Emma Mærsk is the first container ship in the E class of eight owned by the A. P. Moller-Maersk Group. When launched in 2006, she was the largest container ship ever built, and in 2010 she and her seven sister ships were among the longest container ships. Officially, she is able to carry around 14,770 TEU depending on the definition.
Emma Mærsk is powered by a Wärtsilä-Sulzer 14RTFLEX96-C engine, the world’s largest single diesel unit, weighing 2,300 tonnes and capable of 81 MW (109,000 hp) when burning 14,000 liters (3,600 US gal) of heavy fuel oil per hour.
The Wärtsilä RT-flex96C is a two-stroke turbocharged low-speed diesel engine designed by the Finnish manufacturer Wärtsilä. It is designed for large container ships that run on heavy fuel oil. Its largest 14-cylinder version is 13.5 meters high, 26.59 meters long, weighs over 2,300 tons, and produces 80.08 megawatts.
At economical speed, fuel consumption is 0.260 bs/hp•hour. She has features to lower environmental damage, including exhaust heat recovery and cogeneration. Some of the exhaust gases are returned to the engine to improve the economy and lower emissions, and some are passed through a steam generator which then powers a Peter Brotherhood steam turbine and electrical generators. This creates an electrical output of 8.5 MW, equivalent to about 12% of the main engine power output.
According to the Internet