Container ship order for low pressure dual fuel two-stroke engines
Wärtsilä’s gas-fuelled two-stroke engine has picked up another order, this time for a series of four container ships for German shipowner GNS Shipping which will be built in China.
Each ship, of 1,400teu capacity, will be powered by a 7RT-flex50DF main engine running on LNG or HFO. The four ships – with an option for two more, which Wartsila believes is likely to be exercised – will be built at Yangzhou Guoyu Shipbuilding and are expected to enter service in 2016. The vessels will be managed by Nordic Hamburh, and will operate on long term charter to Containerships of Finland.
According to Wärtsilä, the selection of its duel fuel two-stroke engine is significant as it means that these ships will be the first container ships to use the company’s low pressure, dual-fuel two-stroke technology. When operating in gas mode, the engine is said to meet IMO Tier III without secondary exhaust cleaning systems.
"When our two-stroke, low pressure, DF technology was introduced we knew that we had gone beyond merely extending our DF engine portfolio. This is an engine that really makes a positive difference to the global shipping sector. It not only meets the Tier III requirements when operating with gas fuel, but it also offers considerable Capex and Opex savings. It is truly an engine that fits the needs of today's market," said Rolf Stiefel, director, two-stroke sales, Wärtsilä Ship Power.
"When we selected the engines we looked at two factors; the economics and the environmental footprint. On both counts we found the Wärtsilä RT-flex DF type engine to be the best solution for the specific vessels and trade patterns,” said Dr Rowil Ponta, managing partner of Nordic Hamburg Group.
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