Emission Control Using Water Emulsified Diesel in Single Cylinder Diesel Engine

This paper reports on the effect of water emulsified diesel fuel combustion on brake thermal efficiency, brake specific fuel consumption, Oxides of Nitrogen (NO_x) and Hydrocarbon emissions in a diesel engine. The experiments were conducted on a single cylinder four stroke cycle diesel engine. Initially test was conducted using pure diesel. Two tests also conducted for diesel fuel with 10 % water and diesel fuel with 20% of water by keeping Polysorbate 20 as solvent. From the test results, it was found that the water emulsification has a potential to improve brake thermal efficiency and brake specific fuel consumption. Emulsions of diesel and water are often promoted as being able to overcome the difficulty of simultaneously reducing emissions of both oxides of nitrogen (NO_x) and hydro carbon emissions in a diesel engine.