Hyundai Heavy Industries (HHI), the world’s biggest shipbuilder and a leading marine engine manufacturer, announced the successful completion of a full-scale demonstration test of a ME-GI dual-fuel MAN B&W two-stroke engines in combination with Hi-GAS. HHI’s independent LNG Fuel Gas Supply (FGSS), Hi-GAS system (Hyundai Integrated Gas Supply System) allows marine engines to use diesel and LNG for fuel.
The ME-GI engine, unveiled in May 2011, is a gas-injection, dual-fuel, low-speed diesel engine that, when acting as main propulsion in LNG carriers or any other type of merchant marine vessel, can burn gas or fuel-oil at any ratio, depending on the energy source available on board and dictated by relative cost and owner preference. Mitsui reported adopting twin ME-GI engines as prime movers aboard its concept LNG carrier Double Eco MAX in July 2011, a move that intends to realize a 30% in fuel costs and CO2 emissions.
The Hi-Gas system can be used in all types of vessel such as LNG carriers, container ships, and oil tankers. With the advantages, the system can meet shipowners’ demands and stricter IMO environmental regulations.
As the IMO’s SOx regulations will come into force ECA (Emission Control Area) on after 1 January 2015, the market for the LNG FGSS will be extended to all over the world. Currently, the United States, Norway, and the North Sea are designated as emission control areas.
Earlier this year, MAN Diesel & Turbo, together with HHI-EMD, the engine and machinery division of Hyundai Heavy Industries, presented the first IMO Tier III-compliant diesel engine utilizing EGR (Exhaust Gas Recirculation).
The EGR system represents a milestone in Tier III development that enables the engine to meet IMO Tier III NOx regulations, which will be introduced in ECAs (Emission Controlled Areas) from 2016. The new development means that this strict emissions limit can be met without significantly compromising engine performance.
The EGR system was designed, produced and assembled in close cooperation with HHI-EMD, Alfa Laval, Siemens, GEA and Vestas Aircoil. This close cooperation has ultimately resulted in a reliable prototype engine configuration that MAN Diesel & Turbo states will form the basis for its future low-speed diesel program.