Schottel EcoPeller for new bitumen tanker

The 15,000dwt asphalt carrier will be driven by two Schottel EcoPellers and one TransverseThruster. Designed by Swedish FKAB Marine, the tanker will be deployed in West Africa for asphalt transportation services.

The main propulsion comprises two electrically driven EcoPellers type SRE 560 (2,050 kW each), featuring fixed pitch propellers with a diameter of 3.1 metres, enabling a maximum speed of 13.55 knots at design draft. The 145.8m long by 26.2m wide vessel will also be equipped with a TransverseThruster type STT 2 (600 kW) for maximum manoeuvrability.

The hydrodynamically optimised design is said to allow the EcoPeller to produce maximum steering forces whilst ensuring overall efficiency and course stability. This reduces fuel consumption and lowers both operating costs and emissions.

Tests carried out at the maritime consulting company SSPA Sweden have shown that, when compared to a conventional rudder propeller with nozzle, the EcoPeller increases propulsion efficiency at 12.5 knots by 17% and uses 11% less propulsion power to achieve a top speed of 13.55 knots.