Press release December 7, 2010. Also available in Swedish »


Energy-saving, cost effective and safer sea transportation in sight
- Swedish double hull innovation receives class approval for commercial use
The classification company Germanischer Lloyd has today approved and certified Fagerdala Marine Systems AB’s technology for double hull vessel designs. The double hull system, which considerably reduces energy consumption and maintenance costs for cargo vessels as well as for oil tankers and yachts, can now therefore be adopted commercially after a verification process that has taken 18 years.
Fagerdala Marine Systems AB, part of the Fagerdala World Foams Group, has been developing and testing a new system of double hull vessel designs for a number of years. The system, devised by Swedish innovator Sven Jönsson, is based on a first layer of expanded plastic being applied to a metal hull which is then levelled and covered with an outer layer of fibre glass laminate. The result is a structurally reinforced hull that has thermal insulation, sound-insulating, vibration-damping and crash resistant properties as well as being virtually maintenance free, which bodes extremely well for cost-effective, energy-saving and safe sailing.
Now that the classification company Germanischer Lloyd has given its approval, the double hull system can be adopted commercially and will benefit ship, yacht and other vessel design engineers all over the world.
“The system not only paves the way for improved maintenance costs and opportunities for more advanced styling of hulls but also for reduced energy consumption. The flexibility of the expanded plastic layer allows for greater freedom of hydrodynamic design, which, combined with the thermal insulation effect, can effectively reduce propulsion costs and energy costs,” says Dag Landvik, CEO of Fagerdala World Foams.
“In the course of tough, practical tests, the hull system has proved to be extremely durable and robust. It has been in use for18 years as a trial on the yacht United Spirit, and its proven capacity to withstand wear and major differences in climate conditions is impressive to say the least,” confirms Karl-Axel Olsson, professor at The Royal Institute of Technology in Stockholm (KTH), which conducted the initial testing of the hull system.
The hull system has aroused interest both in merchant shipping circles and in naval circles, where the system’s acoustic damping, reduced thermal radiation and reduced detectability by radar are of particular interest. The hull system has also proved to have a broader area of application than vessel designs. The double hull system is a key component of the offshore company Hexicon AB’s development of floating platforms for renewable and offshore-based power generation.
“The durability and associated low maintenance costs that the hull system offers are among the most important factors behind the ability of the Hexicon concept to generate power offshore with a previously unattained level of profitability,” according to Anders Tunbjer, Managing Director of Fagerdala Marine Systems AB and Hexicon AB.
Read the full press release »
For further information, please contact:
Anders Tunbjer, Managing Director, Fagerdala Marine Systems AB and Hexicon AB,
tel.: +46 (0) 705 603050.
Dag Landvik, CEO, Fagerdala World Foams AB.
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Further information about the hull system is available at www.fagerdalamarine.se.
Further information about the concept of offshore renewable power generation is
available at www.hexicon.eu.
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