TK LNG Partners orders four ultra-long-stroke dual-fuel engines from MAN Diesel & Turbo for LNG carriers, options for further six
24 December 2012
Teekay LNG Partners L.P. (Teekay LNG), an offshoot of Teekay Corporation, the international shipping group, has placed an order for two LNG carriers powered by 2 × 2 5G70ME-GI dual-fuel, two-stroke, gas-injection engine, including an option for three further ships.
The newbuildings will be constructed with M-type, Electronically Controlled, Gas Injection (ME-GI) twin engines, which are expected to be significantly more fuel-efficient and have lower emission levels than other engines currently being utilized in LNG shipping.—Peter Evensen, CEO of Teekay GP LLC
|Illustration of the 5G70ME-GI engine. Click to enlarge.|
The Teekay LNG engines are based on the new ultra-long-stroke G-type concept to deliver an even higher overall propulsion plant efficiency. The G-type engine has gained the fastest market acceptance of any engine in the MAN B&W portfolio.
The ships will be constructed by Daewoo Shipbuilding & Marine Engineering CO., LTD., (DSME) of South Korea. Teekay LNG intends to secure long-term contract employment for both of the two 173,400 cubic meter LNG carriers prior to their delivery in the first half of 2016.
The new order follows the early December announcement that TOTE, the American shipping company, has ordered two 3,100 TEU newbuilding container ships, each powered by an 8L70ME-GI engine, with an option for three additional vessels. The announcement represents the first commercial order for the engine type, officially designated as ME-C-GI (M-type, Electronically Controlled, GI for Gas Injection) in the MAN Diesel & Turbo low-speed portfolio.
The ME-GI uses high-pressure gas injection that allows it to maintain the numerous positive attributes of the low-speed engine that have made it the default choice of the maritime community. The ME-GI dispenses with the need for power derating and eliminates the significant problem of methane slip (and resulting CO2 emissions).
Unveiled at a major event at MAN Diesel & Turbo’s Copenhagen Diesel Research Centre in May 2011, the ME-GI engine represents the culmination of many years’ work that began in the 1990s with the company’s prototype MC-GI dual-fuel engine that entered service at a power plant in Chiba, near Tokyo, Japan in 1994.
Depending on relative price and availability, as well as environmental considerations, the ME-GI engine gives shipowners and operators the option of using either heavy fuel oil (HFO) or gas—predominantly natural gas but also LPG and methane.
MAN Diesel & Turbo sees significant opportunities arising for gas-fueled tonnage as fuel prices rise and modern exhaust-emission limits tighten.
Following efficiency optimisation trends in the market, MAN Diesel & Turbo has thoroughly evaluated the possibility of using ever larger propellers and thereby engines with even lower speeds for the propulsion of ocean-going vessels.
Such vessels may be more compatible with propellers with larger diameters than current designs, and facilitate higher efficiencies following adaptation of the aft-hull design to accommodate a larger propeller. It is estimated that such new designs offer potential fuel-consumption savings of some 4-7%, and a similar reduction in CO2 emissions.
TrackBack URL for this entry:
Listed below are links to weblogs that reference TK LNG Partners orders four ultra-long-stroke dual-fuel engines from MAN Diesel & Turbo for LNG carriers, options for further six: