New Wärtsilä trawler design

16 Aug 2016
The new optimised stern trawler designed by Wärtsilä will reduce fuel consumption and notably increase overall vessel efficiency compared to currently available designs. Credit: Wärtsilä

The new optimised stern trawler designed by Wärtsilä will reduce fuel consumption and notably increase overall vessel efficiency compared to currently available designs. Credit: Wärtsilä

Wärtsilä Ship Design has introduced a new optimised stern trawler design that it says will reduce fuel consumption and notably increase overall vessel efficiency compared to currently available designs.

The propulsion system is based on the Wärtsilä 31 engine, which has been recognised by the Guinness World Records as being the world's most efficient 4-stroke diesel engine. The design also incorporates Wärtsilä's hybrid battery technology, which offers a significant energy efficiency improvement over conventional systems by running the engine at optimal load and absorbing many of the load fluctuations using batteries.

The Wärtsilä VS 6215 ST stern trawler design has a unique aft ship layout. The combination of an optimised hull and a propulsion system driven by the Wärtsilä 31 engine is also said to set this design apart from anything seen before in this market segment. In addition to the hybrid battery technology the design also incorporates Wärtsilä's 2-speed gearbox for further reductions in fuel consumption and emissions.

"Stern trawlers can be out fishing for up to 350 days a year and fuel consumption is, therefore, an extremely relevant consideration. Our new design features the very latest technologies, and has been developed to offer the fishing industry lower fuel costs and greater possibilities for profitable operations," says Riku-Pekka Hägg, vice president, Ship Design, Wärtsilä Marine Solutions.

The design of the 82m-long vessel emphasises sea-keeping and stability. The factory capacity is 80T/24h.

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