1 Water-emulsified fuel (WEF)
The world’s first commercial marine application
Water-emulsified fuel is produced through emulsification of a mixture of heavy oil and clean water. When fuel is combusted, water molecules in the fuel evaporate, absorbing the heat inside the cylinder, and thus reduce generation of NOx. Along with EGR, WEF is a key technology of K-ECOS which enables ships to clear Tier III requirements for NOx emissions. WEF has already been used commercially for boilers and other equipment. However, Kawasaki is the first in the world in applying WEF to long-term use in marine diesel engines.