Concordia-class cruise ship
Type ship Costa Concordia ( 2009)
The " Concordia " class is a series of post-Panamax cruise ships of the U.S. travel group Carnival Corporation & plc, which was originally developed for the Italian subsidiary, Costa Crociere SpA. It goes back to the draft of the " Destiny " class of 1996 and was in bringing the type ship Costa Concordia, the largest construction class of the company.
In technical terms, the " Concordia " / " Splendor " class is based on a modification of the modernized from 2004 Conquest class. In comparison to this range of spa and wellness area has been expanded to a full deck.
The " Splendor " class takes within the Carnival Group a special position. It is almost identical to the " Concordia " class; for the subsidiary Carnival Cruise Lines, however, was only one ship - the Carnival Splendor - built and put into service, which is operated and marketed by the shipping company as a separate class within the fleet. It resembles more the two newest ships Costa Favolosa and Costa Fascinosa than the previously built ships Costa Serena and Costa Pacifica.
Machinery and drive
The diesel-electric machinery of the Concordia class six V -12 -cylinder Wärtsilä 46 engines of the type used. Each engine is a good ten feet long, about six feet tall and has a mass of almost 170 tons. The engines have four valves per cylinder and are equipped with common rail injection and two turbochargers. They develop at a speed of 514/min a cylinder output of 1,050 kW (approx. 1,430 hp) and each drive an alternator with an electrical output of 14,000 kVA. These generator sets are mounted on floating foundations and support the entire ship with electrical energy. With the help of exhaust heat steam is generated in special boilers, which is used among other things for water treatment on board. In addition, several additional and emergency power generators are installed. The " Costa Pacifica ", the " Costa Favolosa " and the " Costa Fascinosa " are equipped with a shore power supply system during a port stay takes over the supply of electrical energy.
In the drive system conventionally designed three-phase synchronous machines act ( Converteam " Synchro -Drive" ) over shaft systems directly to the two fixed-pitch propellers. The propeller motors run at a speed of up to 146/min and develop a power of 21 MW.
The ships are maneuvered in normal driving over conventional balance rudder that are supported at low speeds and during the creation of three transverse thrusters in the bow and stern.