20-DDF) showed a better result of engine torque compared toother types of fuel tested. It was recorded from this particular work research that, when thecomposition of the biodiesel in the fuel increased, the inherent biodiesel properties like NOxemissions seemed to decrease; however, unburnt hydrocarbon (HC) was found to increase due toincomplete combustion of biodiesel fuel compound.

کلیدواژه ها:

Biodiesel ، Compressed natural nas ، Diesel dual fuel ، Engine performance ، Exhaust emission