P&E produces lively but friendly discussion
The first day of the 35th Motorship Propulsion & Emissions Conference continued in Copenhagen, with some 130 delegates in a full conference hall at the Hilton Airport hotel.
Following our last report, the day continued with a session covering propellers. Jukka Varis of ABB outlined the hydrodynamic design of the latest Azipod units with a view to higher efficiency and saving fuel and emissions, and this was followed by a paper from Tobias Huuva of Berg Propulsion, about slow steaming experience with feathering propellers on twin-screw ships. Jens Ring Nielsen of MAN Diesel & Turbo took an overall view of optimising the propulsion system, including the use of Kappel propellers, rudder bulbs etc.
This took us to the lunch break, after which we had a change of chairman, Jakob Buus Petersen of ABS. LNG powered ships came under the spotlight, starting with the Viking Grace, now in service, the LNGPac fuel system of which was described by Yves Bui of Wärtsilä. A case study of another ferry, Stavangerfjord, soon to enter operation, was given by Axel Andenaes of Rolls-Royce. Discussions can get heated between these two companies, each with their own approach to this emerging technology, but on this occasion calm and good sense prevailed.
After an early coffee break, hybrid and electric drive technology was next on the agenda, with Narve Mjos of DNV presenting battery-powered ships, Jakob Bjelland of Wärtsilä looking at drive technology, and Kay Tigges of Siemens looking at optimising the whole electric plant.
The day was completed with a look at fuelling and lubricating today’s fleet, particularly with regard to 2015 and the following 0.5% global sulphur cap. Fuel availability and related issues were discussed by Lintec’s Michael Green; how lubricants will deal with imminent fuel regulations, particularly single grades of oil able to cope with widely varying sulphur content in fuel, was the subject of Serge Dal Farra of Total Lubmarine’s paper.
Following a question and answer session, the chairman closed the first day, and the delegates took the bus for the conference dinner at the Allegade 10 restaurant.
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