The Finnish company will deliver engines, propellers, and fuel supply systems for the four coastal tankers built at the Dutch Ferus Smit shipyard for the Lidköping-based Erik Thun.
The dual-fuel (LNG-diesel) 1A ice-classed 115 m long vessels will receive the 6-cylinder Wärtsilä 34DF dual-fuel main engine, the company's LNGPac fuel supply system, a Wärtsilä Gas Valve Unit, and a Controllable Pitch Propeller (CPP) with a high performance nozzle.
The fuel supply system will be of the Tank Connection Space (TCS) open type that allows natural ventilation. The benefits of this system, Wärtsilä's press release reads, are its reduced weight, a combined cargo heating medium that controls the temperature both inside the TCS as well as for evaporating the LNG, less installation work for the yard, and reduced power supply requirements.
Equipment delivery to Ferus Smit will commence in 2018.
"We have worked closely with Wärtsilä on many projects for more than 45 years, and we recognise their technical expertise and the reliability of their products. We are pleased, therefore, to have Wärtsilä as a partner for this project where efficiency and sustainability are the key essentials," Anders Källson, Erik Thun's Managing Director, said.
Aaron Bresnahan, Vice President, Sales, Wärtsilä Marine Solutions, added, "The fuel efficiency of the Wärtsilä 34DF engine, whether in gas or diesel mode, was a prime consideration in its selection for these next generation tankers. Similarly, the successful track record of both the CPP and LNGPac solutions, and the proven efficiencies that they have demonstrated, were convincing arguments in our favour."