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Marine Log

51/60 DF

November 21, 2006

Dual fuel demo in Augsburg

MAN Diesel has been hosted a series of three two-day customer events at its Augsburg, Germany, headquarters to demonstrate the capabilities of its new 51/60 DF engine (bore 510 mm x stroke 600 mm) .

The engine is a dual-fuel power unit capable of running on boil-off gas from the tanks of LNG carriers or on conventional liquid fuels as back-up.

It has been developed to give LNG carrier operators a more efficient alternative to propulsion systems based on steam turbines and offers an output of 1,000 kW per cylinder.

The full 51/60 DF range comprises inline versions with 6, 7, 8 and 9 cylinders and vee configuration versions with 12, 14, 16, and 18 cylinders.

For the three stagings of its "Dual Fuel Demo--51/60 DF Live on Stage" MAN Diesel invited representatives from the main groups involved in the selection of LNG carrier propulsion systems.

Each event was attended by major shipowners, shipbuilders, ship charterers (oil and gas companies) and marine consultants from the LNG sector, and consisted of two intensive days of lectures, and discussions.

The highlight was a demonstration run of the 51/60 DF engine on the company test stand where guests witnessed the engine at full load and its capability to switch smoothly from gaseous fuel to liquid fuel without interruption of propulsion power.

As well as the technology of the 51/60 DF engine, MAN Diesel also emphasized its overall systems competence in LNG carrier propulsion, supported by gaseous fuel supply system specialists Atlas Copco and classification society Det Norske Veritas (DNV).

The economic aspects of LNG transportation formed a major part of the program, as did the operational safety, where MAN Diesel presented the detailed safety concept it has developed for LNG carriers and which has already been approved in principle by DNV and Lloyds Register.

"The Dual Fuel Demos were an invaluable opportunity to inform the market that we have an engine that fulfils its design targets at the very beginning of its testing and optimisation phase, especially in terms of performance, operational safety and fuel flexibility. Most important, we demonstrated that it will be ready-for-market in time to power those LNG carriers that are currently at the project stage," noted Sokrates Tolgos, Sales Director, cruise vessels and LNG propulsion."

"We have the prime movers needed to power the world in the future," said Dr. Stefan Spindler, member of the MAN Diesel Executive Board. "Gaseous fuels will play an increasingly vital role in the global energy economy and with both the 51/60 DF and its stationary counterpart, the 32/40 PGI, we have the high efficiency, low emissions gas engines needed by both the marine and power plant markets."

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