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KONGSBERG SUPPLIES PROPULSION FOR GREEN CRUISE SHIP

KONGSBERG SUPPLIES PROPULSION FOR GREEN CRUISE SHIP

Tuesday, December 14, 2021 

Norwegian cruise company Havila Kystruten is beginning its new 12-day sailing route along the Norwegian coast between Bergen and Kirkenes, with its flagship vessel 'Havila Capella' relying upon Kongsberg Maritime (KM) technology for power and propulsion.

As with the other three cruise vessels in the Havila Kystruten fleet, Havila Capella has been designed by HAV Design, and deploys integrated, energy-efficient KM solutions which reflect the company’s commitment to operate the most eco-friendly ships in a precious environment of outstanding natural beauty. Kongsberg will deliver to Havila Kystruten a total of 16 Bergen gas engines, which apply variable turbo geometry to provide an optimal response at all speeds. Bergen gas engines are said to produce a fuel efficiency rate of approximately 50%. The LNG fuel for these engines reduces CO2 by 25% and NOX by 90%, on top of which the hybrid battery power package is capable of providing up to four hours of zero-emissions running time.

Ottar Ristesund, KM SVP sales, said: “All told, greenhouse gas emissions from our Bergen gas engines are around 20% lower than those from similarly-rated diesel engines, even when we take the methane slip, the unburned fuel, into consideration. They are far cleaner to operate, and users report a reduction of as much as 10% in maintenance costs compared to diesel engines.”

Havila Capella’s main propulsion, meanwhile, stems from a KM Azipull-PM (Permanent Magnet) unit with an L-drive configuration. Noted for its hydrodynamic efficiency, the AZP-PM offers the advantage of a compact installation footprint as its motor is housed within the mounting flange diameter.

Similarly, the KM permanent magnet technology used on Havila Capella’s tunnel thrusters combines space-saving with low-noise, low-vibration and high-performance operation. The tunnel thrusters’ fast response increases operability and manoeuvrability. Meanwhile, stays supporting the central shaft are designed to recover some of the swirl energy generated by the propeller, providing additional thrust and improving the energy efficiency of the hull. Wear and tear is substantially reduced as the PM thrusters contain fewer rotational components.

Bent Martini, CEO, Havila Krystuten, said: “Our priorities are intertwined: enabling our customers to enjoy the smoothest, safest and most awe-inspiring cruises while preserving the unique marine habitats off Norway’s coasts. We’re grateful to Kongsberg Maritime for providing us with the technology that allows us to give our passengers an unforgettable, enriching experience while simultaneously minimising environmental impacts.”

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