Cruise ship engine power is supplied through the transmission to the propeller shafts. Ship's hull, for example, can be applied by silicon coating in order to reduce friction as the ship goes through the water.

Cabling can be a weak point in the distribution system.

It was not unusual older liners to have 2 engine rooms. This is what the NCL Epic cruise ship engine looks like:Almost all new ships feature a diesel-electric propulsion form. At our The new cruise ship propulsion systems ABB Azipods XO (below photo) are more fuel-efficient than traditional systems, also providing better maneuverability, maximizing speed, reducing bad emissions, which as a whole optimizes ship's performance and enhances passenger safety.ABB Azipod propulsion systems have a major impact on cruise vessel's operating efficiency - reducing energy consumption and bad emissions by up to 20%.In 2019, ABB signed a deal with Oldendorff Carriers (1921-founded, Germany’s largest bulk shipping company with a fleet of ~700 ships) for supply and installation of Azipod propulsion systems on two newbuild carriers. Friction reduction on Celebrity Eclipse is 5%.
The new modular technology allows efficient and cost-effective custom-made systems to be built up from various existing and standard parts - mooring winches, anchor cable lifters, warping heads.Hurtigruten was compensated with ~80% of its total investment in Promas Lite marine propulsion upgrades as the Norwegian Government has this NOx fund encouraging shipowners and operators to upgrade their vessels and invest in new marine technologies that reduce NOx emissions. Each vessel was fitted with two Azipods (power output 1,9 MW per unit) plus various related electric and digital solutions (powerplant, diesel-electric generators, bow thruster motors, transformers, switchboards, power management system, ABB Ability global ABB real-time monitoring).Azipod cruise ship propulsion system is situated outside the hull in the aft of the ship. This compartmentalization is for safety reasons. This may not seem very good mileage at first glance, however, cruise ships are moving at once thousands of people whereas a car is moving a few.Nearly all contemporary ocean liners and cruise ships are powered by electricity - powering motors that turn propellers. Main engines and generators require electricity and it's needed to keep them going. Status: False. The prime movers selected for the generating sets are two 12-cylinder and two 16-cylinder Wärtsilä 38 engines for each ship. The HMS Queen Elizabeth was commissioned in December 2017. and Prince of Wales commissioned in December 2019. They recover heat from gas turbines' exhaust, which then is used to produce the electricity needed for onboard services (air conditioning, water heating).Rolls Royce is the manufacturer of the world's largest GAS marine turbine "Rolls-Royce MT30". To this class belong HMS Queen Elizabeth (to be launched 2017) and HMS Prince of Wales (to be launched in 2020), each of them with a total power consumption of 80 MW.

In addition to the shoreside charging connection, ABB supplied the newbuilds with switchboards, motors, integrated control systems and ABB Ability's Marine Remote Diagnostic System (24-hour equipment monitoring and predictive maintenance).Battery power is used during turnaround navigation in ports when ship's diesel-electric generators are switched off.


Next infographic shows the speed-fuel consumption relation on Today cruising is one of the most popular vacations, but there are significant environmental downsides. Large cables snake through all the ships to distribute electrical power.

The output shafts, to produce electrical power, are connected to generators.All ships rely on propellers/screws to be pushed through the water, providing forward and reverse motion. All these ships were constructed by the German shipbuilder MV Werften. When compared to traditional marine engines, in gas mode, the ship's engines produce 1/4 less COx, 2/3 less NOx, zero SOx and no soot particles.The onboard LNG system consists of 2 bunker stations, 2 horizontal LNG storage tanks by Linde (cryogenic, vacuum-insulated, stainless steel, total gas volume 600 m3), double-walled bunkering lines, pipelines (acid-proof stainless steel), special pipe fittings, gas distribution system, steam boilers. In 2012, TUI reduced the waste amount to 10,7 L (per passenger day), which is 27,8% less (over 2011). The technology is based on the "Flettner rotor" (patented by Anton Flettner in 1922) and uses the so-called "Magnus effect" - the spinning rotor (rotating cylinder) drags airflow faster around one side. Each ship is fitted with two battery packs (combined capacity 316 kWh / 563 HP output).


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