Propulsion of LNG Carriers by MAN B&W Two-Stroke Diesel Engines

-ME and ME-GI Diesel Engines for LNG Carriers

Abstract

Propulsion systems of LNG carriers have, until now, been dominated by steam turbine plants. However, MAN B&W Diesel has recently succeeded in getting orders for two-stroke diesel engines in LNG carriers, and a general change from steam turbine propulsion to other types of propulsion seems under way as shipyards update LNG carrier designs. MAN B&W Diesel offers two different two-stroke diesel engine solutions for propulsion of LNG carrier, viz. an ordinary fuel oil diesel engine with a reliquefaction plant, and a dual fuel ME-GI diesel engine. This paper provides a general description of these solutions, focusing on items that make them different from ordinary ME two-stroke diesel engines, and of the installation thereof.