Ice test of the world’s largest LNG RoRo

 

There are a lot of challenges in designing the world’s first mega RoRo with ice class 1A Super and multi-fuel engines to WALLENIUS SOL. Therefore, our design team went to Helsinki together with a seven meter long ship model. 

WALLENIUS SOL was founded in April 2019. Its mission is to create an environmentally smart and efficient infrastructure for Finnish and Swedish industry in the Gulf of Bothnia, the Baltic Sea and the North Sea. The company is a partnership between our sister company Wallenius Lines and Swedish Orient Line, SOL.

A real ice breaker

The temperature in the Gulf of Bothnia can drop to minus 35 degrees Celsius in the winter. The cold combined with troublesome ice ridges, put extreme demands on the hull and propellers of the ship. To assess how the ship will be able to handle these sometimes arctic conditions, the design team went to the ice testing facility Aker Arctic in Helsinki, Finland. There, a seven meter model drove through water with artificial ice.

“We tested the vessel’s capability to follow and break out from a channel in extreme ice conditions and ability to penetrate thick ice ridges. We are happy with the results which gives us good confidence in the design we have”, says Carl-Johan Söder, Naval Architect at Wallenius Marine.

The ships will now be built in CIMC Raffles, which is one of the highest ranked shipyards in China. Steel cutting is planned in the spring of 2020. Wallenius Marine is managing the whole building process on behalf of the owner and will have a team of ten persons stationed in China. After two and half years, in the autumn of 2021, the new Mega RoRo’s will be sailing at the Baltic Sea.

The new ships in detail

Length: 241,7 meter
Width: 35,2 meter
Max Draught: 8,8 meter
Dead Weight: 26 900 ton
Optimized for: Transporting of paper products for the forest industry but can also be used other RoRo loads.
Engines: Multi-fuel (compatible with LNG, LBG, diesel and synthetic diesel)

Environmental advantages

50% reduction in fuel consumption per transported unit
60% reduction in emissions of greenhouse gases per transported unit
98% reduction in sulfur dioxides (SOx )
85% reduction in nitrogen oxides (NOx )
95% reduction in emissions of particles

Source: Report U6059, Swedish Environmental Research Institute

Knowledge