An engine technology that allows a marine engine to operate on two different types of fuel, typically LNG and conventional marine diesel or heavy fuel oil. Dual-fuel engines provide operational flexibility and can switch between fuels depending on availability, price, and emission regulations.
Category: Marine Engineering
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Ballast Water TreatmentSystems installed on vessels to treat ballast water before it is discharged overboard, removing or neutralising harmful aquatic organisms and pathogens.Bow ThrusterA transverse propulsion device installed in a tunnel through the bow of a vessel, used to improve manoeuvrability at low speeds during berthing and unberthing operations.CIICarbon Intensity Indicator, an operational measure introduced by the IMO that rates a ship's annual carbon emissions relative to the cargo carried and distance sailed.EEXIEnergy Efficiency Existing Ship Index, a measure introduced by the IMO to reduce the carbon intensity of existing ships by requiring them to meet a minimum energy efficiency standard.Four-Stroke EngineA type of internal combustion engine that completes a power cycle in four strokes of the piston (two revolutions of the crankshaft).ScrubberAn exhaust gas cleaning system (EGCS) installed on ships to remove sulphur oxides (SOx) and particulate matter from engine exhaust gases, enabling the use of high-sulphur fuel oil while meeting MARPOL Annex VI emission limits.
Back to DictionaryEntry updated May 2026