MARPOL Annex VI "Regulations for the Prevention of Air Pollution from Ships" stipulate that Heavy Fuel Oil (HFO) combustion is not permitted during port stay and in specific areas at sea. The switchover to lighter types like Marine Diesel Oil (MDO) or Marine Gas Oil (MGO) requires monitoring and some modifications to the burner and fuel systems, as outlined by Aalborg Industries in this brief.

1.0 Legislation and compliance
1.1 Oil selection
1.2 Auxiliary boilers and burners
1.3 Burner and fuel systems
2.0 Fuel properties
3.3 Fuel preheaters
4.0 Burners
4.1 Pressure jet burner
4.3 Steam atomizing burner
5.0 Modifications to the existing boiler/burner system

More info Download from Infomarine On-line Library