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BUNKER INDEX :: Price Index, News and Directory Information for the Marine Fuel Industry
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Propeller solution offers 'significant' fuel savings

Optimized propeller solution is said to increase energy efficiency and reduce fuel costs.



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Updated on 29 Jan 2010 07:44 GMT

An optimized propeller from MAN Diesel has helped the Scandlines passenger ferry, the M/V Sassnitz, achieve significant fuel savings on its daily sail between Trelleborg, Sweden and Sassnitz, Germany.

Scandlines is one of Europe’s largest ferry companies, a result of the fusion between the largest, national ferry lines in Denmark and Germany. Business is based on the swift and reliable transport of both passengers and cargo on international routes within Danish, German and Swedish waters, as well as further afield to the Baltic states and Finland.

Scandlines operates 17 ferries on 8 routes between 11 harbours in the Baltic Sea. Last year, the shipping company transported more than 17.3 million passengers, 4 million cars, 1 million lorries, 84,000 goods wagons, and 68,000 busses.

Rasmus Nielsen, Scandlines’ project engineer said “We started to look at propeller retrofit solutions as a direct consequence of high fuel prices. Aboard the M/V Sassnitz, we have replaced the propeller blades with a modern, optimised design. Our tests document that this has realised an increased efficiency of no less than 12%. Originally, MAN Diesel had 8-10% as a target, so therefore it’s very pleasing that our measurements show an even better result.”

Nielsen added: “The ship reverses a lot in-harbour and therefore it’s vital for us to attain the optimal propeller blade design. As such, the propeller set-up has been optimised to best fit this particular operating profile without compromising overall efficiency.”

In order to optimise the process, the Sassnitz’s operating profile was thoroughly analysed by MAN Diesel’s propeller design department. MAN Diesel PrimeServ participated in the installation of the new propeller blades on the Sassnitz, which is powered by four MAN L40/54 engines.

“MAN Diesel and Scandlines have cooperated with each other for over 20 years on controllable pitch propellers,” said Brian Grusgaard, Manager of Upgrading and Retrofit Support at MAN Diesel Propulsion After-Sales.

“Scandlines is a front runner within retrofit propeller optimisation and the M/V Sassnitz’s fuel consumption has now been reduced, which is also an environmentally friendly solution. We expect many such retrofits in the future, and are currently in contact with a good number of other ship owners who are very interested in propeller optimisation.”






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Trelleborg
Sassnitz
Denmark
Sweden

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