Sep 22, 2022 | Marine propulsion & machinery news

Italian yacht builder Wider has selected a pair of MAN 12V175D-MEV marine variable-speed genset engines for its new hybrid superyacht, the Moonflower 72. T

he Wider serial hybrid propulsion system is made up of two 1,860 kW-rated variable speed engines and 1 a MWh battery bank. In combination with the permanent magnet alternators providing electric power for a DC grid, the MAN 175D engines have been selected to guarantee the lowest fuel-consumption at variable speed. Both engines will be supplied along with MAN Energy Solutions’ compact SCR exhaust gas after-treatment system, enabling the vessel to meet IMO Tier III emission standards. MAN Energy Solutions’ production facility in Denmark will deliver the engines to Wider in April 2023.

Marcello Maggi, head of Wider paent company W-Fin, said: “The Wider Engineering Team is extremely excited about this new and very innovative project. The choice to equip the project with only two diesel generators gave us the possibility to optimise the space and the layout of the engine room without compromising performance and safety. In fact, the focus was to increase the global efficiency of the complete propulsion system and we believe that – with the combination of the Wider Management System, batteries and especially the MAN 175D engine – we have found the right balance. As such, this set-up has a further 7% optimization on the already excellent performances of previous Wider projects”.

Luciano Cardini, Head of Wider Engineering, said: “To comment further on the generators’ amazing features, we would note the double shock-absorbing installation that cuts structural vibrations completely, a very compact SCR system integrated into a very innovative exhaust system, and a TBO of an amazing 30,000 hours.”

Florian Keiler, Sales Manager High-Speed, Worldwide Yacht applications, MAN Energy Solutions, said: “This is the latest reference for the MAN 175D engine within the superyacht market. It clearly demonstrates that the MAN 175D is ideally suited to such an innovative application, where its technical and economical credentials stand it in good stead, while its compactness, performance and operational cost benefits are all seen as key aspects for our customers.”

MAN Energy Solutions developed the MAN 175D high speed engine range in three variants of 12, 16 and 20 cylinders. It is available with an output ranging from 1,500kW to 4,400kW and is optimised for propelling ferries, offshore support ships, tugs and other working vessels. Other market areas, such as superyachts, planing yachts and naval marine applications are also served by additional engine variants. It has been designed from the outset for low fuel-consumption and compliance with the latest and future exhaust gas emission standards.

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