Wärtsilä Dual-Fuel Engines for 153,000 m3 LNG Carrier
Wärtsilä Corporation has been awarded a contract by the French shipbuilder Chantiers de l'Atlantique to supply dual-fuel main engines for a new 153,000m3 LNG carrier. The LNG carrier has been ordered by the French gas distributor Gaz de France for delivery in October 2005. It will be employed in the shipment of liquefied natural gas (LNG) from Norway or Egypt, but is also designed for the alternative of trading on the spot market. The vessel will have gas-electric propulsion, with four dual-fuel engines driving generators to supply electricity for the single propeller plant. The engines will burn boil-off cargo gas with a small quantity of liquid fuel for ignition. They will mainly can run on gas with liquid fuel as back-up, and can be switched over automatically as the need arises.
Gas Ships: Dual-fuel Diesel Engines for LNG Carriers
Recent orders for Wärtsilä 50DF dual-fuel engines for two LNG carriers, eight engines in all, are no coincidence. This engine type promises benefits for LNG operators including larger cargo capacity, lower fuel consumption, higher flexibility in operation, and lower emissions. Gaz de France is the first to take the plunge. Until now, steam turbines have dominated as propulsion machinery for LNG carriers, with their apparent reliability and the ease with which they can burn the boil-off gas from the ship's cargo tanks while at sea. The low fuel efficiency of steam turbines, however, has already encouraged almost all other shipping segments to switch to diesel-powered ships.
Wartsila Awarded Contract
shipyard Chantiers de l'Atlantique. Due for delivery in 2004, this newbuilding is breaking away from traditional practices in the propulsion of LNG (liquefied natural gas) carriers. It will be the first LNG carrier to be powered by electric propulsion, and one of few to have internal-combustion engines instead of the more usual steam turbine plant. The four dual-fuel engined generating sets will meet all the ship's propulsion and shipboard electrical requirements. engines each develop 5700 kW at 514 rev/min. This membrane-type vessel (GTT-CS1) will be employed transporting LNG from Skikda in Algeria to Fos near Marseilles. take about one week at a service speed of 16 knots, which can be achieved with three of the four generating sets.
LNG Breakthrough For Wärtsilä
Wärtsilä Corporation received an order to supply four Wärtsilä 6L50DF dual-fuel engines to power a 75,000 cu. m. LNG carrier contracted by the French gas holding company Gaz de France at the French shipyard Chantiers de l'Atlantique. Due for delivery in 2004, this newbuilding is breaking away from traditional practices in the propulsion of LNG (liquefied natural gas) carriers. It will be the first LNG carrier to be powered by electric propulsion, and one of few to have internal-combustion engines instead of the more usual steam turbine plant. The four dual-fuel engined generating sets will meet all the ship's propulsion and shipboard electrical requirements. The Wärtsilä 6L50DF engines each develop 5,700 kW at 514 rpm.
