Dual-fuel propulsion system contract for German ferry

12 Dec 2013
Two of the latest 20DF engines will be used in a new dual-fuel ferry to be built by Fassmer

Two of the latest 20DF engines will be used in a new dual-fuel ferry to be built by Fassmer

Wärtsilä has announced an order to provide a full propulsion package for a new North Sea passenger ferry being built for German company Reederei Cassen Eils.

The ferry, as previously mentioned in The Motorship, will be built at the Fassmer shipyard, for operation between Cuxhaven and Helgoland, close to the ecologically-sensitive Lower Saxon Wadden Sea national park. This has led to the choice of LNG as the prime fuel, so it will use two 1,665kW nine-cylinder Wärtsilä 20DF engines. Wartsila is also supplying its LNGPac fuel bunkering and supply system with 53m³ storage tank as well as reduction gearboxes and two 2.6m CP propellers.

The ferry is scheduled to be delivered and ready for service during the first half of 2015. The new order is in addition to a contract announced by Wärtsilä earlier in 2013 for a dual-fuel retrofitting to the ferry Ostfriesland, which operates in the same waters. 

The engines are the newest version of the 20DF series, with 5% extra power and 7% reduction in fuel consumption in gas mode. The company will, in addition, supply its Cold Recovery System, in which the latent heat of the LNG fuel is used to help power the ship's air conditioning systems. This cuts the electricity consumption in the cooling compressors to provides operational savings and increase the overall vessel efficiency.

"As the vessel must fulfil the IMO regulations regarding SOx and NOx emissions in the North Sea's Emissions Control Area, its operations need to be ecologically friendly with the lowest possible emissions. At the same time, perfect manoeuvrability and reliability are most important. Thanks to Wärtsilä's dual-fuel technology with its built-in redundancy, the vessel can operate very efficiently and without restrictions in the emissions regulated areas. Furthermore it was very important for us to select a reliable and experienced partner. We already know Wärtsilä's capabilities as the company retrofitted our MS Ostfriesland, delivering a full propulsion package with a minimum of interfaces," said Dr Bernhard Brons, chairman of AG EMS, the parent company of Reederei Cassen Eils.

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