MHI Receives Order for 7th "Sayaendo" New-generation LNG Carrier

The new LNG carrier will measure 288.0m in length overall (LOA), 48.94m in width, and 11.55m in draft. The 138,000 gross tonnage (75,000 deadweight tonnage) ship will be capable of carrying up to 153,000 m3 of LNG (cargo tank total volume: 155,300m3) in four Moss-type tanks at a service speed of 19.5 knots per hour. The ship will be built at the MHI Nagasaki Shipyard and Machinery Works.

To protect its four Moss spherical tanks, the Sayaendo features a peapod-shaped continuous cover integrated with the ship's hull in lieu of conventional hemispherical covers. This innovative configuration enables reductions in size and weight while maintaining the ship's overall structural rigidity. The continuous cover over the tanks also improves aerodynamics by substantially reducing air resistance that acts as a drag on ship propulsion. For its main power plant the Sayaendo adopts MHI's "Ultra Steam Turbine Plant" (UST), a new turbine that provides higher thermal efficiency through effective use of thermal energy by reheating steam. Through downsizing, weight reduction and hull line improvement, Sayaendo ships achieve a substantial 20% reduction in fuel consumption compared to conventional ships.

With a conventional cover configuration, pipes, wires and catwalks atop the tanks are supported by complex structures. By covering the tanks with an integrated cover and making those supporting structures unnecessary, the new design also improves maintainability. In addition, CO2 emissions are reduced as a result of decreased fuel consumption, and response to environmental issues is further enhanced with installation of a ballast water treatment system, which addresses impact on the marine ecosystem.

In April of this year MHI and Imabari Shipbuilding Co., Ltd. jointly established MI LNG Company, Limited, to handle the design and marketing of LNG carriers. The current carrier order, however, will be handled by MHI because negotiations for its construction (as was the case with the Sayaendo carrier ordered by Mitsui O.S.K. last month) predate the establishment of MI LNG.

After receiving an order for two ships in October 2011, to date MHI has received orders for seven Sayaendo series carriers in total, including the current order. The Sayaendo has been drawing great attention in the marine transport industry and is quickly becoming a leading force in the movement to develop energy-saving "eco-ships" offering enhanced environmental performance – an area in which the Japanese shipbuilding industry is actively engaged.

Owing to the suspended operation of nuclear power plants in Japan in the wake of the Great East Japan Earthquake, as well as a expanded shale gas production in the U.S., demand for LNG and LNG carriers has been expanding not only in Japan but globally. As such, MHI will continue to expand its efforts to secure new orders for Sayaendo and other types of LNG carriers.

Note:The Ichthys LNG Project is a joint venture between INPEX CORPORATION of Japan (operator of the project) and Total S.A. of France, with participation from Japanese gas and electric power companies. The project aims to build a major facility in Darwin to liquefy gas extracted from the Ichthys gas-condensate field located approximately 200 kilometers off the coast of Western Australia. Gas production is scheduled to begin by the end of 2016.