Abstract
To satisfy real driving emissions (RDE) regulations, it is necessary to reduce exhausted gas emissions under all engine operating conditions. This report examines the potential of gas-to-liquid (GTL) emulsified fuel in terms of exhausted gas emissions and fuel efficiency. Experiments using a single-cylinder diesel engine found that GTL-emulsion fuel drastically reduced NOx and smoke emissions at high loads, while also improving fuel efficiency. Furthermore, by visualizing the spray combustion process in a constant volume chamber, this research also confirmed that GTL-emulsion fuel achieves a soot-less flame even in diffusive combustion.