Japan Warms To ME-GI Concept
Mitsui demonstrates first produced 6S70ME-GI engine; leading to increased marine orders
Mitsui, one of MAN Diesel & Turbo’s oldest licensees, held a successful demonstration in April of the first Mitsui MAN B&W 6S70ME-C-GI engine produced at its Tamano, Okayama, Japan, works.
The dual-fuel, two-stroke, gas-injection engine is officially designated as ME-C-GI (M-type, Electronically Controlled, GI for Gas Injection) in the MAN Diesel & Turbo low-speed portfolio. Depending on relative price, availability and environmental considerations, the ME-GI engine gives shipowners and operators the option of using either HFO or gas – predominantly natural gas but also LPG and methane, the company said.
The ME-GI uses high-pressure gas injection that allows it to maintain the numerous positive attributes of the low-speed engine, dispensing with the need for power de-rating and eliminating the significant problem of methane slip and resulting CO2 emissions, MAN said.
Mitsui is the second MAN Diesel & Turbo two-stroke licensee to demonstrate the ME-GI concept after Hyundai did so in Korea in November 2012. Shortly afterwards, TOTE – the American shipping company – ordered two 8L70ME-GI engines to power two 3100 TEU newbuilding container ships with an option for three additional vessels. That announcement represented the first commercial order for the engine type.
The following month, MAN announced another order by Teekay LNG Partners L.P., an offshoot of international shipping group Teekay Corp. The company said it placed an order for two LNG carriers powered by 2 × 2 5G70ME-GI engines – including an option for three further ships – as part of its strategy to expand its operations in the LNG and LPG shipping sectors.
The first ME-GI engine was unveiled at MAN’s Copenhagen Diesel Research Centre in May 2011.