Emission Characteristics of Water in Diesel Nanoemulsions in Diesel Engine

Nanoemulsions are a class of nanomaterials which play an increasingly important role in commercial and environmental aspects. Water-in-diesel (W/D) nanoemulsion is considered one of the environmental friendly alternative fuels for reducing the emission pollution of internal combustion engine such as diesel engines. In this context, a study has been made to evaluate the combustion characteristics of W/D nanoemulsion fuel. A wide range of surfactant concentration (0.25% to 0.40% v/v) with varying amount of water percentage (0.5% to 0.8% v/v) was used in the preparation of W/D nanoemulsion fuel. The high energy emulsification method was applied to prepare W/D nanoemulsions. The combustion characteristics of W/D nanoemulsions are presented in terms of different formulating compositions. An engine test bed was used to combust the W/D nanoemulsions for measuring the exhaust emission concentrations such as CO, CO2 and NH3. A reduction in the concentrations of exhaust gas emissions was notified.