Abstract
In the first report, engine experiments using a single-cylinder diesel engine found that GTL-emulsion fuel drastically reduced NOx and smoke emissions, while also improving fuel efficiency, and visualization of the spray combustion process in a constant volume chamber showed GTL-emulsion fuel achieves a soot-less flame even in diffusive combustion. In the second report, effects of injection pressure and water content ratio on soot formation process were clarified by combusting spray visualization. It is found that as water content ratio of GTL emulsion fuels are increased, the averaged intensities are drastically reduced, and attain zero level at the 24% water content for the various injection pressures.
