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Wartsila in first optimised maintenance tie-up for LNGPac system

Agreement with Viking Line is first for Wartsila's complete gas handling system for LNG-fuelled ships.



The Viking Grace was the first passenger ferry to utilise LNG as a fuel source. Image credit: Wartsila


Updated on 19 Apr 2018 10:14 GMT

Technology group Wartsila has signed an optimised maintenance agreement with Finnish ferry company Viking Line for the LNGPac system installed aboard the passenger ferry Viking Grace.

The tie-up is the first optimised maintenance agreement to have ever been made for the Wartsila LNGPac - a complete gas handling system for ships fuelled by LNG.

The accord also includes condition-based maintenance (CBM) and online support for the Wartsila LNGPac system.

The optimised maintenance agreement, signed in late 2017, enables the planning and scheduling of Viking Grace's maintenance procedures to suit the ship owner's business operations. This is designed to improve long-term cost predictability, increase performance reliability and maximize the vessel's uptime - benefiting the vessel's owner as well as its passengers.

A new feature for the LNGPac agreement is Wartsila's condition-based maintenance system, which gathers information on the average gas flow, the temperatures of the heat exchangers, the use of energy, and the pressure of the LNG pumps. The data helps in planning and scheduling the maintenance procedures that improve cost predictability and uptime.

Wartsila LNGPac is a complete fuel gas handling system for LNG-fuelled ships. On the Viking Grace, it comprises onboard LNG bunkering, two storage tanks, and handling equipment with related safety and automation systems that have been developed by Wartsila.

In addition to the LNGPac, Wartsila has delivered to the Viking Grace four Wartsila 50DF main engines running on LNG, the transverse bow and stern tunnel thrusters, two stainless steel fixed pitch, built-up main propellers with complete propeller shaft lines and environmentally sound shaft line seal systems.

Since the Viking Grace was taken into operation in 2013, Wartsila has been in charge of its maintenance. In February 2018, Wartsila and Viking Line agreed on the extension of the optimised maintenance agreement for Viking Grace, covering both CBM and online support, for another five years.

"Environmental considerations are, along with the need to optimise operational efficiency, high on the agenda of Viking Line," commented Ulf Hagstrom, Senior Vice President, Marine Operations & NB at Viking Line Oyj.

"Wartsila is a forerunner in dual-fuel and other environmentally sound technology and has repeatedly shown its excellence in technical assistance and service for Viking Line and Viking Grace. With this agreement, we will be able to utilise the full potential of Wartsila's knowledge and know-how."

The Viking Grace was the first passenger ferry to utilize LNG as a fuel source. It can accommodate 2,800 passengers, and sails between the Baltic Sea ports of Turku in Finland and Stockholm, Sweden.






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