Abstract
The use of second-generation biodiesel has been increasing swiftly in the place of petroleum fuels. This paper explains the influence of chicken waste on a direct injection diesel engine performance, combustion and emission characteristics. The combination of hydrogen and biodiesel derived from waste chicken fat were examined across various engine speeds such as 1000 rpm, 1500 rpm, 2000 rpm, 2500 rpm and 3000 rpm. The hydrogen is a green and efficient fuel that was mixed with the biodiesel at the level of 5 liter per minute. The tested biodiesel blends were C0 (Diesel 100%), C15 (Chicken fat biodiesel 15%+pure diesel 85 %), C30 (Chicken fat biodiesel 30%+ pure diesel 70%), CH5 (Diesel + 5 LPM Hydrogen), C15H5 (Chicken fat biodiesel 15%+pure diesel 85%+ 5LPM), and CF30H5 (Chicken fat biodiesel 30%+pure diesel 70%+ 5LPM Hydrogen). The results proved that the hydrogen enriched biodiesel improved the performance in terms of brake thermal efficiency, brake power and lowered the brake specific fuel consumption. At higher speeds CH5 produced higher brake power, however at lower speeds C15H5 and C30H5. Further the blend C30H5 reported the maximum BTE of 38% at 2000 rpm. With regard to emissions, all the biodiesel blends reported to produce least carbon monoxide (CO) emission. However, all biodiesel blends reported marginal increase in the nitrogen of oxides (NOx) and carbon dioxide (CO2) irre-spective of the engine speeds.