Abstract
The potential of a sustainable fuel composed of lignin and ethanol for marine engines was investigated. A lignin-fuel with 44 wt% lignin, 50 wt% ethanol, and 6 wt% water was experimentally evaluated with a modified small-bore compression ignition engine. The ignition delay was measured and analyzed by the Arrhenius equation. The ignition quality of the lignin-fuel is similar to 1-pentanol (CN = 18.2), which is acceptable for large-scale 2-stroke marine engines. The spray formation was also evaluated from a view of the break-up mechanism and the Sauter-mean diameter, and proper atomization is expected in a large-scale 2-stroke marine engine condition.
