SEPTEMBER 12, 2016 — Wärtsilä is to supply an extensive range of equipment for the four LNG-fueled tankers ordered at China's Avic Dingheng shipyard in China, on behalf of three Swedish owners (see earlier story).
Two vessels have been ordered by Furetank and one each by Älvtank and Thun Tankers, a fully owned subsidiary of Thunbolagen. The vessels will be commercially managed by Furetank Chartering in the Gothia Tanker Alliance.
The ships will meet IMO Tier III requirements and LNG will be the primary fuel.
For each vessel, Wärtsilä will supply a 9-cylinder 34DF dual-fuel main engine, two Wärtsilä Auxpac 20 auxiliary engines, the gas valve unit, a controllable pitch propeller (CPP) compliant with Ice Class 1A, a high performance nozzle, a Wärtsilä Energopac rudder system, a Wärtsilä selective catalytic reduction (SCR) system for the auxiliary engines, 12 Wärtsilä deepwell cargo pumps, and two Wärtsilä deepwell ballast pumps with a frequency control system.
Wärtsilä will also supply the vessels with a gearbox and shaft alternator with a "take-me-home" functionality that provides propulsion power to the auxiliary engine should the main engine be out of operation for any reason.
Delivery of the Wärtsilä equipment is scheduled to commence in spring 2017.
To achieve optimal propulsion efficiency for the vessels, Wärtsilä utilized its OPTI Design methodology. This uses extremely accurate information via computational fluid dynamics (CFD) analysis to calculate the performance of the propeller, nozzle and rudder, including their interaction with the vessel's hull, enabling a design that gives a perfect match between the various propulsion elements.
"Wärtsilä is the only company in the world capable of providing such a comprehensive scope of marine solutions from its own portfolio. Being a total solutions provider brings significant added value to our customers since delivery and scheduling risks are reduced, and the various systems can be integrated to achieve optimal performance and lower operating costs," says Aaron Bresnahan, Vice President, Sales, Wärtsilä Marine Solutions.
"These environmentally friendly tankers will run mainly on LNG fuel. No other company can match Wärtsilä's experience and reference list in LNG solutions, and we are very confident that the Wärtsilä technology and broad range of solutions are the right choice," says Lars Höglund, Managing Director of Furetank.
The vessels will be built to a design, developed by Swedish ship designer FKAB together with Furetank. They put a special focus on minimizing the impact on the environment, with a close to 50 % reduction in CO2 emissions over similar class vessels built between 2002 and 2012.
Wärtsilä will deliver a comprehensive scope of marine solutions from its own portfolio to four new LNG fuelled tankers for Swedish owners.