Wärtsilä propellers and shaft generator system chosen for two new RoRo vessels
The technology group Wärtsilä has been awarded the contract to supply controllable pitch propellers and Power Take Off / Power Take Home (PTO/PTH) shaft generator systems for two new RoRo vessels being built at the Uljanik shipyard in Croatia. The ships have been ordered by the Luxembourg based operator, CLdN Ro-Ro SA. There is an option for an additional two vessels. The orders with Wärtsilä were booked in December 2016 and February 2017.
Wärtsilä will supply the vessels with its latest design, WCP G-hub, which is optimised for high power density. The Wärtsilä scope also includes the propeller shaft line system including propulsion controls, as well as a stern tube package with seals and bearings, intermediate shaft line bearings, and accessories. The propellers will be designed via the OPTIDESIGN method. This uses Wärtsilä’s advanced CFD technology to optimise the interaction between the propeller and hull in order to reach the highest possible performance.
The Wärtsilä shaft generator system is not only able to generate power to the mains from the main engine, but is also able to function as a motor should the main engine be inoperable for any reason, thus enabling the ship to return to port.
Wärtsilä has more than 100 years of experience in the design and production of reliable, high performance propeller systems. Similarly, Wärtsilä has some 50 years of experience in shaft generator system technology. The PTO/PTH solutions for these vessels are, therefore, based on proven and reliable systems. Operational reliability is a key requirement for RoRo companies since they typically are committed to strict timetable schedules.
When delivered, the 211 metre long ships will operate on routes in the North Sea. They will have 5500 metres of lane space for vehicles. The Wärtsilä equipment is scheduled for delivery to the yard commencing in December 2017.
Wärtsilä in brief:
Wärtsilä is a global leader in advanced technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation and total efficiency, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2016, Wärtsilä's net sales totalled EUR 4.8 billion with approximately 18,000 employees. The company has operations in over 200 locations in more than 70 countries around the world. Wärtsilä is listed on Nasdaq Helsinki.
