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HANSA 04-2019

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Schiffstechnik | Ship

Schiffstechnik | Ship Technology © Rolls-Royce Pod drives/rim thrusters survey 2019 While some makers of pod drives and rim thrusters have used the last year to optimise their portfolios, one company developed a completly new series of pods. HANSA gives an overview of the market Rolls-Royce’s new ELegance pod More efficiency, more power, more electrification – the booming cruise ship market with its special efficiency, comfort, ice class and maneuverability needs as well as the ferry sector, working on cleaning up its act, are driving the recent development of pod drive technology. Rolls-Royce’s new ELegance iceclass pods illustrate this trend. The R & D process took four years resulting in a completely new podded propulsion system, designed to meet customer demand for more choices in the electric propulsion segment. The new pods are available in a range of 1.5 to 7 MW and are best suited for the cruise, passenger and ferry segments, but also for other applications like rigs, tugs and workboats. Both pod types, open propeller or ducted, build on the experience gained from the Mermaid range’s more than 4,000,000 operational hours and data from Rolls-Royce’s range of mechanical thruster products. ELegance thrusters incorporate the latest in permanent magnet (PM) motor technology. Per Nahnfeldt, General Manager Product – Electric Propulsion, says: »Based on an extensive system optimisation approach, this has resulted in a pod that optimises the tradeoff between electrical, mechanical and hydrodynamic efficiency, utilizing our expertise within all these fields. The PM technology and the motor fitting in the casing, inherited from the Mermaid range, allowed us to create a sleek, slimline pod, which adds significantly to hydrodynamic efficiency.« The pods are delivered together with Rolls-Royce’s Active Front End Converters, either fed from a conventional 690 V system or through transformers on a medium voltage distribution system, such as the Rolls-Royce SAVe Step solution. Batteries can be integrated to perform load smoothing on the engines and increase redundancy. SAVe allows a power-generating capacity reduction by up to 30 %. The pods meet 1A Super and Polar Code 6 ice-class requirements. Rolls-Royce is now building a 4.6 MW unit. An order for pod maker ABB from Viking Line also serves to illustrate the recent market dynamics: ABB’s Twin XO 2100- type Azipod units will be installed on the new Viking Line cruise ferry. The 63,000GT vessel with a capacity for 2,800 passengers being built in China is the first cruise ferry to be fitted with this technology. The XO features intelligent control systems and advanced condition monitoring. A remote diagnostics system enables connectivity to ABB Ability Collaborative Operation Centers. The Azipod XO units are also designed to match the ship’s ice class 1A Super notation. The following pages provide you with an overview of available products in the pod/rim thruster segment n 44 HANSA International Maritime Journal 04 | 2019

Schiffstechnik | Ship TechnologyPOD 1 Power Relate / Maximum kW Speed min -1 Type Related Thrust kN Propeller open mm Propeller nozzle mm ABB Zurich, Switzerland, online: www.abb.com, e-mail: thomas.voelkel@de.abb.com 1300 – 2300 240 – 365 Azipod CO 980 1900 – 2600 2100 – 3900 160 – 280 Azipod CO 1250 2400 – 3500 2200 –4500 120 – 205 Azipod CO 1400 2700 – 4000 2700 Azipod CZ 1250 A 3300 Azipod CZ 1250 L 4500 Azipod CZ 1400 L 4700 Azipod CZ 1400 XL 1600 – 7000 Azipod DO 1600 – 7000 Azipod DZ 1500 – 17000 Azipod VI 500 – 17500 Azipod XL 2000 – 5000 Azipod ICE 1400 4500 – 10000 Azipod XO 1600 7500 – 13000 Azipod XO 1800 12000 – 21000 122 – 170 Azipod XO 2100 4400 – 6400 14000 – 22500 112 – 155 Azipod XO 2300 4400 – 6600 17000 – 25000 Azipod XO 2500 Brunvoll AS Volda, Norway, online. www.brunvoll.no, e-mail: office@brunvoll.no Rim Driven Thrusters 200 RDT 800 300 RDT 1000 600 RDT 1500 1000 RDT 1800 1400 RDT 2100 Engtek Manoeuvra Systems Pte Ltd Singapore, Singapore, online. www.ems-thrusters.com, e-mail: info@ems-thrusters.com Electric podded rotatable propulsions and deck mounted rotatable drives 200 580 A 200 E 1100 optional 275 540 A 275 E 1175 optional 350 500 A 350 E 1250 optional 500 450 A 500 E 1400 optional 800 360 A 800 E 1750 optional 1000 325 A 1000 E 1925 optional 1200 265 A 1200 E 2300 optional 1500 250 A 1500 E 2475 optional 2100 215 A 2100 E 2800 optional 3000 180 A 3000 E 3450 optional 3500 165 A 3500 E 3700 optional Rolls-Royce plc Aelesund, Norway, online: www.rolls-royce.com, e-mail: marine247support@rolls-royce.com Mermaid standard range 6000 – 11000 110 – 210 185 3600 – 5400 8000 – 16000 105 – 195 210 4100 – 5900 11000 – 20000 100 – 180 232 4500 – 6400 13000 – 23000 95 – 170 250 4900 – 6900 15000 – 27000 90 – 160 277 5400 – 8000 Mermaid Ice / HIce 4000 – 7000 110 – 170 185 450 – 850 3200 – 4500 6000 – 11000 105 – 155 210 950 – 1200 3700 – 5000 8000 – 13000 100 – 147 232 1500 – 1550 4500 – 5650 10000 – 15000 95 – 140 250 1200 – 1650 4700 – 6000 12000 – 18000 90 –132 277 1300 – 2050 5200 – 6600 HANSA International Maritime Journal HANSA 04 | International 2019 Maritime Journal – 156. Jahrgang – 2019 – Nr. 5 453

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