The Methanol-fuelled MAN B&W LGIM Engine

The MAN B&W LGIM engine is the methanol-burn-ing version of our dual-fuel solution for liquid injection of fuels, the ME-LGI engine. This paper describes the service experience from the two generations of ME-LGIM engines, which have accumulated almost 90,000 running hours in total. In the further development of the LGIM engine, a methanol-and-water blending concept has been introduced to the LGIM-W engine, which has passed Tier III compliance tests.

Contrary to the ME‐GI engine, operating on fuel in a gaseous state, the MAN B&W ME‐LGI engine is the dual-fuel solution for low-flashpoint-liquid fuels. The ME‐LGI engine is available in various versions depending on the choice of low-flashpoint fuel (LFF) type. Due to the differences in fuel properties, the ME‐LGI injection system components and auxiliary systems will be different from those of the ME‐GI engine. Despite these differences, the operating principle and safety concept of the ME‐LGI engine are similar to those of the ME‐GI concept

Summary
The MAN B&W ME‐LGI engine is our dual-fuel solution for low-flashpoint liquid fuels injected in liquid form into the engine. Currently, 26 ME-LGIM engines for operation on methanol have been installed on new methanol carriers.