![]() ![]() The design of Sommers is based on Damen’s TSHD 1000 design. Sommers vessel design and technical specifications It will operate as a maintenance dredger at basins and access channels of a number of Russian ports, including Ust-Luga, Big Port St. will build two 6,000 Trailing Suction Hopper Dredgers in Singapore.“The keel laying ceremony of Sommers was held in November 2014 and the vessel is expected to be delivered by the end of 2016.” will build the vessel in its shipyard in Dalian in China. Two double-walled shore-discharging pumps with a total power of 14,000 kW are installed.Ĭosco (Dalian) Shipyard Co.Ltd. The hopper is subdivided in two parts, enabling sailing on even keel, at all loading conditions. The 18,000 m³ vessel is equipped with a single suction pipe, with a submerged dredge pump. ‘Fuel-mapping’ allows us to select the operational regime of the engines specific fuel consumption can be optimized in function of the loading of the engine, and in synchronization with the exhaust gas treatment system. The SCR system reduces NOx emissions to the future EU Stage V level, which is more stringent than the requirements of IMO tier II and IMO tier III. In addition to these measures, an exhaust gas treatment system is installed. This again allows reduction of fuel consumption and emissions. A-symmetric load sharing, ‘fuel-mapping’, and automatically starting/stopping the engines in function of the power demand is implemented. Power is generated by three diesel-driven generator sets. In this way each system runs at its optimal operation point, resulting in lower fuel oil consumption, and lower emissions. All main drives, including the main propellers are electrically driven via frequency converters. This is exceptional for a hopper dredger as large as the 18,000 m3 vessel. Lower fuel oil consumption and lower emissionsīoth hopper dredgers are in fully diesel-electric execution. “These compact and medium-sized vessels are provided with features making it the best in their class for efficiency and emissions”, says Robby de Backer, Director Newbuilding Department. ![]()
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