Abstract
Fuel oil fine filter in front of ocean going diesel engines became necessary to cope with recent residual heavy fuel oil, but flow capacity of supply pump in fuel oil circulation line are large as compared with fine filter flow capacity. There for, we can not equip the filter in front of main engine.
Oxdated asphaltic hard carbon and sodium chloridize became generally most in fuel circulation line by superheating.
This report gives how to cope with heavy fuel oil by small changeover of fuel oil supply pump.
