MAN Cryo Supplying Icebreaking RoRos With Fuel Gas Supply System

MAN Energy Solutions’ marine liquefied natural gas (LNG) fuel-gas-system manufacturer MAN Cryo will supply the LNG fuel-gas supply systems for two RoRo newbuildings in China at Yantai Raffles shipyard.

MAN Energy Solutions has also been selected to supply two 9L28/32DF dual-fuel auxiliary engines to each vessel for Wallenius SOL, the Swedish shipping line. Wallenius SOL said the vessels will run on LNG, making them among the most environmentally efficient vessels in that part of the world. Upon construction, the vessels will be the largest to meet Finnish/Swedish ice class 1A Super standard, ensuring year-round service in the frozen Gulf of Bothnia.

The 242-m newbuildings will have a sailing speed of 20 knots and a capacity of 5800 lane m. Delivery of the vessels is scheduled for 2021 and the order includes an option for two further vessels. Wallenius SOL is a shipping line formed by Swedish concerns Wallenius Lines and Svenska Orient Linien (SOL).

“These RoRos will operate in a sensitive, sulfur-emission-control area in harsh winter conditions where a reliable LNG fuel-gas supply system is of the utmost importance,” said Louise Andersson, head of MAN Cryo. “We are very pleased that both shipyard and shipowner trust us to deliver the fuel-gas supply system for such unique vessels.”

MAN Cryo’s scope of supply for the vessel covers:

  • Two 685 m3 vacuum tanks including tank connection spaces (TCSs) with LNG fuel pumps
  • bunker stations with a capacity of 500 m3/h
  • automation, emergency shut-down and gas-detection systems.

Under-deck mounted tanks with air locks are designed to allow the amount of fresh air sucked into the tank rooms to be reduced to a minimum. This is an important consideration in the tough winter conditions the ships are set to operate in, where the amount of cold air in the vessels needs to be kept to a minimum, the company said.

According to MAN, the new vessels will bring many environmental benefits compared with standard, heavy-fuel RoRos including reduced fuel consumptions and lower emissions:

  • 50% fuel consumption per tonne-km thanks to larger vessels, more efficient engines and ship design
  • 60% decrease in emissions of greenhouse gases per transported unit in CO2 equivalents
  • 98% decrease in sulfur dioxide (SOx) emissions
  • 85% decrease in nitrogen oxides (NOx)
  • 95% decrease in particulate emissions.

Yantai CIMC Raffles shipyard belongs to CIMC group, which is a global energy and logistic company listed in both Shenzhen and Hong Kong. The company including three yards and four engineering centers with two (Bassoe Technology AB and Brevik Engineering AS) in Scandinavia, have built multiple international offshore and marine projects. The ice-classed RoRos are the first ships the shipyard is building for a European owner.

Wallenius SOL is a joint venture shipping company formed by Wallenius Lines and Swedish Orient Linien (SOL). It operates scheduled services from main ports in the Gulf of Bothnia to and from Europe/UK with a main cargo of paper products, as well as steel, trailers and containers. Wallenius SOL has ordered up to four RoRo vessels running on LNG power, to be built between 2019-2021 by Wallenius Marine. The newbuildings in this new order will join an existing fleet of five RoRo vessels.

MAN Energy Solutions took over fuel-gas specialist Cryo AB in 2015 and and fully integrated it into its business. Under the brand MAN Cryo, the company offers systems for the storage, distribution and handling of liquefied gases.

 

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