Compared to Azipod XO the efficiency is improved by installing to the pulling Azipod propulsion unit a special nozzle module including stator blades to straighten the water flow from the propeller to reduce the turbulence and energy loss and to give the optimum thrust for the vessel. Suitable ship types for Azipod XL are for example LNG tankers, ferries, cruise vessels, offshore construction vessels and tugs. Azipod XO is available up to 22 MW unit power and it is an ideal choice for vessels like ferries and cruise vessels. Azipod XO brings with it improved energy efficiency, excellent maneuverability and improved passenger comfort. For fast vessels a Contra Rotating Propeller concept can be formed of Azipod propulsion unit and conventional shaft line by replacing the conventional rudder with an Azipod propulsion unit where the propellers face each other.
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The motor is controlled by a frequency converter, which produces full nominaltorque in either direction over the entire speed range, including standstill. Over torque can also be utilized e.
Each Azipod propulsion system is individually designed and optimized to achieve maximum performance. The 1. In the existing propulsion installation of the 16,dwt Arctic tanker UIKKU was replaced by a cycloconverter-controlled Sea trial results were encouraging: the same trial speed at the same shaft speed was achieved as in the original trials, however, remarkable improvements were found in the manoeuvrability.
Compact Azipod Propulsion System. Image: ABB Unlike the ordinary single or double wound synchronous AC motor of conventional Azipod concept, the Compact Azipod unit incorporates a permanent magnet synchronous motor and therefore has no cooling on the rotor.
Due to this the construction of Compact Azipod thruster is simpler and more compact, either not needing a separate cooling system at all when it is cooled completely by the surrounding sea, or having a hybrid cooling with surrounding sea and small air cooling system. Direct seawater cooling makes it possible to reduce the motor diameter, a compact motor and pod dimensions lead to a slimmer body and better hydrodynamics.
The forward propeller rotation energy is utilized in the aft propeller. Environmentally friendly propulsion system Lower fuel consumption reduces emissions.
A minimal need for lubricants reduces potential leaks. Azipod propulsion also allows the use of biodegradable lubricants. Reliable solution Simple gearless design and heavyduty tests before solution acceptance. Safe and maneuverable Even the largest vessels can be maneuvered with decimeter accuracy.
Narrow harbors can be entered quickly and safely. High reliability and reduced fuel consumption Operational reliability and lower fuel consumption bring numerous benefits for most ship types. High performance in demanding conditions Ice-going cargo vessels equipped with Azipod propulsion can operate safely and efficiently, even without icebreaker assistance. Remarkably improved onboard comfort Lower propeller vibration and noise levels improve passenger comfort and create a comfortable work environment for the crew.
Save space onboard Azipod propulsion saves space inside the vessel hull for greater design flexibility that enables more cargo onboard. If you like to publish sponsor content of your company product or advertisement, mail us editor worldmaritimeaffairs.
Azipod® electric propulsion
The motor is controlled by a frequency converter, which produces full nominaltorque in either direction over the entire speed range, including standstill. Over torque can also be utilized e. Each Azipod propulsion system is individually designed and optimized to achieve maximum performance. The 1.
What is AZIPOD (Azimuthing Podded Drive) Propulsion system ?
The propeller is coupled to the prime mover with shafts and bevel gears that allow rotating the propeller about a vertical axis. This type of propulsion system has a long tradition throughout the s and today such propulsion units are produced by a number of companies around the world. Because it can rotate around its mount axis, the pod can apply its thrust in any direction. Azimuth thrusters allow ships to be more maneuverable and enable them to travel backward nearly as efficiently as they can travel forward. In order to get the most out of it, shiphandling training on simulators and manned models is required. This discovery of a new operating mode eventually led to the development of the double acting ship concept in the early s.