Thu 2 Nov 2017 10:42

MAN dual-fuel L51/60DF engine granted type approval


Dual-fuel engine can act as both main and auxiliary engine.



MAN Diesel & Turbo reports that its MAN L51/60DF engine successfully passed its Type Approval Test (TAT), which ran from October 17 to 20 at its plant in Augsburg, Germany.

Augsburg's testbed no. 20 hosted the test programme of a nine-cylinder version of the engine that ran on fuel oil (DMA) and natural gas.

The TAT tested the engine's dual-fuel safety concept, including a test of its pilot fuel system. The engine's gas supply system as well as its alarm and safety system were also examined.

The TAT also tested the integration of MAN Diesel & Turbo's proprietary SaCoSone engine control system with the engine.

The nine-cylinder test engine has an output of 1,150 kilowatts (kW) per cylinder at a nominal speed of 500-514 revolutions per minute (rpm).

The MAN L51/60DF engine can be employed both as a marine main engine and auxiliary engine.

Lex Nijsen, Head of Four-Stroke Marine, MAN Diesel & Turbo said: "The MAN L51/60DF, with its improved rated output and new features such as gas-start capability, is a welcome addition to the ranks with the flexibility to act in a main or auxiliary capacity.

"Whether operating on fuel oil or gas, I'm certain its efficiency and high power output will be appreciated by the market," Nijsen added.

MAN said "the industry's main classification societies" were also present at the Augsburg TAT.

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