Diesel Fuel and Olive-Cake Slurry: Atomization and Combustion Performance

Because of possible future energy crises, it is increasingly desirable to search for alternative and renewable energy resources. This paper presents a detailed experimental study of direct combustion of a diesel and olivecake (~C) slurry in a vertical, cylindrical, water-cooled combustor, An air-atomized nozzle was used in this study and experiments were undertaken to characterize the atomizerʹs performance. Axial and radial flame temperature profiles, the heat transfer distribution for the water jacket, flame stability and combustion efficiency were obtained over wide ranges of airfuel ratios, and at different percentages of DC in the diesel fuel. The rate of heat transfer to the water jacket and the combustion efficiency were improved as the percentage of DC in the diesel fuel was increased to 7 wt%. Also, as the percentage of DC in the diesel fuel increased, the stability loop became narrower. Stable flames were observed for up to 20 wt% of DC. Based on these results and on the availability of the DC, it may be concluded that the potential of DC as a source of energy is significant. Copyright