Rolls Royce to push Grimaldi’s new Chinese ro-ro
The supply of 9 fully integrated systems is worth some 30 million euro. Wärtsilä will provide Balearia with systems to be installed on its new LNG catamaran
Rolls-Royce Commercial Marine has won a contract to deliver the propulsion system to 9 vessels to be built by Nanjing Jinling Shipyard Co in China for Italian Grimaldi Group. The contract value is 300 million NOK, equal to some 30 million euro; delivery of the propulsion products are scheduled from 2019 and onwards to the completion of the last vessel in the series in 2021.
The Ro-Ro vessels are designed by Knud E. Hansen in Denmark to transport over 7,800 linear meters of rolling units, equivalent to about 500 trailers, and are named the GG5G Grimaldi Green 5th Generation, being hybrid powered by combining use of traditional fossil fuels during operation and battery power when in port.
The delivery from Rolls-Royce includes steering gears and the Promas system, which integrates the propeller and the rudder into a single system to optimise hydrodynamic efficiency.
A special hubcap is fitted to the propeller and streamlines the flow onto a bulb that is added to the rudder, effectively reducing flow separation immediately after the propeller. The result is an increase in propeller thrust as previously wasted energy is recovered from the flow. The addition of the bulb on the rudder also streamlines the flow aft of the rudder, further reducing drag. Promas is a well proven a product developed and tested at the Rolls-Royce facility in Kristinehamn in Sweden; while the steering gear is produced at the company’s facility in Brattvåg, Norway.
Wärtsilä will provide Balearia with systems to be installed on its new LNG catamaran
The largest ever high-speed catamaran, which will operate on LNG fuel, will feature a fully integrated scope of supply from the technology group Wärtsilä. The 125 metres long vessel is being built at the Armon Gijón shipyard in Spain for Spanish ferry operator Baleària.
The ability of Wärtsilä to deliver a fully integrated scope, including the engines, the waterjets, and the LNG fuel storage and supply system, together with all the related auxiliary systems, was an important option for both the owner and shipyard to sign the contract in the second quarter of 2018.
The vessel will operate on 4 highly efficient Wärtsilä 31DF dual-fuel engines, four Wärtsilä waterjets, and the Wärtsilä LNGPac fuel gas storage and supply system; it will have a service speed of 35 knots, and a top speed of 40 knots. The storage tanks give the ferry a range of 400 nautical miles; the equipment is scheduled for delivery to the yard in the latter half of 2019.
When delivered, the ferry will be capable of carrying 1200 passengers and 500 cars, or trucks covering a length of 500 metres plus 250 cars.
Baleària will invest 90 million euros in the construction of this fast ferry, which is scheduled to start the aluminum cut next December and to enter into service in the summer of 2020.