ABB launches latest Azipod thruster

摘要

ABB has unveiled the latest addition to its electric propulsion range, combining its long-established Azipod technology in a unit that company says offers enhanced reliability, efficiency and serviceability at a competitive lifecycle cost. Azipod D supplies propulsion power of up to 7MW, with features including a hybrid air and water cooling system increasing torque by around 45% compared to its existing models - meaning that up to 25°/o less installed power is required for propulsion. Key features of the thruster unit include a gearless power train, meaning that the motor is next to the propeller with less critical components; electric steering with four redundancy options; adjustable strut height allowing ship builders to optimise hull forms by minimising headbox resistance; and shaftline technology including a redundant seal and online monitoring of bearings. Jaakko Aho, head of thruster business, ABB explained that the system also features enhanced condition monitoring, allowing for greater predictability and risk management by enabling remote diagnostics. He added that the simplicity of the system meant that installation costs were up to 20% lower than for other thruster systems. Overhaul of the shaftline can be completed in two days in a dry dock, without the need to send the unit for servicing, while a complete exchange of the thruster can also be completed in two days. Aho said that the ease of service contributed to lifecycle costs of up to 30% less than other thrusters.